Do you have an example demonstrating the use of magnetic contact elements in which the air gap mesh is entirely eliminated and effectively replaced by using the MCC (permeance) real constant?


Attached are 2 input files. One creates a permanent magnet model and keeper immersed in a contiguous air mesh, the other has a modestly large void in the mesh where magnetic contact elements are used with keyopt(2)=0 and MCC=mu0/gap. The resulting calculated B fields compare quite well.

Note: it is easy to overlook the fact that one must set KEYOPTION(2)=0 (otherwise the contact will use MPC and ignore the MCC real constant value).





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