See Time History {Type} Functions topic for details about using the form. The parameters for this type of definition are as follows:
The sine time history function is a periodic function. A sine function cycle starts at a function value of 0, proceeds to its positive maximum value (positive value of amplitude), continues to a value of 0, progresses to its negative minimum value (negative value of amplitude), and returns to a value of 0 again. The following parameters are specified in the sine time history function template.
Period edit box. Use the default or specify the time in seconds that it takes for the sine function to complete one cycle.
Number of Steps per Cycle edit box. Use the default or specify the number of steps (i.e., function value points) provided for each cycle of the function.
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 sine function.
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Access the Time History Sine Function Definition form as follows:
Click the Define menu > Functions > Time History command to display the Define Time History Functions form.
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