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文章以某型号新型高速动车组牵引电机为研究对象,分别建立了二维电磁仿真模型和全计算域三维流固耦合仿真模型,基于磁热耦合方法实现了电磁场损耗分布向流体仿真模型的映射,并作为热源参与电机流场和温度场的计算。通过与试验数据对比分析,验证了磁热耦合计算方法的准确性。同时,对该电机流体流动特性和温度分布进行了分析,表明该通风冷却结构设计合理,满足车辆运行使用要求。
In this paper, a new type of high-speed EMU traction motor is taken as the research object. Two-dimensional electromagnetic simulation model and full computational domain three-dimensional fluid-solid coupling simulation model are established respectively. The mapping of electromagnetic field loss distribution to fluid simulation model is realized based on the magnetocaloric coupling method. And as a heat source involved in the motor flow field and temperature field calculation. By comparing with the experimental data, the accuracy of the calculation method of magnetocaloric coupling was verified. At the same time, the fluid flow characteristics and temperature distribution of the motor were analyzed, indicating that the ventilation and cooling structure is designed to meet the requirements of vehicle operation and use.