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Singular matrix.

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I try to modeling a model of capacitive pressure sensor (MEMS sensor COMSOL version 3.3a) to a new COMSOL version 4.2, when I try to solving I get this problem (Feature : stationary solver 1 sol1/s1 ).

Failed to find a solution for the initial parameter.
Segregated group 2

Singular matrix.

There are 2582 void equations (empty rows in matrix) for the variable mod1.T2
at coordinates: (0.00175,0.001), (0.002,0.001), (0.00225,0.001), (0.00185701,0.00095885), (0.0025,0.001), ...
and similarly for the degrees of freedom (empty columns in matrix)
Returned solution is not converged.

Thanck you in advance.


0 Replies Last Post 12 apr 2012, 11:59 GMT-4
COMSOL Moderator

Hello Salah Amine

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