1 Task
1.1 Task
To analyze the strength of a cylindrical gear pair as specified in ISO6336,method B.A load spectrum is used in this example. The safety factors, service life and permissible power rating are to be calculated.
The following data is specified for this cylindrical gear pair:
2 Calling the program
2.1 Starting the software
You can call KISSsoft as soon as the software has been installed and released. Usually you start the program by clicking "Start→Program Files→KISSsoft 03-2011→KISSsoft". This opens the following KISSsoft user interface:
Figure 2.1 Starting KISSsoft, initial window
3 Entering the data
3.1 Inputting the load spectrum
KISSsoft provides a range of different options for you to input load spectra. If the load spectrum is stored in the database it is also available to other calculations.In contrast, if you use the"Own input" option to enter the load spectrum, it is only available to the current calculation.
3.1.1 Database: direct entry
After you have opened the database tool as shown in Figure 3.2 with authorization to write data to it (you may have to run KISSsoft as the Administrator), you now have a range of options for defining load spectra in the database. Select "Load spectra" from the list and click on "Edit" to call the appropriate table.
Figure 3.3 Generating a new data record
Click "+" to create a new data record. If a data record is marked, its data is copied and "_NEW" is attached to its label. If no data record is marked, a new one will be created. Now enter a description.
You now see information about the "frequency, power or torque and speeds" for the corresponding load level elements.You can also specify whether the load spectrum refers to the torque or the transmitted power. Once you have finished entering data for this load spectrum, click "OK" and then click "Save" to save this data record. Then click "Close" to close the database tool and return to the KISSsoft system's initial screen. The load spectrum is now available for analysis.
Figure 3.4 Inputting the load spectrum
3.1.2 Database: data input from a file
You can also transfer a load spectrum to the database as a file. To do this, enter the required load
spectrum in a text editor as shown below:
Frequency Torque/Power/ Speed
For example:
0.1 0.2 0.2
0.2 0.3 0.5
0.4 0.9 0.8
0.3 1.0 1.0
This file is saved as a file with the file extension *.dat (in this example "Example-Tut-010.dat", for preference in the ...\KISSsoft 03-2011\ext\DAT folder (for more information,see Figure 3.5) or in any other folder (for more information see Figure 3.6).
In the KISSsoft installation folder you will find a folder called C:\Program Files\KISSsoft 03-2011\ext\DAT. If you store files with the file extension *.dat in this folder, the KISSsoft system will be able to find them automatically. In this case, you only need to enter the following:
Figure 3.5 Inputting the file description in which the load spectrum was saved
If you save the file with the load spectrum to a different folder, you must also store the entire path + file name in the "File name" field. If the path name is too long, follow the steps described above:
3.1.3 Own input
After you have clicked the Figure 3.7 plus button as shown in 
Figure 3.7 Calling "Own input" load spectrum
3.2 Inputting toothing data
To call the cylindrical gear calculation, go to the modules tree window in the KISSsoft main screen.
There, click the "Modules" tab and then click"Cylindrical gear pair [Z012]".Then input the toothing data specified below:
Figure 3.8 Inputting toothing and load data
(1) Reference gear
(2) Load: here you must input two of the three values (speed, torque, power)
(3) Calculation method
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