Nastran reference manual : Time Dynamic Type 1


MENU SEQUENCE:
Data → Loads → Dynamics Loads

Defines a time dependent dynamic load of the form:

This condition is used in transient response problems, where:
t= independent variable, it is a time.
A= Scale factor
= Time delay
F(t- ) is a function defined by table of interpolation. Table has to be created before assigning this condition and associated to the condition using statements "Table Interpolation Values F(t- )".
The user has to define these tables using the following menu sequence: Materials->Tables. More information about table creation can be found in the chapter Tables of this manual.
This condition can be assigned over points, lines and surfaces and affects nodes of the mesh.