Research on equivalent model of forming test for stator coils of permanent magnet traction motors

Gangyan Li; Juncheng Zhang; Ao Hu; Weiye Li; Jun Xu

doi:10.1117/12.3046701

27 September 2024 Research on equivalent model of forming test for stator coils of permanent magnet traction motors

Gangyan Li, Juncheng Zhang, Ao Hu, Weiye Li, Jun Xu

Proceedings Volume 13261, Tenth International Conference on Mechanical Engineering, Materials, and Automation Technology (MMEAT 2024); 1326105 (2024) https://doi.org/10.1117/12.3046701
Event: 10th International Conference on Mechanical Engineering, Materials, and Automation Technology (MMEAT 2024), 2024, Wuhan, China

Abstract

In response to the requirements for equivalent testing of the expansion of stator coils in permanent magnet traction motors, an alternative method for calculating the dimensions and loading conditions of equivalent specimens is proposed. Numerical simulation analysis is conducted on the bending forming process of both the stator coil and the equivalent specimen. Based on the Ramberg-Osgood model, an elastic-plastic equivalent strain ratio coefficient (λ) is introduced to describe the proportion of forming elastoplasticity to the total strain. The results indicate that the mean deviation of λ for the two corresponding forming methods is 2.03%, with a maximum deviation not exceeding 8.05%. By comparing the springback values of the actual produced stator coils with the numerical simulation results of the equivalent specimens, the feasibility of the elastoplastic theory and the validity of the equivalent model are verified.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Gangyan Li, Juncheng Zhang, Ao Hu, Weiye Li, and Jun Xu "Research on equivalent model of forming test for stator coils of permanent magnet traction motors", Proc. SPIE 13261, Tenth International Conference on Mechanical Engineering, Materials, and Automation Technology (MMEAT 2024), 1326105 (27 September 2024); https://doi.org/10.1117/12.3046701

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