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free-free vibrations v.s F.E. softwares

mohamedlamine's picture

Hi All,

Do you know why some finite element softwares can not solve free-free vibrations of many applications unless you fix at least one degree of freedom ?

In this case I do not see how they are able to analyze free-free structures as planes.

 

Mohammed Lamine 

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ali.asgari.tabari's picture

 you can do this matter with ansys workbench ,

you can find similar examples in youtube about free-free vibrations,

i have experience to work with ansys workbench to find 1st till 6th dofs of cranckshaft. 

if you want i can help you .

best,

ali asgari 

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