High magnitude of vertical acceleration

Hi, Bjorn,

I have checked the number of Dof and constraints, and they were equal.

The acceleration function I would like to use is 74sin(2pi*3.58t) and after integration, in AnyKinEqFourierDriver,
Freq = 3.58;
A = {{0, 0.146}};

I have tried to lower the frequency or the amplitude, i.e. lowering the final amplitude of acceleration and the error didn't occur, so I guess it might be caused by the weak muscle or high acceleration of the seat, is that right?

If so, is it possible to introduce a buffer region of acceleration before it reaches the desired acceleration value to stop the error, or is there any other method to deal with the problem?

Thanks a lot.

Regards,

Zhenkai