Comparative Analysis of Vibration and Noise of Axial Flux Motor with Different Pole and Slot Combinations*

doi:10.23919/CJEE.2023.000036

Chinese Journal of Electrical Engineering ›› 2023, Vol. 9 ›› Issue (4): 144-156.doi: 10.23919/CJEE.2023.000036

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Comparative Analysis of Vibration and Noise of Axial Flux Motor with Different Pole and Slot Combinations^*

Qixu Chen^1,2, Zhizhong Chen^1,2, Guoli Li^1,2,*, Dechen Wu^1,2, Peng Li^1,2

1. School of Electrical Engineering and Automation, Anhui University, Hefei 230601, China;
2. National Engineering Laboratory of Energy-Saving Motor & Control Technology, Anhui University, Hefei 230601, China

Received:2023-05-06 Revised:2023-07-14 Accepted:2023-09-01 Published:2024-01-08
Contact: *E-mail: liguoli@ahu.edu.cn
About author:Qixu Chen received the B.S. degree in Mechatronic Engineering from North University of China, Taiyuan, in 2007, and M.S. degree in Mechatronic Engineering from Xidian University, Xi'an, China, in 2010, and the Ph.D. degree in Electrical Engineering from Xi'an Jiaotong University, Xi'an, China, in 2020. Since 2020, he has been a Lecturer with Anhui University, Hefei. His research interests include axial-flux machine design, motor control, and wireless power transfer.
Zhizhong Chen received the B.S. degree in Electrical Engineering and Automation from the Anhui Polytechnic University of China, Wuhu, in 2019. He is currently pursuing a master's degree at the School of Electrical Engineering and Automation, Anhui University, Hefei, China. His research interests include vibration and noise in motors, and wireless power transfer.
Guoli Li received the Ph.D. from the Hefei Institute of Physical Sciences, Chinese Academy of Sciences, Hefei in 2006. She worked as a Lecturer and Professor with Hefei University of Technology, Hefei, China, from 1983 to 2007 and with Zhejiang University of Technology, Hangzhou, China, from 2007 to 2010. She is currently a Professor and Doctoral Supervisor with Anhui University, Hefei, China. Her research interests include motor optimization and robotics.
Dechen Wu was born in Wuhu, Anhui, China, in 1997. He is currently pursuing a master's degree at the School of Electrical Engineering and Automation, Anhui University, Hefei, China. His research interests include vibration and noise in axial-flux motors.
Peng Li received the B.S. degree in Electrical Engineering and Intelligent Control from the Anhui University of Science and Technology, Huainan, in 2022. He is currently pursuing a master's degree at the School of Electrical Engineering and Automation, Anhui University, Hefei, China. His research interests include wireless power transfers.
Supported by:
* Key Project of the China National Natural Science Foundation under Projects 51637001, Open Fund for National Engineering Laboratory of Energy-Saving Motor & Control Technology, Anhui University (KFKT202101), and Scientific Research Project Supported by Education Department of Anhui Province (KJ2021A0014).

Abstract

Abstract: The electromagnetic vibration noise in axial flux motors was meticulously examined. In this study, 24-slot/10-pole and 12-slot/10-pole axial flux motors were chosen as the subjects of research. The spatial characteristics of the axial electromagnetic force were derived analytically and confirmed via two-dimensional Fourier decomposition. The finite-element method was used to simulate the low-order axial modes of both motors. Furthermore, a modal experiment on the stator of a 24-slot/10-pole axial flux motor was conducted to validate the simulation's accuracy. By integrating the electromagnetic and structural models, a comprehensive multi-physical field model was developed to calculate the vibration noise of the axial flux motor. The precision of this model was subsequently corroborated with noise experiments. The findings from this study aim to offer insights into identifying the sources of vibration noise in axial flux motors.

Key words: Axial electromagnetic force, vibration, noise, axial flux motors, modal analysis

Qixu Chen, Zhizhong Chen, Guoli Li, Dechen Wu, Peng Li. Comparative Analysis of Vibration and Noise of Axial Flux Motor with Different Pole and Slot Combinations^*[J]. Chinese Journal of Electrical Engineering, 2023, 9(4): 144-156.

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Comparative Analysis of Vibration and Noise of Axial Flux Motor with Different Pole and Slot Combinations^*

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