Abstract
In the design process of the permanent magnetic bearing, the calculation of the magnetic force between the magnetic rings is an important element. Transforming complicated physical problems into mathematical problems by establishing the mathematical model of the magnetic ring is a common method when calculating the magnetic force. In this paper, the equivalent magnetic charge model of a permanent magnet bearing is established by the former’s magnetic charge viewpoint, and the quadratic integral based on this model is solved by the integral definition method. This paper compares the results of integral definition method with those obtained by Monte Carlo method and ANSYS in order to verify the correctness.
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