I have a query regarding the calculation of the so called “Modal Participation Factor time signal” from a combination of
a) transfer functions (amplitude and phase for each eigenmode) obtained from "unit" accel loading in an FEM model
b) real accel-time test data.
I would like to somehow combine the above 2 to obtain the so called "modal participation factor time history".
Can some-one point me in the right direction? Best Regards