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This paper presents a computation method for analyzing the impact torque characteristics of a new noncontact electromagnetic impact mechanism employing our 3-D FEM code. In this method, magnetic field analysis is coupled with electric circuit analysis and motion analysis. The operating principle of this mechanism is described, and torque performances are shown. The validity of the analysis is verified...
Side-magnetism brake single-phase induction motor (SBSIM) has founded made application in electric tools where power-off brake is needed. The axial magnetic brake force is analyzed theoretically and calculated in this paper, which is verified by the three-dimensional finite element method (3-D FEM), firstly. Then the flux density distributions in different air gap positions at rated load and no load...
This paper reports efficiency improvement of a doubly salient-pole homopolar machine with powder iron core. Powder iron core is composed of the metal magnetization powder with resin. It has advantages of low cost, isotropic magnetic property for three dimensions, a high flexibility of design, and low eddy-current loss at high frequency. This paper shows characteristics and performance comparisons...
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