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为避免电动飞机飞行中主推进电机受多重载荷作用而可能导致强度不足的问题,通过对永磁同步电机强度进行分析,研究了定子与机壳之间的过盈配合方法。利用有限元软件分别对爬升阶段与巡航阶段电动飞机主推进电机定子与机壳和端盖强度特性进行仿真,分析了支撑筋宽度对电机强度的影响。研究结果表明,优化电机结构可满足机械强度要求,能减轻电机整机重量。
In order to avoid the problem that the main propulsion motor may suffer from insufficient strength when the main propulsion motor is in electric aircraft flight, the method of interference fit between the stator and the casing is studied by analyzing the strength of the permanent magnet synchronous motor. The finite element software is used to simulate the strength characteristics of the main propulsion motor stator, the shell and the end cap of the electric propulsion aircraft during the climb phase and the cruise phase. The influence of the strut width on the motor strength is analyzed. The results show that optimizing the motor structure to meet the mechanical strength requirements, can reduce the weight of the motor machine.