Transactions of Materials and Heat Treatment

Title：Influence of structure parameters of dovetail-shaped magnetic isolation device on torque of permanent magnet torque motor for forging equipment

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ClassificationCode：TM341

year,vol(issue):pagenumber：2023,48(10):207-214

Abstract：

In order to further improve the torque performance of permanent magnet torque motors and enhance the magnetic stability of surface-mounted permanent magnets, a new dovetail-shaped magnetic isolation device (DMID) structure was discussed. First, the initial model of motor was constructed, and the structure of DMID was designed parametrically. Second, based on the equivalent magnetic circuit model of motor and the principle of electromagnetic torque generation, a mathematical model of average torque and torque ripple considering the DMID structure was established. Then, with the help of finite element simulation tool ANSYS Maxwell, taking the average torque as the optimization target, different slot widths, inner circle radiuses and positions of DMID were simulated and analyzed, and their changing rules were discussed. Finally, the average torque and torque ripple of the optimized motor and the initial motor were compared and analyzed. The results show that when the optimal structure parameters of DMID are selected, the average torque is increased by 37.2 N·m, and the torque ripple is weakened by 0.04%.

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胡豁达（1999-），女，硕士研究生 E-mail：slxxhhd@sina.com

Reference：

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