Very-High-Speed Permanent Magnet Motors: Mechanical Rotor Stresses Analytical Model

In the context of the development of a 500’000 rpm miniaturized permanent magnet motor, a 3D analytical model for the assessment of mechanical stresses is presented. The significant mechanical stresses and thermal constraints encountered at such speeds are limiting factors, especially for the permanent magnets. The model, taking into account the axial stress component and the temperature, can be used for fast multiphysics designs. It has been validated by FEM at several temperatures, geometries and speeds with low a error. The model is finally combined with an analytical electromagnetic model to illustrate the interactions with a motor.


Published in:
Proceedings of the 2017 IEEE International Electric Machines and Drives Conference (IEMDC)
Presented at:
2017 IEEE International Electric Machines and Drives Conference (IEMDC), Miami, FL, USA, May 21-24, 2017
Year:
2017
Keywords:
Laboratories:




 Record created 2017-10-01, last modified 2018-03-17


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