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December 5, 2024 at 2:02 pm
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December 5, 2024 at 2:55 pm
Erik Kostson
Ansys EmployeeHi
‘I guess the max deformation in the model is 1.1895″, when the Natural Frequency is 87.653Hz, Am I right or not?’
Yes that is correct, 87.653 Hz is the natural frequency of this natural mode – but have in mind that the displacement values (1.1895 here say) for that frequency/mode are normalized/scaled eigen vectors/modes. So the absolute/exact values (1.1895 inch) are not of importance. See here for discussion on this: https://innovationspace.ansys.com/forum/forums/topic/unrealistically-large-deformation-modal-analysis/
The absolute/actual value of the displacement/stress is only meaningful when we apply a force later in a harmonic analysis say, and look at the actual response of this structure due to this force.
For all these details see our free courses on modal and dynamic analysis:
https://innovationspace.ansys.com/product/modal-analysis-in-ansys-mechanical/
https://innovationspace.ansys.com/product/intro-to-modal-based-methods/
All the best
Erik
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