Time History Triangular Function Definition Form

See Time History {Type} Functions topic for details about using the form. The parameters for this type of definition are as follows:

The triangular time history function is a periodic function. A single cycle of a triangular function is defined by five points (time, function value). Those five points, in order, are (0, 0), (0.25 * Period, Amplitude), (0.5 * Period, 0), (0.75 * Period, Amplitude) and (Period, 0). The following parameters are specified in the Triangular time history function template.

Period edit box. Use the default or specify the time in seconds that it takes for the triangular function to complete one cycle.
Number of Cycles edit box. Use the default or specify the number of cycles in the function.
Amplitude edit box. Use the default or specify the maximum function value of the triangular function.

Access the Time History Triangular Function Definition form as follows:

Click the Define menu > Functions > Time History command, to display the Define Time History Functions form. Then do one of the following:

- Select Triangular Function from the Choose Function Type to Add drop-down list and click the Add New Function button.
- Select a previously defined function and click the Modify/Show Function button.