Here is a Matlab script that converts a time history to a format which can be input to Femap or some other preprocesser for Nastran analysis. time_history_nastran.m
with supporting function: datafix.m
It can be used for force, pressure, acceleration or other amplitude types.
The script writes the Nastran data to an external ASCII text file, which would typically have a *.nas or other Nastran-friendly extension per the user’s choice.
– Tom Irvine