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Applying magnetic field (created by electromagnet) on permanent magnet to observe displacement versus frequency

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Hello everyone I have a coil which is placed underneath of a plate and inside a plate, there is a permanent magnet. I want to create a magnetic field to affect the permanent magnet, hence I considered magnetic field (mf) and sloid mechanics physics to solve it. In magnetic field physics I considered coil geometry and in solid mechanics physics I considered boundary load on one side of a plate. What I am trying to do is that I want to apply magnetic field on my sample and also excitation source (as a boundary load) simultaneously and observe the frequency response of my sample.

In my study I considered three steps as follow: 1-coil geometry analysis 2-stationary 3-frequency domain I check a box in step 3 for using the previous results and I want to plot displacement versus frequency (measure the other side of plate) to see the affect of magnetic field on permanent magnet. When I run my simulation, it shows me the error as follow: ‘’There was an error message from the linear solver. The relative residual (1) is greater than the relative tolerance. There were 5 warning messages from the linear solver.’’ I can change relative tolerance but it does not work (as far as I know the value should not be more that 1) Also, I attached my file below in case anyone wants to look at it. I would be happy if you can help me out. Thank you so much



0 Replies Last Post 11.05.2022, 16:11 GMT-4
COMSOL Moderator

Hello Majid Kheybari

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