8/08/2011

ANSYS Explicit Dynamics-Introduction to Workbench

B. ANSYS Workbench Overview

What is ANSYS Workbench?

-ANSYS Workbench provides powerful methods for interacting with the ANSYS family of solvers. This environment provides a unique integration with CAD systems, and your design process.

ANSYS Workbench is comprised of various applications (some examples):

-Mechanical for performing structural and thermal analyses using the ANSYS solver

-Explicit Dynamics for performing non-linear dynamic analyses using the AUTODYN solver.

-Geometry (DesignModeler) for creating and modifying CAD geometry to prepare the solid model for use in Mechanical.

-Meshing for generating Structural and CFD meshes

-Advanced Meshing for generating Structural and CFD meshes using ICEM CFD

-Design Exploration for optimization

-Finite Element Modeler (FE Modeler) for translating a NASTRAN and ABAQUS mesh for use in ANSYS

-AUTODYN for explicit dynamics simulations featuring modeling of nonlinear dynamics

ANSYS Workbench Overview

The Workbench environment supports two types of applications:

-Native applications (workspaces): Current native applications are Project Schematic, Engineering Data and Design Exploration.

Native applications are launched and run entirely in the Workbench window.

-Data Integrated Applications: current applications include Mechanical, Explicit Dynamics (Mechanical), Fluent, CFX, AUTODYN and others.

Starting Workbench

There are two methods of launching Workbench:

-From the Windows start menu:

-From the CAD system

The Workbench Environment

For most situations the Workbench GUI is divided into 2 primary sections (there are other optional sections we’ll see in a moment):

The Toolbox

The toolbox contains 4 subgroups:

-Analysis systems: predefined templates that can be placed in the schematic.

-Component systems: various applications that can be accessed to build, or expand, analysis systems.

-Custom Systems: predefined analysis systems for coupled applications (FSI, thermal-stress, etc.). -Users can also create their own predefined systems.

-Design Exploration: Parametric management and optimization tools.

-The systems and components displayed in the toolbox will depend on the installed products.

-Using the check boxes in the “View All / Customize” window, the items displayed in the toolbox can be toggled on or off.

-The toolbox customization window is normally left closed when not in use.

The Project Schematic

-The Workbench project schematic is a graphical representation of the workflow defining a system or group of systems.

-The workflow in the project schematic is always left to right.

-There are currently several applications which are native to Workbench, meaning they run entirely in the Workbench window:

.Project Schematic, Engineering Data and Design Exploration

-Non-native applications (called data-integrated) run in their own window:

.DesignModeler, Mechanical (formerly Simulation), Mechanical APDL (formerly ANSYS), ANSYS AUTODYN, ANSYS Fluent, ANSYS CFX, Etc . . .

-Blocks of cells can be deleted by RMB menu selection.

-In this example an Explicit Dynamics analysis type is selected for the project schematic.

-From the toolbox the selection can be dragged and dropped onto the schematic or simply double clicked.

-By dropping applications and/or analyses into various locations in the schematic, an overall analysis project is defined.

-“Connectors” indicate the level of collaboration between systems.

-In the example below a structural system is dragged and dropped onto a thermal system at the Model cell (A4).

-Before completing the operation notice there are a number of optional “drop” locations that will provide various types of linkage between systems (continued next page).

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-By completing the operation from the previous page, notice the linkage here is only at the Model level and above.

-In this case there would be no thermal/structural coupling.

-Notice each system block is given an alphabetic designation (A, B, C, etc)

By dropping the structural system at the “Solution” level we obtain a structural system that is coupled to the thermal solution.

-A schematic can also be constructed by RMB and choosing to “Transfer Data To New” or “Transfer Data From New”.

-In using the RMB transfer feature all transfer possibilities (upstream and downstream) are displayed.

-These selections will vary depending on which cell in a particular system you highlight.

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