Pull-in & release analysis

- December 13, 2019 at 1:32 pm
  
  sach23
  Subscriber
  
  Hi,
  
  I want to simulate pull-in and release behaviour of an electrostatic actuator using TRANS126 element. Since TRANS126 works only with nodal coordinate system, therefore, it is dependent on the no. of nodes/mesh density. Also, the electrostatic force and capacitance depend upon the no. of elements which will always be relative to the mesh density.
  
  I have performed this analysis and extracted the nodal force and capacitance data which is relative to the mesh density. Not to mention, the pull-in voltage is also relative to mesh density.
  
  My question is, how to find a perfect balance between mesh density and Pull-in voltage/electrostatic force and capacitance data.
  
  A circular plate with 30um thickness is used as the geometry.
  
  Please find attached the solve.out file.
  
  I am using workbench 19.0
- December 16, 2019 at 1:47 pm
  
  Aniket
  Ansys Employee
  
  I am not an expert in this area, but just so you know, ANSYS employees are not allowed to download anything from the student portal, so your best bet for getting a response from ANSYS staff is to include your attachment as an inline image or texts. Otherwise, you can wait for other members (who can download the attachments).
  
  -Aniket
  
  Guidelines on the Student Community
  
  How to access ANSYS help links
- December 16, 2019 at 2:15 pm
  
  peteroznewman
  Subscriber
  
  I will add that the contents of the solve.out text file will not help us to answer your question.

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