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SOL 111: FRF Problem in defining load and damping as a function of frequency

Pioneer
Pioneer

Hi,

 

I am doing a frequency response function in SOL 111. I want to define my load and damping as a function of frequency. The load can be a force or a velocity.

But I am unable to do that, I have tried using function, field and excitation function using some tutorials of transient analysis but am unable to do it. If anyone knows how can I define my load and damping as a function of frequency, it would be really helpful. 

I just need to keep force and damping constant for now with respect to the frequency. But I am not getting desired results if I just define force and damping simply without defining a frequency function for them.

 

I would appreciate any help. I have attached some snapshots of some options I tried but failed to use. 

 

Thanks,

 

Ashwani.

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