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      Please click here for a short but important announcement   03/26/17

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alekh

Doubts regarding Free Free analysis

Question

I am doing a free free analysis i.e. performing normal mode without any constraints. I have observed that after first 6 rigid modes, model shows deformation. I want to know what causes this deformation? I mean if it is unconstrained then why at all it is deforming  

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1 answer to this question

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Your analysis is correct. It's not really "deformation" due to fixations & external loading, but you got different vibration modes.

 

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