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Mesh & Tolearance question for fixed bridge design

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Hi,

I design a two side fixed bridge. The bridge length = 7mm, bridge width = 1mm, bridge height = 1um. I want to get a plot for displacement vs frequency. Right now I have two problems with these geometry. Firstly, it takes half hour to mesh the structure. If I use less fine, it turns out an error that I have to use extremely fine to mesh it. Once I get resonant frequency by using eigenfrequency study, I can set up the range for frequency domain study. If I set up the range to big, I will get an error said relative tolerance is smaller than the error or something related to tolerance. If I increase the tolerance, my plot won't be accurate. Does some one know how to fix these two problems?

0 Replies Last Post May 27, 2015, 12:01 p.m. EDT
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Hello Wenyuan Zhu

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