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[Cheerla_ganesh]

Hi all

I'm running a modal Analysis, I have fixed at some bolting locations where motor is mounting, i have extracted 10 modes

but my first mode i was getting 0Hz.

In the motor i have modelled bearing by adding Stiffness using contacts.

But why first frequency is 0 HZ

Could you please help me in this

[jonsoln]

A 0Hz mode means rigid body motion. You need to double check your connections and boundary condition. The deformation plot should show you which part and in which direction it is moving.

[Aniket]

Thanks ! You are absolutely right! Animating first mode deformation results along with the details will provide which body is underconstrained.
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[Cheerla_ganesh]

Thanks a lot clearing the doubt,I have got the result