Menu

Discussion Forum

New Discussion
Filter

Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.

Natural frequency Disappearing. need help

Posted Feb 20, 2014, 2:44 a.m. EST Geometry, Results & Visualization, Structural Mechanics 1 Reply

Jayesh S
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

I was doing modal analysis of PCB board . I have done for full model, half model and quarter model. But some of the natural frequencies in the full model is disappearing in the half model and some more in quarter model.

Is there any article regarding this subject?

Any reasons available?
Will this affect for my analysis?

Regards,
Jayesh S
1 Reply Last Post Feb 20, 2014, 10:01 a.m. EST
Edgar J. Kaiser Certified Consultant
Send Private Message Flag post as spam

Please login with a confirmed email address before reporting spam

Posted: 1 decade ago Feb 20, 2014, 10:01 a.m. EST
Jayesh,

the modes of the model may not share the symmetries of the geometry.

Cheers
Edgar

--
Edgar J. Kaiser
emPhys Physical Technology
www.emphys.com
Jayesh, the modes of the model may not share the symmetries of the geometry. Cheers Edgar -- Edgar J. Kaiser emPhys Physical Technology http://www.emphys.com

Note that while COMSOL employees may participate in the discussion forum, COMSOL® software users who are on-subscription should submit their questions via the Support Center for a more comprehensive response from the Technical Support team.

Suggested Content