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- W2897884048 abstract "With the high speed, the rotor of magnetically suspended permanent magnet synchronous motor (MSPMSM) suffers great thermal stress and mechanical stress resulting from the temperature rise problem caused by rotor losses, which leads to instability and inefficiency. In this paper, the mechanical–temperature field coupling analysis is conducted to analyze the relationship between the temperature field and structure, and multi-objective optimization of a rotor is performed to improve the design reliability and efficiency. Firstly, the temperature field is calculated by the 2D finite element model of MSPMSM and the method of applying the 2D temperature result to the 3D finite element model of the motor rotor equivalently is proposed. Then the thermal–structure coupling analysis is processed through mathematic method and finite element method (FEM), in which the 3D finite element model is established precisely in a way and approaches the practical operation state further. Moreover, the impact produced by the temperature and structure on the mechanical strength is analyzed in detail. Finally, the optimization mathematical model of the motor rotor is established with Sequential Quadratic Programming-NLPQL selected in the optimization scheme. Through optimization, the strength of the components in the motor rotor increases obviously and satisfies the design requirement, which to a great extend enhances the service life of the MSPMSM rotor." @default.
- W2897884048 created "2018-10-26" @default.
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- W2897884048 date "2019-07-01" @default.
- W2897884048 modified "2023-10-12" @default.
- W2897884048 title "Thermal–structure coupling analysis and multi-objective optimization of motor rotor in MSPMSM" @default.
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- W2897884048 doi "https://doi.org/10.1016/j.cja.2018.09.008" @default.
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