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Undefined value found error
Posted 16 giu 2015, 11:18 GMT-4 MEMS & Nanotechnology, MEMS & Piezoelectric Devices Version 5.2 2 Replies
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I'm trying to simulate a cantilever MEMS switch and only have two materials, gold and air. Until the 18.5 V I dont have any problems but when I increase it I get this error:
Undefined value found.
- Detail: Undefined value found in the equation residual vector.
There are 245 degrees of freedom giving NaN/Inf in the vector for the variable x.
at coordinates: (2.91337e-005,6.46741e-006,2.5e-006), (2.95669e-005,6.71759e-006,2.5e-006), (3e-005,6.96778e-006,2.5e-006), (2.91337e-005,5.46666e-006,2.5e-006), (2.95669e-005,5.71684e-006,2.5e-006), ...
There are 245 degrees of freedom giving NaN/Inf in the vector for the variable y.
at coordinates: (2.91337e-005,6.46741e-006,2.5e-006), (2.95669e-005,6.71759e-006,2.5e-006), (3e-005,6.96778e-006,2.5e-006), (2.91337e-005,5.46666e-006,2.5e-006), (2.95669e-005,5.71684e-006,2.5e-006), ...
There are 245 degrees of freedom giving NaN/Inf in the vector for the variable z.
at coordinates: (2.91337e-005,6.46741e-006,2.5e-006), (2.95669e-005,6.71759e-006,2.5e-006), (3e-005,6.96778e-006,2.5e-006), (2.91337e-005,5.46666e-006,2.5e-006), (2.95669e-005,5.71684e-006,2.5e-006), ...
Can someone please help me? It's really frustrating. What am I doing wrong?
Hello Ali Mojdeh
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please what are you doing to resolve this problem !!
it looks like the same
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This is not an actual error. When you reach the pull in voltage, the switch will hit the substrate so COMSOL cannot find a solution and returns error.
Best