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Analysis of the stator magnetic properties of an aerospace axial flux motor considering the thermal stress of material lamination
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Analysis of the stator magnetic properties of an aerospace axial flux motor considering the thermal stress of material lamination
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Journal Article
Analysis of the stator magnetic properties of an aerospace axial flux motor considering the thermal stress of material lamination
2025
Overview
As the main structure of the all-electric aircraft, the drive motor is required to have the advantages of high power density and high reliability. Due to the low temperature and strong convection environment during the flight, the environmental temperature of the motor is low, but the temperature rise of the motor is high, and the temperature variation range of the stator material is large. Especially, the segmented stator is close to the winding coil of the motor, and the influence of thermal stress on the material cannot be ignored. In this paper, an axial flux motor is used as the design background, and the temperature and thermal stress of silicon steel with two orientations are simulated and calculated. The magnetic properties of the material were analyzed by a multi-physical field coupling test platform, and the external stress caused by a single variable temperature and different expansion coefficients of the potting material and the thermal stress in the silicon steel sheet caused by rapid temperature change were studied. The results show that the potting material with a low expansion coefficient, good thermal conductivity, and high hardness can effectively perfect the thermal stress of the iron core.
Publisher
IOP Publishing
