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Error in stationary study

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Hai All....
I am trying to analysis capacitive microphone using perforated diaphragm by COMSOL 4.3. Using Electromechanics physics.But while doing stationary study, the following error shows up**,which I understand is usually due to poorly formed boundary conditions.
How can I form boundary condition to have comsol complete this simulation.??
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The error is**
Failed to find solution.
segregated group1.
singular matrix

There are 21399 void equation(empty rows in matrix) for variable mod1.u at coordinates:(0.0002665,0.0005,1e-006),(0.00026524,0.0005,1e-0006),(0.00026519,0.0005,0),......

and similarly for degree of freedom(empty columns in matrix)
Return solution is not converged.
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Thank you......


0 Replies Last Post 2014年6月9日 GMT-4 03:14
COMSOL Moderator

Hello Krishnapriya N J

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