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Geometrical Optimization

Posted Sep 20, 2023, 7:42 a.m. EDT Optimization Version 6.1 1 Reply

Feyza Pirim
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Hello everyone,

I am working on geometrical optimization at the COMSOL 6.1. I have a 2D geometry with roller constrained under constant magnetic field. I have magnetomechanical forces coupling at multiphysics. I want to optmize my geometry in a way that applied force of it under magnetic field is minimized in x-direction. For this purpose, I define each length of my geometry as a parameter. I try to use Nelder-Mead optimization but each time optimization gives the initial parameters as the best one. Could you help me with this ?

Thank you for your help.

Kind regrads

1 Reply Last Post Sep 22, 2023, 7:42 a.m. EDT
Kristian Ejlebjærg Jensen COMSOL Employee

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Posted: 1 year ago Sep 22, 2023, 7:42 a.m. EDT

Hi Feyza

Have you scaled the objective and controls appropriately? Have you verified that the objective is sensitive to the controls (using a Parametric Sweep)?

If you can answer yes to these questions, I suggest you contact comsol.com/support

Best Regards,

Kristian E. Jensen

Technical Product Manager, Optimization

Hi Feyza Have you scaled the objective and controls appropriately? Have you verified that the objective is sensitive to the controls (using a Parametric Sweep)? If you can answer yes to these questions, I suggest you contact comsol.com/support Best Regards, Kristian E. Jensen Technical Product Manager, Optimization

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