Thanks for your helpful and patient reply.
Since I am also considering not including the nonlinear materials. Because only the geometric nonlinearity will also cause the system nonlinear. besides, you said that I need to use the sine function instead of the cosine function which will avoid the high-frequency noise that cause the data I do not want?
As for the boundary conditions, does it means that only the displacement is enough?
by the way, I turn on the large deflection and the nonlinear effects within the workbench, does it means that I make the model geometrically nonlinear?
That will be very great if you could provide me with the acceleration or displacement file with different settings.
As for a question concerning the damping, if I do not know the damping of the flexible PCB with the IC chips mounted on it, How could I deal with the damping? any suggestion?
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