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Solution Not Converging - Simple Cantilever Switch Pull In Voltage Calculation error

Posted 2013年7月3日 GMT-4 10:51 MEMS & Nanotechnology, RF & Microwave Engineering, MEMS & Piezoelectric Devices, Studies & Solvers Version 4.2a 0 Replies

Sarath Gopalakrishnan
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Hi, I am trying to simulate a simple switch with a cantilever beam, an oxide anchor and a substrate. My aim is to find out the pull in voltage of the switch. I used the tutorial "biased_resonator_2d_pull_in" from MEMS module>Actuators. I went through many forums and based on some suggestions given there, I tried changing the initial conditions of dependent variable and mesh refinement. Nevertheless, I could not obtain the required graph which shows the pull in voltage. While playing around with the parameters already mentioned, these were the errors that I got.

1. "Returned solution is not converged"
2. "NaN or Inf found when solving linear system using SOR"

Please help if anyone has succeeded in figuring out how to calculate the pull in voltage of MEMS switches with COMSOL.
Thanks in advance.
0 Replies Last Post 2013年7月3日 GMT-4 10:51
COMSOL Moderator

Hello Sarath Gopalakrishnan

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