In order to analyze the impact of various material properties on the electromagnetic needle selector,this paper uses the electromagnetic simulation module in COMSOL to establish a simulation model for the electro-magnetic needle selector,and analyzes the impact of different permanent magnet materials,iron core materials,and coil turns on the dynamic response process of the needle selector.The simulation results show that with different residual magnetic flux and coercive force of permanent magnets,the larger the residual magnetic flux and coercive force,the greater the holding torque,and the faster the swing in place time;the greater the relative permeability of the iron core material,the greater its holding torque,and the faster the swing in place time;the more turns of the coil,the greater its holding torque,and the faster the swing in place time.
维普
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