June 24, 2020 at 9:15 amantoninliuSubscriber
I am using Mechanical APDL for modal analysis. I'd like to extract stress information but it seems that the results from modal analysis are all DOF solutions. Can anyone help to explain how to get stress solutions please? Thanks a lot and best regards!
June 29, 2020 at 11:45 amAniketAnsys Employee
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June 29, 2020 at 12:19 pmpeteroznewmanSubscriber
Modal analysis is only for obtaining modal frequencies and mode shapes. These are calculations on the structure. There was no load applied to the structure so there is no stress.
To get stress from a vibrating structure, input the amplitude of a periodic load in a Harmonic Response analysis. That can take the solution of the Modal analysis to use the Modal Superposition method to solve the Harmonic Response problem.
June 29, 2020 at 12:29 pmantoninliuSubscriber
Thanks for your explanation. I just tried Harmonic analysis, it works well.
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