Patran Reference Manual-All About Groups

5.1 Group Concepts and Definitions
A group is a named collection of selected geometric or finite element entities. The primary purpose of
grouping entities within a larger model is to create easily manageable subsets that can be visually isolated
for various modeling and post-processing tasks.
A model may contain any number of groups, and any entity may be associated with more than one group.
When an entity is added to or removed from a group, other groups will not be affected.
Groups become permanent members of a model’s database. A group, named default_group, exists in any
new database; until you define and activate new groups, all new entities automatically become members
of this group.
The defining features of a group are:
-Name
-Member entities
-Status
-Attributes

Group Membership
A group may consist of any combination of geometric and finite element entities. Other design features,
such as coordinate frames, materials, element properties, loads and boundary conditions, fields, and
analysis results cannot be categorized as group members even though they are associated with group
members.
Group Status
The status of a group may be:
-current or not current
-posted or unposted
-target group
Current Group
The current group is the active and visible group that receives all newly created entities. Any group may
be selected as current, however only one group may be current at any given time. The name of the current
group is displayed as part of the Viewport Banner.
Each viewport has its own current group but the only active current group is that of the current viewport
(see also Current Viewport, 319).

 

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Patran Reference Manual-All About Groups

5.1 Group Concepts and Definitions
A group is a named collection of selected geometric or finite element entities. The primary purpose of
grouping entities within a larger model is to create easily manageable subsets that can be visually isolated
for various modeling and post-processing tasks.
A model may contain any number of groups, and any entity may be associated with more than one group.
When an entity is added to or removed from a group, other groups will not be affected.
Groups become permanent members of a model’s database. A group, named default_group, exists in any
new database; until you define and activate new groups, all new entities automatically become members
of this group.
The defining features of a group are:
-Name
-Member entities
-Status
-Attributes

Group Membership
A group may consist of any combination of geometric and finite element entities. Other design features,
such as coordinate frames, materials, element properties, loads and boundary conditions, fields, and
analysis results cannot be categorized as group members even though they are associated with group
members.
Group Status
The status of a group may be:
-current or not current
-posted or unposted
-target group
Current Group
The current group is the active and visible group that receives all newly created entities. Any group may
be selected as current, however only one group may be current at any given time. The name of the current
group is displayed as part of the Viewport Banner.
Each viewport has its own current group but the only active current group is that of the current viewport
(see also Current Viewport, 319).

 

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MSC FlightLoads and Dynamics Users Guide-Getting Started

Software
MSC FlightLoads and Dynamics is based on MSC Nastran and Patran. The MSC Nastran code must include the Aero I option. If supersonic analyses are of interest, it is also necessary to have Aero II. The Patran code must include the MSC Nastran Preference.
Experience
It is assumed that the MSC FlightLoads user has some experience with both the underlying software and the analysis procedures involved in the system. It is also expected that the user has basic familiarity with flight loads concepts such as rigid and elastic loads, stability derivatives, control surfaces, maneuvers and other similar concepts. Some familiarity with static aeroelasticity in MSC Nastran (SOL 144) and flutter in MSC Nastran (SOL 145) is beneficial.
Structural Model
One of the components of an aeroelastic model in MSC FlightLoads and Dynamics is the structural model. In this manual, these structural models are presumed to exist. They can enter the MSC FlightLoads and Dynamics system by import or by direct creation in MSC FlightLoads and Dynamics (Patran) using the structures preference. This manual does not cover any structural modeling issues. Please refer to the MSC Nastran Preference of Patran for information on structural modeling.

 

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The Renumber Action Renumbering Geometry

If more than one ID is entered and there are fewer IDs in the List of New IDs than there are valid entities
in the selected Entity List, renumbering will use the IDs provided and when the list is exhausted, the next
highest available ID will be used thereafter to complete the renumbering. The List of New IDs may
contain a # signifying to use the maximum ID + 1 as the Starting ID. However, the list may have more
IDs than needed.
The IDs in the selected Entity List may contain a #. The value of the maximum existing ID is
automatically substituted for the #. There may be gaps of nonexisting entities in the list but there must be
at least one valid entity ID in order for renumbering to take place.
A percent complete form shows the status of the renumber process. When renumbering is complete, a
report appears in the command line indicating the number of entities renumbered and their new IDs. The
renumber process may be halted at any time by pressing the Abort button and the old IDs will be restored.

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Geometry Modeling Reference Manual Part 2-Introduction to Geometry Modeling

Overview of Capabilities
A powerful and important feature of Patran is its geometry capabilities. Geometry can be:
? Created.
? Directly accessed from an external CAD part file.
? Imported from an IGES file or a PATRAN 2 Neutral file.
Complete Accuracy of Original Geometry
Patran maintains complete accuracy of the original geometry, regardless of where it came from. The
exact mathematical representation of the geometry (e.g., Arc, Rational B-Spline, B-rep, Parametric
Cubic, etc.) is consistently maintained throughout the modeling process, without any approximations or
conversions.
This means different versions of the geometry model are avoided. Only one copy of the geometry design
needs to be maintained by the engineer, whether the geometry is in a separate CAD part file or IGES file
or the geometry is part of the Patran database.
Below are highlights of the geometry capabilities:
Direct Application of Loads/BCs and Element Properties to Geometry
All loads, boundary conditions (BC) and element property assignments can be applied directly to the
geometry. When the geometry is meshed with a set of nodes and elements, Patran will automatically
assign the loads/BC or element property to the appropriate nodes or elements.
Although you can apply the loads/BCs or element properties directly to the finite element mesh, the
advantage of applying them to the geometry is if you remesh the geometry, they remain associated with
the model. Once a new mesh is created, the loads/BC and element properties are automatically
reassigned.
For more information, see Introduction to Functional Assignment Tasks (Ch. 1) in the Patran Reference
Manual.
Direct Geometry Access
Direct Geometry Access (DGA) is the capability to directly access (or read) geometry information from
an external CAD user file, without the use of an intermediate translator. Currently, DGA supports the
following CAD systems:
? EDS/Unigraphics
? Pro/ENGINEER by Parametric Technology
? CATIA by Dassault Systemes
With DGA, the CAD geometry and its topology that are contained in the CAD user file can be accessed.
Once the geometry is accessed, you can build upon or modify the accessed geometry in Patran, mesh the
geometry, and assign the loads/BC and the element properties directly to the geometry.

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MSC Fatigue QuickStart Guide-A Software Strain Gauge

The Gauge Definition File
All gauges that appear as selections under the Object pull-down are defined in a file called gauges.def
that exists in the main MSC Fatigue installation area for UNIX in
<install_dir>/mscfatigue_files/gauges.def
or for Windows in
x:<install_dir>\mscfatigue_files\gauges.def
where x: is the drive on which MSC Fatigue was installed.
This file is fully customizable to allow additions or changes to gauge types. You simply need to define
the gauge type (single, tee, rosette), whether it is stacked or planar, the configuration (rectangular, delta,
other), the units, and the coordinates, besides giving it a name. See the MSC Fatigue User’s Guide for
details or use the file contents as a guide to customization.

The file can exist in the local work directory, your home directory or in the installation area and will be
recognized in this order also. A variety of gauge types is shown above.
The Gauge Group
When a Soft S/G is created it appears graphically on the screen as one, two, or three quadrilateral
elements. Additionally a special group is created for each strain gauge. The name of these groups take on
the form:

Modify the Soft S/G
Our gauge that we have created thus far is not quite what we want. Change the Action to Modify in the
Gauge Tool. The gauge needs to be translated and rotated since the node where we placed it and the
orientation do not match the exact spot that it exists on the prototype.
On the prototype, the gauge was placed two millimeters to the left from the current location and the gauge
needs to be rotated 30 degrees counterclockwise.
1. Select Gauge to Modify: 001
Select 001 as the gauge to modify. We are not changing the type of the gauge but simply the
location and orientation.
2. Delta X: -2.0
This is the displacement to move the gauge in the x-axis direction of the existing gauge.
3. Delta Y: 0.0
This is the displacement to move the gauge in the y-axis direction of the existing gauge.
4. Delta Theta: 30
This is the rotation in degrees that the gauge is to be rotated relative to the current orientation.
5. Element type: 2D: Shell elements
Again select 2D: Shell elements as the means to define the surface.
6. Select Shell Elements: Elem 166 167 178 179
Select the same elements as before to define the surface where the modified gauge will be placed.
To properly modify the location and orientation, you must select a surface area that will contain
the new location and orientation of the modified gauge or an error will occur, e.g., if you translate
the gauge off of the defined area.

7. Reverse normal: OFF
If necessary you can reverse the normals of the gauges. The gauge outward normals are calculated
as the average of the outward normals of the selected elements or faces.
8. Click Apply.
Now that the gauge has been created and modified to the proper location and orientation, close the Gauge
Tool form by clicking the Cancel button.

 

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MSC Fatigue QuickStart Guide-Dynamic Fatigue

Introduction
All fatigue is dynamically induced. That is, there must be some level of dynamic loading in order for
fatigue damage to occur. It is probably a true statement to say that nothing in real life is actually static,
or not moving at all. Even slight changes in temperature will cause stress fluctuations in an otherwise
apparently static structure. Some dynamic loading is hardly detectable, changes very slowly, and is quite
repeatable while other types are quite noticeable and very random in nature such as engine noise from an
automobile.
The pseudo-static approach for calculating a stress time response, where unit stresses are associated with
load time histories, is valid if the frequency of the input loading is below the lowest natural frequency of
the structure. However, for cases where the dynamic response of the structure comes into play, the usage
of transient response or random response is appropriate to compute fatigue life.
Objective
? Perform analysis using transient results
? Perform analysis using the modal superposition method
? Random Vibration Fatigue analysis
? Run comparative studies

Analysis Using Transient Results
Up to this point we have strictly used linear elastic FE results from static load cases where we have
associated the time variation of the loading to externally defined time histories. This is the most common
usage of MSC Fatigue and perfectly valid for most components and structures which are fairly stiff in
nature. Thus the name quasi-static. The assumption is made that dynamic effects are third or fourth order
contributions to fatigue life and therefore ignored.
There are times, however, where the dynamics of the structure can significantly affect the fatigue life of
the product, especially when the mass of the structure is large and the operating loads approach or even
pass through the natural frequencies of the structure such as the dynamics of an entire vehicle body as
shown by the bus to the right.

In these cases it is generally better to use a dynamic FE analysis to capture all the important dynamic
effects. All time variations of the loading are defined directly in the FE model and a direct or modal
dynamic transient analysis is performed. There is no need for any externally defined and associated time
histories as with the pseudo-static method. The drawback however, is that you cannot separate the loads.
They must all be defined in the same FE analysis. Investigation of the influence each load may have on
fatigue life requires a new FE analysis to be run each time.
To illustrate the use of transient results in MSC Fatigue, follow this mini-exercise:
Transient Keyhole Job
The geometry is the same keyhole model. Open a new database called keyhole and import the MSC
Nastran Output2 file call, key_tran.op2. In addition to this transient analysis, we are also going to
compare the answers to an equivalent pseudo static analysis, so also read in the Output2 file,
key_stat.op2. Remember to read the model and results for the first file and only the results for the second
file in the order specified here.
In this version of the keyhole model, the static load case results were determined using a 30 Newton
loading at the same point of application as the original keyhole problem, the results from which, when
scaled by the load time history should give roughly equivalent stress time histories for all nodes as does
the modal transient analysis. This of course does not take into account any dynamic effects that the mass
distribution may have on the dynamic behavior and resulting stress results. However, with this simple
model and a very evenly distributed mass, there should not be a large difference.
Access the main MSC Fatigue form and read in the saved job called transient using the file transient.fin.
You will also need static.fin, so copy this file while you are at it. Systematically open the Solution
Params..., the Material Info..., and the Loading Info... forms and follow the explanations of each to
understand the setup. Note that we are running a Crack Initiation analysis.

 

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Patran Interface to LS-DYNA Preference Guide-Read Results

Subordinate Forms
The subordinate forms accessed from the “Read Results Form” will depend upon the “Action” and
“Object” selected. The various possibilities are described in this subsection.
Select State File Subordinate Form
The subordinate State file selection form allows the user to select a LS-DYNA state file from which data
is to be extracted.

Querying State File
There is no subordinate y form associated with querying the state file. The query is done automatically
once the user has selected the state file. The data returned is required by the subsequent forms.

Select Times
The subordinate “Select Times” form allows the user to select the cycle(s) for which results are to be
imported from a state file (“Translate” method only).

 

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Patran Interface to MSC Nastran Thermal-Overview

Introduction
The Patran MSC Nastran Heat Transfer Preference supports the full range of thermal analysis capabilities
available within MSC Nastran. These capabilities include:
? conduction in one, two, and three dimensions
? fundamental convection
? one dimensional advection
? radiant exchange with space
? radiant exchange in enclosures
? specified temperatures
? surface and volumetric heat loads
? elements of thermal control systems
? contact conduction
MSC Nastran can span the full range of thermal analysis from system-level analysis of global energy
balances to the detailed analysis associated with temperature and thermal stress limit levels. Within the
integrated Patran-MSC Nastran environment, you can simulate linear, nonlinear, steady-state, and
transient thermal behavior. You can apply loads and boundary conditions either on the model’s geometry
or on its finite element entities.MSC Nastran’s sophisticated solution strategy automatically addresses the
existence and extent of nonlinear behavior and adjusts the solution process accordingly.

1.2 Using this Guide
This guide is written for both new and experienced users of Patran and MSC Nastran. It provides:
? practical, “how to” descriptions of thermal modeling, analysis, and results processing and
visualization techniques
? descriptions of the relevant Patran menu forms
? basic engineering concepts and theory associated with MSC Nastran''s thermal solution
capabilities
The Patran on-line help system provides logical and efficient access to all of this material.
The remainder of Overview (Ch. 1), describes heat transfer basics. It discusses the concepts of thermal
material properties, loads and boundary conditions, steady-state and transient analysis, and convergence
criteria.
Getting Started - A Guided Exercise (Ch. 2), is designed to familiarize users quickly with the basic Patran
menu interfaces to thermal modeling, steady-state analysis, and results processing. Before beginning,
please review the Guided Tour at the top of the Patran on-line help system.
Building A Model (Ch. 3), describes Patran''s menu forms for each phase of thermal modeling:
? Meshing the geometric model with finite elements
? Defining material properties
? Specifying element properties
? Applying loads and boundary conditions
Running a Thermal Analysis (Ch. 4), describes how to select steady-state or transient analysis solution
types, define solution and subcase input data, select load cases, and submit the MSC Nastran analysis job.
Results Processing and Visualization (Ch. 5), describes how to retrieve MSC Nastran thermal analysis
results into the Patran database. This chapter also summarizes the options for sorting and graphically
rendering analysis results as contour or XY plots.
Example Problems (Ch. 7), presents more advanced engineering problems covering the following
applications:
? Transient thermal analysis (using the same flat plate model, plate.db, created in Getting
Started - A Guided Exercise (Ch. 2))
? Free convection on a printed circuit board
? Forced air convection on a printed circuit board
? Thermal contact resistance
? Typical avionics flow
? Radiation enclosures
? Axisymmetric flow in a pipe
? Directional heat loads

? Thermal stress analysis from directional heat loads
? Thermal stress analysis of bi-metallic plate
Files (App. A), describes the files created when using the Patran MSC Nastran thermal preference
product.
Error Messages (App. B) describes general error and diagnostic messages.
Supported Commands (App. C) describes the MSC Nastran input data used “behind the scenes,”
including File Management Statements, Executive Control Statements, Case Control Commands, and
Bulk Data Entries.

 

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Geometry Modeling Reference Manual Part 2-Show Actions

The Show Action Information Form
When a Show action is executed, Patran will display a spreadsheet form at the bottom of the screen. This
form displays information on the geometric entities that were specified on the Show action form.
Cells on the form that have a dot (.), means there is additional information associated with that cell. If a cell with the dot is pressed with the cursor, associated information is displayed in the textbox at the
bottom of the form.

Showing Point Locations
Setting Object to Point and Info to Location will show for a list of specified point locations, the
coordinate value locations that are expressed within a specified reference coordinate frame. Also shown
is the element property set assigned to the points. Point locations can be points, vertices, nodes or other
point locations provided on the Point select menu.

Showing the Nodes on a Point
Setting Object to Point and Info to Node will show the IDs of the nodes that lie on at specified point
locations that are within the Global Model Tolerance. Point locations can be points, vertices, nodes or
other point locations provided on the Point select menu.

 

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PUMP-FLO Method Of Solution

PUMP-FLO is a pump selection and analysis program. It can select centrifugal, regenerative turbine, and
air operated double diaphragm (AODD) pumps. Centrifugal is a broad classification of pumps that use
kinetic energy to move the fluid. They use the centrifugal force of a rotating impeller to impart kinetic
energy to the fluid (as opposed to jet pumps and eductors). Regenerative turbines share many of the
same operating principles as centrifugal pumps, but have different performance characteristics due to
their unique impeller design. Regenerative turbines are capable of producing high pressures at low
capacities. AODD pumps are positive displacement pumps that use compressed air to move a diaphragm
back and forth, pumping the fluid on the other side of the diaphragm.
For centrifugal pumps, the Hydraulic Institute Standards (Reference 1) is the basis for the PUMP-FLO
program. The Hydraulic Institute is composed of organizations and individuals who manufacture and sell
pumps in the open market. When there is a discrepancy between the PUMP-FLO program and the
current revision of the Hydraulic Institute Standards, the Standards take precedence.
PUMP-FLO selects pumps from a pump catalog and evaluates their operation in an application. Within
the range of the manufacturer’s recommendations, the program allows you to adjust the pump
parameters and see the effect it has on the pump operation.
In general, the majority of this method of solution document applies to centrifugal pump selection. Please
see the Air Operated Double Diaphragm Pumps section at the end of this document for a specific
discussion of these pumps.
Definitions
The definitions that follow are found in Reference 1 and are used in this section for the discussion of
PUMP-FLO’s solution method.
Head The quantity used to express a form (or combination of forms) of the energy content of the liquid,
per unit weight of the liquid, referred to any arbitrary datum. All head quantities are in terms of footpounds
of energy per pound of liquid, or feet of liquid.
Flow The unit of flow rate in the United States is expressed in units of gallons per minute (gpm). The
standard fluid for all pump curves is water at 60 °F.
NPSH The net positive suction head is the total suction head in feet of liquid (absolute) determined at the
suction nozzle and the referred datum less the vapor pressure of the liquid in feet (absolute). NPSHa is
the net positive suction head available in the pumping system. NPSHr is the net positive suction head
required by the pump.
Pump Input The horsepower delivered to the pump shaft (designated as brake horsepower).
Pump Efficiency The ratio of the energy delivered by the pump to the energy supplied to the pump shaft
(the ratio of the liquid horsepower to the brake horsepower).

Pump Sizing
Each pump in the catalog can have up to ten impeller diameters or speed curves. Each curve can have
up to twenty data points describing the pump operation. The data points for the curve consist of the flow
rate and head, and optionally the pump’s efficiency (or power) and NPSHr.
Regenerative turbine head curves can be generated at a particular NPSHa rather than an impeller
diameter. Each pump in the catalog can have up to ten head curves based on the NPSHa. A regenerative
turbine is listed in the search results if it can produce the design point head at a flow rate that is equal to
or greater than the design point flow rate, for a particular NPSHa. Regenerative turbines with flow rates
greater than the design point are only selected if the flow rate falls within a certain percentage of the
design point flow rate. This percentage is specified by the manufacturer.
When the design point of the pump falls between a set of known curves, the program interpolates
between them to arrive at a calculated curve. Often manufacturers allow impeller diameters to be
adjusted only in fixed increments of their choosing. For example, a manufacturer can force the program to
limit the impeller diameter increments to 0.125 inch. Alternatively, they may not allow any trimming of the
impellers

 

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PUMP-FLO Flow of Fluids Premium

Flow of Fluids Premium simulates the
operation of small piping systems transporting
liquids and industrial gases under a variety of
expected operating conditions. Flow of Fluids
Premium provides accurate results for series,
branching, and looped systems (both open and
closed) with up to 25 pipelines. If you can draw
your piping system, Flow of Fluids Premium will
show you how it operates.
Flow of Fluids Premium can handle gasses as
well as liquids. The program also allows users
to select pumps directly from more than 85
manufacturers'' supplied electronic pump
catalogs to ensure that you select the correct
pump for your system.
All new Flow of Fluids Premium purchases
include a one-year free TechNet Orange
subscription. TechNet Orange entitles users to
free technical support and upgrades for one
calendar year.

Why use Flow of Fluids Premium when my
spreadsheet provides me with the results I need?
Spreadsheet software can only calculate the head
loss in a single pipeline for a given flow rate. Flow of
Fluids Premium can calculate the head loss in a
single pipeline, and…
? Calculate the flow rates and pressures in the
entire piping system by performing a full hydraulic
network analysis.
? Select centrifugal pumps from manufacturers''
supplied electronic pump catalogs.
? Insert the pumps and control valves into the
piping system model, showing how the entire
piping system operates.
? Consider alternate operating conditions and
shows you how the system operates.
Flow of Fluids Premium provides you with a total
system view instead of a head loss calculation for a
single pipeline.

 

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PUMP-FLO Working With C-Library

 

To add body types
1 Choose the Valves / Body Types menu item.
2 Specify a body type and click the Add button.
3 Continue to add body types as described in step 2.
4 Click the Done button when you are finished.
To add valve descriptions
1 Choose the Valves / Valve Descriptions menu item.
2 Specify a valve description and click the Add button.
3 Continue to add valve descriptions as described in step 2.
4 Click the Done button when you are finished.
To add characteristic trims
1 Choose the Valves / Characteristic Trims menu item.
2 Specify a characteristic trim and click the Add button.
3 Continue to add characteristic trims as described in step 2.
4 Click the Done button when you are finished.

To add guide styles
1 Choose the Valves / Guide Styles menu item.
2 Specify a guide style and click the Add button.
3 Continue to add guide styles as described in step 2.
4 Click the Done button when you are finished.
To add pressure ratings
1 Choose the Valves / Pressure Ratings menu item.
2 Specify a pressure rating and click the Add button.
3 Continue to add pressure ratings as described in step 2.
4 Click the Done button when you are finished.
Adding  Valves
Once you have specified the valve definition items, you are ready to enter the valve
data.
To define the valve
1 Click the Valve button on the toolbar.
2 Select a valve model from the Model Name drop-down list box.
3 Select a valve body style from the Body Style drop-down list box.
4 Select a valve description from the Description drop-down list box.
5 Select a valve guide style from the Guide Style drop-down list box.
6 Select a characteristic trim from the Characteristic Trim drop-down list box.
7 Select a pressure rating from the Pressure Rating drop-down list box.
NOTE: You can also add valve definition items in the Valve Data dialog box by clicking
the Add button next to the appropriate drop-down list box.
8 Specify the flow direction by selecting the Flow To Open or Flow To Close option
button. To specify both flow to open and flow to close, select the Both option
button.

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GEDCO Stack-3D Volume Analysis

This tutorial shows how to create a stacked SEGY data volume for footprint analysis. In this
analysis traces are stacked based on the offsets provided by the survey design and script. You
can examine amplitude variability from bin to bin at your time of interest. These analyses are
particularly useful for comparing footprint characteristics for two or more candidate designs.
There are several options for calculation. One option allows you to ray trace over an OMNI
Target Model. Other options stack traces from an input CDP. OMNI 3D will compare the offsets
of traces in the input CDP to those for each shot in your survey script. It selects matching offsets
from the input and stacks them for output. We will demonstrate the use of a single SEGY NMO
corrected CDP as input.
Working with this Tutorial
Set parameters as described or shown in pictures. As you work, use OMNI 3D’s Popup Help to
see explanations of all available parameters. Hover your cursor over a parameter or click the
question mark in the upper right of a dialog and then click the parameter for Popup Help.
If you are new to OMNI 3D, please see the “Basic Land” tutorial before you use this tutorial. In
this advanced tutorial it is assumed that you can:
Start OMNI 3D
Create a project
Find and use menus in the Project Tree
Use Pop-Up Help in OMNI 3D’s menus and dialogs
Use right-click menus in the View tabs
Modify Color Bars
Create a survey
Create a script
Go to Help | Local Resources | Load Tutorial Solutions and open the Workshop Analyses
folder. The folder contains both the input data for this exercise and the completed solution
project. (Please see the end of this tutorial for information about working with the solution
project.)
To complete this set of exercises you will need these input files:
...\Tutorial\Workshop analyses\Stack 3D Example-data\Survey For Stack.osd
...\Tutorial\Workshop analyses\Stack 3D Example-data\sp203-agc-nmo.sgy

View Results
Results may be viewed in the Edit View, Chart View, 3D View, Volume View and SEGY
tabs. You may also use elements of these views to create custom montages on the Plot tab.
Edit View
Zoom in to a few bins somewhere near the center of the survey.
In the Project Tree, right click on the name of the analysis (Pattern 6×56-STCK-001) and select
Pattern 6×56-STCK-001Style. On the Bin Display tab set Color Mode to Amplitude. Under
Overlay place a check mark next to Draw Wiggle Wavelets, Draw VAR Wavelets and Draw
Timing Lines. Set the Window length to .15 seconds (150 milliseconds) and the Sample Scalar
to 2. (Notice that you can leave this dialog open as you work with different views. Just change
settings and press Apply.)
Go to the Slices tab. You are looking at a map slice through the analysis at 1 second. (OMNI
automatically displays a slice at one half the total length of the traces.) You may have noticed
that the colors for this slice are near the middle of the color bar range. That is because the color
scale is based on the minimum and maximum amplitude for the entire data volume.
Scroll to .600 seconds in the Map Slice list. Return to the Bin Display tab and turn on
Normalize Wavelets, set the Window length to .1 and the Sample Scalar to 1. Press Apply.

 

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GEDCO-Streamer Bin Fold Analysis

This tutorial shows how to create a bin fold analysis for a marine streamer survey. You will learn
how to create and display the analysis. You will also review ASCII reports and writing scripts.
Working with this Tutorial
Set parameters as described or shown in pictures of dialogs. As you work, use OMNI 3D’s
Popup Help to see explanations of all available parameters. Hover your cursor over a parameter
or click the question mark in the upper right of a dialog and then click the parameter for Popup
Help.
If you are new to OMNI 3D, please see the “Basic Streamer” tutorial before you use this tutorial.
In this intermediate tutorial it is assumed that you can:
Start OMNI 3D
Create a project
Find and use menus in the Project Tree
Use Pop-Up Help in OMNI 3D’s menus and dialogs
Lay out a model streamer survey
Go to Help | Load Tutorial Solutions and open the Streamer folder. The folder contains both
the input data for this exercise and the completed solution project. (Please see the end of this
tutorial for information about working with the solution project.)
To complete this tutorial you will need this file:
...\Tutorial\Streamer\Streamer Analysis Example-Data\Swath Streamer.ost

Create Streamer Analysis
The shooting script is an integral part of the streamer sail line definition. To create an analysis
for this survey go to the Project Tree and right-click on Analyses under the name of the survey
(Swath Streamer). Select Create New Analysis and choose Bin – Fold, offset, azimuth
statistics.
The top two analyses are available in OMNI
3D Layout. You must be licensed for OMNI
3D Workshop to use the analyses listed in the
bottom box.
We will start with a Bin - Fold, offset,
azimuth statistics analysis.
The binning method for the analyses on the
left assume a horizontal surface and flat
reflectors.
There are several methods for binning the
data. Either a horizontal or dipping reflector
may be used.

If you have more than one processor on your machine, OMNI 3D’s multi-threading can allow
you to continue to work while this calculation takes place in the background. Specify the number
of processors OMNI 3D can use for this calculation.
Use the default name or click the Change Filename button to give the analysis a new name.
Click Finish to begin the calculation.
When the calculation completes, go to File | Save to save the project.
Display Bin Analysis
The calculated analysis will display automatically. Right-click in the Edit View and select Full
View to see the entire survey.

In this example the bins are colored by the number of offsets equal to or less than 3000 meters in
length. The color scale maximum is the total fold for the survey when all offsets are counted.
Right-click in the color scale and select Set Levels From Data. This will rescale the color scale
to the maximum value based on current settings in the Bin Analysis Style.

 

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GEDCO-EWE Elastic Wave Equation Modeling

This tutorial shows how to create an EWE Analysis Model on a 2D Ray Model. SEGY files will be created in two different ways.
No License? No Problem!
You are invited to learn more about OMNI 3D? by reviewing tutorials and examining Tutorial Solution projects.
To create your own project you must have an OMNI 3D? license.
To obtain a trial license go to the Help Menu and see: Help Contents -> Getting Started -> License.
Set parameters as described or shown in pictures of dialogs. As you work, use OMNI 3D’s Popup Help to see explanations of all available parameters. Hover your cursor over a parameter or click the question mark in the upper right of a dialog and then click the parameter for Popup Help.
Working with this Tutorial
If you are new to OMNI 3D, please see the “Basic Land” tutorial before you use this tutorial. In this advanced tutorial it is assumed that you can:
Start OMNI 3D
Create a project
Find and use menus in the Project Tree
Use Pop-Up Help in OMNI 3D’s menus and dialogs
Use right-click menus in the View tabs
This tutorial applies to the tutorial solution project titled “EWE Interactive Example”. You may compare your results to the solution project. Go to Help | Load Tutorial Solutions and open the 2D Ray Model folder. The folder contains both the input data for this exercise and the completed solution project.
To complete this set of exercises you will need this input file:
...\Tutorial\2D Ray Model\EWE Interactive Example-Data\EWE Model.rmd
To open the solution project, double-click the file named:
...\Tutorial\2D Ray Model\EWE Interactive Example.odb

Preparation
Double-click the OMNI 3D? icon on your Desktop to start the program. When OMNI 3D opens, go to File on the OMNI 3D Menu Bar and select New. Create a directory for your project and name it “EWE Interactive”. The result is a database file (EWE Interactive.odb) and a corresponding folder (EWE Interactive -files).
Select Meters for the Units. Do not place a check mark next to Create an Empty Survey.
Right-click on the 2D Ray Models folder and select Add Existing 2D Ray Model File. Browse for and add EWE Model.rmd.
Set Parameters for the EWE Model
Beneath 2D Ray Models you will see the name of the model (EWE Model) and Horizons folder. Expand it to show a list of horizons beneath. Right-click on the name of the first horizon (Surface), select Horizon Style and go to the Horizon Properties tab. You will notice that Gradients and Heterogeneity properties may be added for each horizon layer.

down list at the right to move between horizons. If you change a setting, be sure to click Apply before you move to the next horizon. Note that the Reflects Rays and Q settings are ignored in EWE calculations. However, both are used in Interactive Analysis to create Ray Traced Wavefronts. (Ray Traced Wavefronts are not available when Gradients and/or Heterogeneity are incorporated into the model.)
Create a Well Bore
1.
Beneath the model name (EWE Model), right-click on the Well Bores folder.
2.
Select Create NEW Well Bore from the popup menu. A wizard will open.
3.
Use the mouse to digitize a well bore. Left-click in the yellow horizon, near the 3900 m offset. Progress downward with the mouse, left-clicking to add points to the well bore. Finish in the Red horizon by double-left-clicking the mouse.
4.
There should be a series of coordinates in the wizard edit box. If not, press the Clear button and repeat the above steps.
5.
Press the Apply button on the wizard, to create the new well bore.
6.
Accept the defaults on the Well Bore - Display dialog, and press Finish. The new well bore will now be a part of the model.
7.
Press the Exit button to leave the wizard.
Create an EWE Analysis
1.
Beneath the model name (EWE Model), right-click on EWE Analysis Models and select Create New EWE Analysis.
2.
In the Save File dialog, accept the default name EWE Model–EWE-001.ow2. Click Save to add the analysis file to the EWE Analysis Models folder.
3.
Right-click on EWE Model-EWE-001 and select Interactive.... The Wavefront Analysis Interactive Wizard will open.
Set Shot Location
You can type or click to set the location of the shot.
1.
In the 2D Ray Model View, click on the yellow layer of the model near the 4000 meter offset. In the wizard, the Offset and Elevations are set to the mouse coordinates.
2.
To place the shot point just below the top surface of the model, place a checkmark next to At Surface.
3.
In the wizard, under Shot Location, type “4000” m for the Offset. Note that this moves the shot location indicator on the model.

 

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GEDCO-Land Script and Bin Fold Analysis

 

This tutorial shows how to create a script and fold analysis
for a land survey. You will learn how to create and display
the analysis. You will also review ASCII reports and
writing scripts.
Set parameters as described or shown in pictures of dialogs.
As you work, use OMNI 3D’s Popup Help to see
explanations of all available parameters. Hover your cursor
over a parameter or click the question mark in the upper
right of a dialog and then click the parameter for Popup
Help.
Working with this Tutorial
If you are new to OMNI 3D, please see the “Basic Land” tutorial before you use this tutorial. In
this intermediate tutorial it is assumed that you can:
Start OMNI 3D
Create a project
Find and use menus in the Project Tree
Use Pop-Up Help in OMNI 3D’s menus and dialogs
Lay out a simple survey
Go to Help | Local Resources | Load Tutorial Solutions and open the Land folder. The folder
contains both the input data for this exercise and the completed solution project. (Please see the
end of this tutorial for information about working with the solution project.)
To complete this tutorial you will need this file:
...\Tutorial\Land\Script and Fold Example-Data\Survey A.

Fold Calculations
Based on the survey layout and the shooting script we can create a statistical fold analysis. Rightclick
on the script filename (Survey A-Pattern 6X56) in the Project Tree and select Create New
Analysis.
The top two analyses are available in OMNI 3D Layout.
You must be licensed for OMNI 3D Workshop to use the
analyses listed in the bottom box.
We will start with a Bin - Fold, offset, azimuth statistics
analysis.
The analyses on the left
assume a horizontal surface
and flat reflectors.
The analyses on the right are
all computed assuming a
horizontal surface and a
dipping reflector.
Select Common Mid Point
and press Next.
(Note: Illumination analyses can be performed in OMNI 3D Workshop using surface topography
and/or structural horizons.)

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GEDCO-Illumination Analysis over a 3D Ray Model

This tutorial shows how to create an Illumination Analysis over an OMNI 3D Ray Model. This is
a very quick method for identifying areas of your target which may present illumination
problems. Shot and Receiver elevations are used and curved rays are traced through the 3D
velocity model.
Working with this Tutorial
Set parameters as described or shown in pictures. As you work, use OMNI 3D’s Popup Help to
see explanations of all available parameters. Hover your cursor over a parameter or click the
question mark in the upper right of a dialog and then click the parameter for Popup Help.
If you are new to OMNI 3D, please see the “Basic Land” and “Land: Script and Fold” tutorials
before you use this tutorial. In this advanced tutorial it is assumed that you can:
Start OMNI 3D
Create a project
Find and use menus in the Project Tree
Use Pop-Up Help in OMNI 3D’s menus and dialogs
Use right-click menus in the View tabs
Modify Color scales
Create a survey
Create a script
Create an analysis
Use analysis style settings to display bin Overlays and Offset/Azimuth limited fold
Go to Help | Local Resources | Load Tutorial Solutions and open the Workshop Analyses
folder. The folder contains both the input data for this exercise and the completed solution
project. (Please see the end of this tutorial for information about working with the solution
project.)
To complete this tutorial you will need these input files:
...\Tutorial\Workshop Analyses\Illumination - 3D Ray Example-Data\Survey For
Illum.osd
...\Tutorial\Workshop Analyses\Illumination - 3D Ray Example-Data\Topography.xyz
...\Tutorial\Workshop Analyses\Illumination - 3D Ray Example-Data\Illumination.r3d
Note: This tutorial was written to accompany the OMNI 3D V10 release. Just before the release
a new Auto-Finish button was added to the wizard dialogs. This can be used when you want to
recalculate an analysis. Adjust only the parameters you want to change and press Auto-Finish.

Preparation
Double-click the OMNI 3D icon on your
Desktop to start the program. When
OMNI 3D opens, go to File on the OMNI
3D Menu Bar and select New. Create a
directory for your project and name it
“Illumination Target”. The result is a
database file (Illumination Target.odb)
and a corresponding folder (Illumination
Target-files).
Specify the Projection for this project.
Right-click on the Project Tree folder
titled "Surveys" and select Add Existing
Survey | OMNI 3D Design Format.
Browse for and add Survey For
Illum.osd.
This analysis requires elevations for shot and
receivers. Right-click on the name of the
survey (Survey For Illum.osd) and select
Attributes | Set from XYZ File. First you will
specify the attribute you want to set.
All OMNI 3D surveys automatically have an
"Elevation" attribute. Additional attributes
may be created in the Shot Style or Receiver
Style dialogs. Confirm that Elevation is
selected for Shots and press Next. Do the
same for Receivers.

Create an Illumination Analysis
Right-click on the name of the script in the Project Tree
(Field Layout-Pattern 6×56) and select Create New
Analysis. Under OMNI 3D Workshop Module, choose
Illumination - Ray-traced fold over a complex model.
Calculate 3D Ray Model Illumination
The 3D Ray Model Illumination is a full 3D curved ray
tracing method. Shot and Receiver elevations are used.
This analysis is very fast.
Rays are curved through the velocity model described in
the 3D Ray Model. An illumination point is identified for
each shot and receiver pair. The illumination point is
refined based on topography, structure and velocity to
find the shortest time path. The result is that sometimes
no reflection points are found for deep synclines or steep
structures.
Choose to calculate Fold AND Points.
The Fold ONLY option can be useful
when you have a large survey to
calculate or you need to save time and
disk space.
Select Ray 3DModel for the
Calculation Method.
(For Illumination calculated over a
Target Model please see the Illumination
- Target tutorial.)

http://www.cadfamily.com/HTML/Tutorial/GEDCO-Illumination%20Analysis%20over%20a%203D%20Ray%20Model_305940.htm

GEDCO-Basic Land Tutorial May 2010

This tutorial gives step by step instructions to lay out a
basic orthogonal land survey. You will learn how to create
a project, lay out shots and receivers, and to change how
stations are displayed and numbered. You will also learn
how to automatically fill a survey Boundary (outline) with
shots and receivers.
Set parameters as described or shown in pictures of dialogs.
As you work, use OMNI 3D’s Popup Help to see
explanations of all available parameters. Hover your cursor
over a parameter or click the question mark in the upper right
of a dialog and then click the parameter for Popup Help.
Working with this Tutorial
Go to Help | Load Tutorial Solutions and open the Land folder. The folder contains both the
input data for this exercise and the completed solution project. (Please see the end of this tutorial
for information about working with the solution project.)
To complete this tutorial you will need this file:
...\Tutorial\Land\Basic Land Example-Data\Boundary Points.pnt

Basic Land Survey Layout
This is a basic tutorial. We will start by creating a project.
Double-click the OMNI 3D icon on your Desktop to start the program. When OMNI 3D opens,
go to File on the OMNI 3D Main Menu and select New. Create a directory for your project and
name it “2D Ray Model”. The result is a database file (2D Ray Model.odb) and a corresponding
folder (2D Ray Model-files).
Select the Projection system for this project as
shown in the dialog to the right.
In the Project Tree, right-click on the Surveys
folder and select Create New Survey | Empty
Survey.
Name the survey “Basic” and save it in the Basic
Land-files directory.

Create Sources
Right-click on Shots under the name of the survey (Basic.osd) and select Add Shots | Add
Lines Wizard. You will use the Shots-Survey Size Definition dialog to set up a grid of sources.
The diagram updates as you change parameters. Blue represents the direction in which shot
station numbers increase (Sht In-Line bearing), red is the direction in which line numbers
increase (Sht X-Line bearing), and green is the direction of the lines when a Skew is applied.
When no skew is applied the green line is parallel to the blue line.

 

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Madymo-Utilities Manual

2.1 Introduction
Scalable dummy models and human models can be used for the design of safer vehicles and
restraint systems. With such dummy models the safety of vehicles can be evaluated for subjects
with an anthropometry that is different from the available dummies. This is relevant for
instance for the design of .smart restraint systems.. For accident reconstructions it is considered
important to have a model that describes the anthropometry of the victim with sufficient
accuracy. In general, the size and weight of accident victims deviates considerably from any
available dummy. Sometimes models with an extreme anthropometry are required.
A method has been developed to generate models of subjects with varying anthropometry.
This method has been applied to crash-dummy models and human body models. The method
requires a parametrized description of the anthropometry of a dummy model, the reference
dummy model. This model is scaled to a model with the same structure (bodies, ellipsoids,
force models) as the reference model, but with the specified anthropometry. The first step of
the method is to generate a set of key parameters from a relevant population that describes the
anthropometry of the target occupant, The anthropometries of the reference dummy models
that are available for scaling, have also been described with this set of parameters. The second
step is to scale the reference model towards the desired anthropometry. Different scaling
factors are applied for the different body parts and dimensions. These factors are used to derive:
body dimensions, mass and inertia properties, joint locations, ellipsoid dimensions, force
models, joint models and contact characteristics.
A graphical impression of scaled Hybrid-III dummy models using this approach is given in
Figure 2.1.

2.2 Considerations for use
Some limitations apply to the MADYMO scaler that are important to keep in mind when
performing a scaling operation:
? The database that is used to scale the dummy model represents humans, not dummies.
A 50th human male does not have the same dimensions and weight as a Hybrid-III 50th
percentile dummy - the latter is smaller in size (when placed in a standing position). The
same applies to the 5th female dummy model. This means that when percentiles are
used, the scaled dummy models will not correspond to dummy percentile values. Scaling
a 50th percentile Hybrid-III dummy using 50th percentile human body dimension
values will result in a larger dummy model
? The body segment proportions of humans and dummies are not the same. This means
that individual dimensions of body segments may change by the scaling process, even if
the overall dimensions are not affected by the scaling process. For example, the human
body data suggests larger arm and leg dimensions. A scaled dummy model will therefore
have longer arms and lengths when compared to the overall body length than the
unscaled model. If the body segment proportions must be maintained, the user should
use the .fixed scale factors. method to scale the dummy (see Section 2.4.4 for details).
? The MADYMO/Scaler does not translate the parameterized files of a previous MADYMO
release to the current release.
2.3 Usage of MADYMO/Scaler
MADYMO/Scaler requires a special input file with the extension ’.dat.’. This file is described
in Sec. 2.4. It defines the dummy model that has to be scaled (the reference dummy model)
and the desired anthropometry. The scaling process is illustrated in Fig. 2.2.
To start MADYMO/Scaler type:
madymo74 -madyscal filename[.dat]
The following reference dummy models are available for scaling:
d_hyb36yel.par Sitting 6 year old Hybrid III
d_hyb305el.par Sitting 5th percentile female Hybrid III
d_hyb350el.par Sitting 50th percentile male Hybrid III
d_hyb350faael.par Sitting Hybrid III 50th percentile male FAA
d_shb350el.par Standing 50th percentile male Hybrid III
The desired anthropometry can be specified in a simple way using MADYMO/Dummy Generator.
This requires only the mass and/or body standing height (and/or age for children).
The relevant routines from MADYMO/Dummy Generator have been integrated into the MADYMO/
Scaler program, and these are used to generate a set of 35 anthropometric parameters (see Table 2.1). For a detailed description of the anthropometric parameters, the user is referred
to Section 3.2 Alternatively the user may directly define these 35 parameters. This set of parameters
may be generated withMADYMO/Dummy Generator and then edited to describe a
specific subject. These parameters may also be derived from other anthropometry sources like
RAMSIS. This approach was used in a study performed by Happee et al. (1998).
A subset of the 35 parameters in Table 2.1 is used for scaling. For every reference model the
corresponding parameters have also been evaluated. In the first part of the scaling, scaling
factors are simply obtained as the ratio of the previously mentioned subset of parameters for
the desired and the reference model. Thus various scaling factors are derived for separate
body parts and for x, y and z directions. The resulting scaling factors are then applied to the
reference model. The default scaling factor for standing height is applied for the parameters
in Table 2.1 that are set to 0.0. The value 0.0 is not allowed for parameters 2, 6 and 24.
The scaling process uses non-linear methods developed at TNO Automotive. These methods
enable scaling of all mechanical parameters, including joint stiffness and damping. Background
information on the scaling method is given later in this section.
After the first part of the scaling, the mass and the main dimensions of the resulting model are
checked. The totalmass of the scaledmodel is only an indirect result of the scaling process and
therefore normally deviates slightly from the specified mass. The main dimensions (standing
height, seated height and shoulder breadth) may deviate slightly from the target values due
to various factors complicating the scaling.

 

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Madymo-Theory Manual

4 Sensor, signal, operator and control elements
The sensor, signal, operator and control elements are described in this chapter.
These elements allow control of the system (as opposed to sensors for output
purposes, see Reference Manual). A desired time-dependent motion or load
can be defined with a function signal element. Sensor, external input and
function signals can be manipulated with operators and PID controllers.
The output signals of all sensor, operator and control elements can be used as:
? input signals for operators and controllers,
? input for actuators that apply forces or torques to bodies,
? input for switches that define state conditions,
? input for external output signals that define interaction with external
programs.
4.1 Sensors
Sensors can be used to extract the quantities of multi-body systems and airbag
chambers. The output value of a sensor can be used as input for signals, operators,
controllers and actuators. The types of sensors available are:
? airbag sensors.
? belt sensors.
? body sensors.
? joint sensors.
? surface distance sensors.
? restraint sensors.
? contact sensors.
? switch sensors.
? node distance sensors.

Explicit methods are conditionally stable and therefore put limitations on
selection which time step can be used. Due to the fine spatial discretization often required,
a much smaller time step is needed for finite element models than for
multi-body models. To increase the efficiency of the entire analysis, the finite
element analysis is sub-cycled with respect to the multi-body analysis using a
different constant time step for each finite element model. If contacts between
different finite element models are specified, the time step is identical for all
the finite element models that are in contact. MADYMO automatically selects
the smallest time step used in any of the finite element models defined.
In order to be able to model parts of belts with membrane or truss elements,
a node can be tied to a belt segment (See "Belt model" on page 169). All current
belt model options can be used, including retractors, pretensioners and
load limiters, so the finite element belt model can slide over dummy model
surfaces.

http://www.cadfamily.com/HTML/Tutorial/Madymo-Theory%20Manual_305923.htm

Madymo-Hybrid III 95th ellipsoid Q model version 1_0_3

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Madymo-Hybrid III 95th ellipsoid Q model version 1_0_3

Madymo-Applications Manual

1.1 Airbag-related features
The user will often have to deal with the same important airbag-related features and
aspects when building an airbag model. This section gives explanations on those
aspects.
1.1.1 Time step and computation time
To be predictive, finite element airbag models require the use of a relatively small time
step. In general, a time step of 1·10-6 s is advised in order to describe contact
interactions correctly. This is particularly true in applications where the airbag
deployment must be modelled accurately, and also in applications with FE dummy
models. Therefore, particular attention has to be paid to the definition of the contact
groups, since a more selective choice of the elements involved in contact can
significantly reduce the computation time. Another way to improve the efficiency of
simulations with respect to CPU time is to activate the detection of the contacts only
when this becomes relevant. For that, the STATE.CONTACT and SWITCH.* elements
can be combined.
Note that no sub-cycling is allowed between the thermo-dynamical Gas Flow (GF)
calculation and the Finite Element (FE) calculation of the FE model containing the GF
module. When one of the required GF or FE time-step is smaller than the other one, the
smallest is used. Due to small GF cells and high gas velocities the GF time step might
drop, causing the related FE time step to drop as well. When contact is defined
between this FE model and another FE model, the time step of this other FE model will
be set to the same value as the first one, in order to obtain a synchronisation of the
contact.

1.1.2 MADYMO Folder program
The MADYMO Folder program is able to fold any flat mesh. Meshes can be folded
either with the standard Folding module or with the newly-developed Mesh
Independent Folding module of the MADYMO Folder. Before using the standard
module the mesh has to be prepared in such a way that the nodes are distributed along
the folding lines, so that the elements are not distorted during folding. With the Mesh
Independent Folding module there is no need to prepare the mesh in advance, since
the module makes use of a special algorithm that enables re-meshing before folding. It
is strongly recommended to check the general aspect of the mesh at the end of the remeshing
process, to ensure that no extremely small elements have been created that
could influence the time step of the simulation.
When using the MADYMO Folder program, the user should avoid intersected
elements and minimise the number of distorted elements in the folded airbag. It is
possible to detect both within the MADYMO Folder program, and even the strains in
the mesh can be checked. In general, thin folds will affect fewer elements than thick
folds, but will cause slightly larger local deformations. To minimise distorted elements
the user can also make use of two folds of 90° instead of one of 180°, if this is possible.
The user should always try to find a compromise between relatively low strains in the
mesh and relatively large gaps between the fabric layers.

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Madymo-Folder User manual Release 4_0

1.1 Starting the code
FOLDER is run from the command line.
FOLDER may be run both locally on your machine and remotely, in client/server mode, using the remote machine
(client) to display on the local screen (server). For remote usage it will be necessary to set the host’s DISPLAY
environment variable to point to the server, and to enable remote display on the server: see section 1.3 if you have
problems doing this.
1.2 Selecting a graphics device
On Windows This panel is not normally mapped, and FOLDER starts under OpenGL automatically
On Unix / Linux When FOLDER starts you will see the device selection panel:

There are also three settings that control the appearance of the screen menu interface (but not the graphical images of
your model). These are:
Scale Controls the effective scale of the display used for the menu interface.
The menu system for FOLDER was designed for a high resolution (1280 x 1024) display of at
least 17" size. On smaller screens and/or lower resolution displays it can be a bit over-sized
leading to some panels being too small for their contents. The "scale" value can be used to factor
the physical size of the display: values greater than 1.0 will make it appear to be larger, so text
and buttons will shrink making more of them fit into panels.
This variable may also be set using the environment variable DISPLAY_FACTOR. Valid
settings being a number in the range 0.5 to 2.0, or the word "automatic". For example:
setenv DISPLAY_FACTOR 1.2 ( C shell syntax)
DISPLAY_FACTOR=automatic; export DISPLAY_FACTOR (Bourne shell)
The "automatic" setting calculates a factor based on your physical screen size: you can still
overwrite it in this front panel.
(May also be set interactively from the Options >, Menu Attributes pulldown window.)

 

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Madymo-Installation Instructions

2 Conventions in this manual
The data thatmust be entered on the command line is indicated with typewriter font (courier).
The conventions are:
(UNIX) Commands are typeset in a box, and put in typewriter font.
A part of a command that is variable will be in underlined font. The user must enter the
appropriate data.
Most UNIX commands can normally be used for all UNIX systems. However, if a specific system
dependent UNIX command is needed, it is preceded by an underlined name identifying
the computer system, followed by a colon.
The UNIX system prompt is shown as a % (C-shell) or a $ (Bourne shell) sign.
When a line within a script does not start with the shell prompt sign, the line is a continuation
of the previous line.
3 Downloading MADYMO products
DownloadingMADYMO products, patches and models requires access to theMADYMO web
pages at www.tass-safe.com. Authorization is required to access the software download area.
To obtain access, contact your MADYMO support office.

4.1 Installing MADYMO
Read the installation document README.TXT and follow the instructions to carry out installation
on the desired operating system. This document can be found on the CD-ROMor can be
downloaded from www.tass-safe.com (see Section 3) for the appropriate MADYMO release.
Before starting the installation procedure, first check if the system hardware and operating
system version match the requirements listed in Appendix A and Appendix B.
4.2 Setting up the Command Line Interface under UNIX
With the MADYMO Command Line Interface (CLI), madymo_cli, all MADYMO release R7.4
executables can be launched.
madymo_cli is a platform specific executable, and can be found in the directory
madymodir/madymo_74/platformid/bin.
The CLI can be made accessible to users in two ways. Read the following section, and select
the method that best suites your computing environment.
1. Create a symbolic link in a directory that is normally found in a users PATH, linked directly
to the madymo_cli executable. Since madymo_cli is platform dependent, a link
must be created for every platform that is installed. This method is best suited to computing
environments that support only one or two platforms.

http://www.cadfamily.com/HTML/Tutorial/Madymo-Folder%20User%20manual%20Release%204_0_305908.htm

Madymo-Rule Based Checker API Documentation

1 Module pyrbc.coordinate
Module for easy access of Madymo COORDINATE.* elements
Example code:
#retrieve an FE model from a Madymo deck
fe model = tree.elements by name(tree.root(),’FE MODEL’)[0]
#get all coordinate cartesian elements from this model
m = coordinate cartesian(fe model)
print "Heading: ", m.heading()
for d in m.data():
print "data: ", d

2 Module pyrbc.element
Module for easy access of Madymo ELEMENT.* elements
Example code:
#retrieve an FE model from a Madymo deck
fe model = tree.elements by name(tree.root(),’FE MODEL’)[0]
#get all line3 elements from this model
m = element line3(fe model)
print "Heading: ", m.heading()
for d in m.data():
print "data: ", d

Utility class for ELEMENT REF.QUAD4 contents under a FE MODEL parent element. The content is
the merge of corresponding data from ELEMENT REF.QUAD4 elements and tables. The heading is set to
’ID’,’PART’,’N1’,’N2’,’N3’,’N4’(’PART’,’N4’ optional)

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