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What (multi)physics to use for electromagnetic actuator?
Posted May 10, 2023, 12:09 p.m. EDT Electromagnetics, MEMS & Piezoelectric Devices, Physics Interfaces 0 Replies
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Hi,
I want to model the deflection and heat development of an electrostatic actuator following this example: https://iopscience.iop.org/article/10.1088/1361-6439/aa7970
The idea is to model a current carrying wire / thin metallic conductor beam in a permanent magnetic field. The lorentz force acting on the fire should push it in the direction perpendicular to the magnetic field and the electric current. Now I want to find out with COMSOL how much current I have to apply to get to a certain deflection and by how many degrees the wire would heat up with such current etc.
I am quite new to working COMSOL and so far I haven't found out which physics / multiphysics I have to use in my model. I started with a very simple geometry of a short gold wire in an air environment. For the physics I added Electric Currents, Magnetic Fields, Solid Mechanics and Heat Transfer. However I don't seem to get the expected result.
Does someone have experience with this?
Thank you.
Best,
Julian
Hello hejulian
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