Note: This discussion is about an older version of the COMSOL Multiphysics® software. The information provided may be out of date.
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.
How do you know which resonant frequency of the cantilever is the proper one?
Posted Oct 12, 2012, 10:55 AM EDT Structural Mechanics & Thermal Stresses Version 4.2, Version 4.2a, Version 4.3 5 Replies
I'm quite confused. It's a rectangular beam,with one end fixed. Then I do the eigenfrequency study. When I apply different mesh method to the beam, for example, first I use Free Tetrahedral mesh to simulate.Then,in the second study, I use Free Triangular mesh on the bottom boundary and swept the whole domain. The difference of the resonant frequency between two study is about 70000Hz. Is this usual? The resonant frequency of the cantilever with same size and material should be the same right?
Thanks a lot. Looking forward to your reply.