Operational Deflection Shapes ODS

Hey all!

I'd like to enhance the investigation of the resonances of a mechanical system model incluing flexibles structures. Is it possible to extract operational deflection shapes from the System after the simulation using the Adams PPT? Or should I stop the Simulation at a certain time step(system state) and do a linear mode analysis?

What are your thoughts on this?

Kind Regards

Nils

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0 Kent West over 7 years ago

Hi Nils,

Yes: the typical way to do this is to simulate the dynamic model until it's in a configuration of interest, then linearize at that point and inspect the mode shapes. You can repeat for different configurations that you reach from dynamic analyses.

The 'next step' here is to use Adams/Vibration on the linearized models and apply/measure inputs/outputs in the frequency domain..

HTH,

Kent
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0 Kent West over 7 years ago

Hi Nils,

Yes: the typical way to do this is to simulate the dynamic model until it's in a configuration of interest, then linearize at that point and inspect the mode shapes. You can repeat for different configurations that you reach from dynamic analyses.

The 'next step' here is to use Adams/Vibration on the linearized models and apply/measure inputs/outputs in the frequency domain..

HTH,

Kent
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