This case study obtains electromagnetic force acting between a coil and magnet using the electromagnetic force calculation correction method and the adaptive mesh function. By additionally using electromagnetic force calculation correction methods, it is possible to obtain the electromagnetic force acting between parts that would otherwise be difficult to calculate. If a solenoid needs to be selected for a new application on the basis of existing specifications regarding stroke and magnetic force, the calculated nominal. In circumstances such as these, the adaptive mesh function can be used to again subdivide mesh from air region error distribution, and mesh that obtains a high analysis accuracy can be generated. Moreover, in an analysis model where the magnetic circuit extends into the air region, it is necessary to use a sufficiently fine mesh over a large region since obtaining an accurate magnetic field distribution in the air region is directly related to electromagnetic force computation accuracy. Therefore, it is important to ascertain the magnetic and electromagnetic forces acting on parts. The Hall coefficient (R H) is a characteristic of a conductor’s material, and is defined as the ratio of induced electric field (E y) to the product of current density (j x) and applied magnetic field (B): (21.5.2) R H E y j x B V H t I B 1 n e. With the miniaturization of electrical equipment, even effects from very small interactions are a concern. In this formula, e represents the elementary charge. Motor Design Tool : JMAG-Express Online.
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