Title: Stator vibration analysis of in-wheel motor for electric vehicle based on harmonic response analysis method
Authors: Qiping Chen; Xuanjun Huang; Hao Shao; Junling Ding; Zhihui Xu
Addresses: Key Laboratory of Vehicle and Equipment, Ministry of Education, East China Jiaotong University, Nanchang 330013, China; Nanchang Key Laboratory of New Energy Vehicles, East China Jiaotong University, Nanchang 330013, China ' Key Laboratory of Vehicle and Equipment, Ministry of Education, East China Jiaotong University, Nanchang 330013, China; Nanchang Key Laboratory of New Energy Vehicles, East China Jiaotong University, Nanchang 330013, China ' Key Laboratory of Vehicle and Equipment, Ministry of Education, East China Jiaotong University, Nanchang 330013, China; Nanchang Key Laboratory of New Energy Vehicles, East China Jiaotong University, Nanchang 330013, China ' Key Laboratory of Vehicle and Equipment, Ministry of Education, East China Jiaotong University, Nanchang 330013, China ' Key Laboratory of Vehicle and Equipment, Ministry of Education, East China Jiaotong University, Nanchang 330013, China; Nanchang Key Laboratory of New Energy Vehicles, East China Jiaotong University, Nanchang 330013, China
Abstract: In order to effectively reduce the vibration and noise of in-wheel motor for electric vehicle, the radial electromagnetic force wave of in-wheel motor under load is decomposed by Fourier transform, and the results are obtained. The radial electromagnetic force wave has large harmonic amplitude and wide frequency distribution. Finally, the free mode and harmonic response of three different stator configurations are analysed. The results show that: under the action of the radial force wave, the maximum deformation of the stator without cooling channel is 6.639e-5 mm, the maximum deformation of the stator with radial cooling channel is 5.8224e-5 mm, and the maximum deformation of the stator with axial cooling channel is 6.864e-5 mm. The deformation is very small, and there will be no friction and collision between the stator and the rotor during the operation of the in-wheel motor.
Keywords: electric vehicle; in-wheel motor; radial force wave; harmonic vibration.
DOI: 10.1504/IJVNV.2022.125603
International Journal of Vehicle Noise and Vibration, 2022 Vol.18 No.1/2, pp.61 - 76
Received: 02 Apr 2021
Accepted: 16 Dec 2021
Published online: 16 Sep 2022 *