How to have an axial load in modal analysis

[HosseinAgha]

Hi,I want to have axial load in a modal analysis but I can't do that because the Force option is gray.
Thanks in advance for any help

 

[Drej]

Take a look at "Pre-stressed Modal Analysis" in the manual.


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See faq569-1083 for details on how to make best use of Eng-Tips.com

 

[FEAdesserve]

Do a static analysis using an axial load first. Then use the pre stress analysis to calculate modal analysis results.
If you use workbench, then add a structural environment using axial load. On the solution tab, right click and then choose "transfer data to new modal analysis" then conduct the modal run.

Raj

 

[HosseinAgha]

Thanks a lot Drej and FEAdesserve.