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How to simulate Mechanical modes with specified symmetries?
Posted Feb 10, 2011, 12:11 p.m. EST Version 3.5a 1 Reply
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Hi, All,
For a long beam, if the ends of the beam are fixed. We can get a lot of modes with different symmetris. How can we simulate only with some specified symmetris?
For example: the beam with length x=10um, thickness z=0.25um, width y=0.25um. Centered at the origin. both end are fixed. How can we simulate the modes with x-even symmetry: u(x)=u(-x), v....? Can we make it only by set symmetries in some internal boundaries? or by using some coupling variables? or ...
Thanks in advance.
Best,
Jzhj
For a long beam, if the ends of the beam are fixed. We can get a lot of modes with different symmetris. How can we simulate only with some specified symmetris?
For example: the beam with length x=10um, thickness z=0.25um, width y=0.25um. Centered at the origin. both end are fixed. How can we simulate the modes with x-even symmetry: u(x)=u(-x), v....? Can we make it only by set symmetries in some internal boundaries? or by using some coupling variables? or ...
Thanks in advance.
Best,
Jzhj
1 Reply Last Post Feb 11, 2011, 2:42 p.m. EST
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Posted:
1 decade ago
It is solved. Before I am using the hole structure with internal boundaries as symmetry planes. However, this can generate more modes than expected. The solution is simply using only the small part with external boundaries as symmetry panes.