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Volume 14
Issue 7
10.3390/act14070344
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This is an early access version, the complete PDF, HTML, and XML versions will be available soon.
Article

Dynamic Study on a Passive Damping Scheme for Permanent Magnet Electrodynamic Suspension Vehicle Utilizing Onboard Magnets End Effects

by
Shanqiang Fu
1,2,3,
Mingang Chi
2,
Anqi Shu
2,
Junzhi Liu
4,
Shuqing Zhang
2,
Hongfu Shi
5 and
Zigang Deng
2,5,*
1
State Key Laboratory of High-speed Maglev Transportation Technology, Qingdao 266111, China
2
State Key Laboratory of Rail Transit Vehicle System, Southwest Jiaotong University, Chengdu 610031, China
3
CRRC Qingdao Sifang Company Ltd., Qingdao 266111, China
4
Guizhou Aerospace Linquan Motor Co., Ltd., Guiyang 550008, China
5
Research Center for Super-High-Speed Evacuated Tube Maglev Transport, Southwest Jiaotong University, Chengdu 610031, China
*
Author to whom correspondence should be addressed.
Actuators 2025, 14(7), 344; https://doi.org/10.3390/act14070344
Submission received: 6 May 2025 / Revised: 3 July 2025 / Accepted: 4 July 2025 / Published: 11 July 2025
(This article belongs to the Special Issue Actuators in Magnetic Levitation Technology and Vibration Control)
Review Reports Versions Notes

Abstract

The permanent magnet electrodynamic suspension system (PMEDS) has demonstrated significant advantages in high-speed and ultra-high-speed applications due to its simple structure, low cost, and stable levitation force. However, the weak damping characteristic remains a critical issue limiting its practical implementation. This work investigates a passive damping plate utilizing the end field of onboard magnets, focusing on magnet-damping plate optimization and vehicle dynamics. Firstly, the configuration, operation principles, and electromagnetic parameters of the PMEDS vehicle are elucidated. Secondly, the dependences of magnet-conductive plate specifications on the damping force are examined. An optimization index based on the levitation-to-damping force ratio is proposed to enable collaborative optimization of magnet and conductive plate parameters. Finally, the vehicle dynamic model is developed using Simpack software to investigate payload and speed effects on dynamic responses under random track excitation, validating the effectiveness of the proposed passive damping solution. This study provides technical references for the design, engineering applications, and performance evaluation of passive damping schemes in PMEDS vehicles.
Keywords: PMEDS; passive damping plate; end field; damping plate; dynamic analysis PMEDS; passive damping plate; end field; damping plate; dynamic analysis

Share and Cite

MDPI and ACS Style

Fu, S.; Chi, M.; Shu, A.; Liu, J.; Zhang, S.; Shi, H.; Deng, Z. Dynamic Study on a Passive Damping Scheme for Permanent Magnet Electrodynamic Suspension Vehicle Utilizing Onboard Magnets End Effects. Actuators 2025, 14, 344. https://doi.org/10.3390/act14070344

AMA Style

Fu S, Chi M, Shu A, Liu J, Zhang S, Shi H, Deng Z. Dynamic Study on a Passive Damping Scheme for Permanent Magnet Electrodynamic Suspension Vehicle Utilizing Onboard Magnets End Effects. Actuators. 2025; 14(7):344. https://doi.org/10.3390/act14070344

Chicago/Turabian Style

Fu, Shanqiang, Mingang Chi, Anqi Shu, Junzhi Liu, Shuqing Zhang, Hongfu Shi, and Zigang Deng. 2025. "Dynamic Study on a Passive Damping Scheme for Permanent Magnet Electrodynamic Suspension Vehicle Utilizing Onboard Magnets End Effects" Actuators 14, no. 7: 344. https://doi.org/10.3390/act14070344

APA Style

Fu, S., Chi, M., Shu, A., Liu, J., Zhang, S., Shi, H., & Deng, Z. (2025). Dynamic Study on a Passive Damping Scheme for Permanent Magnet Electrodynamic Suspension Vehicle Utilizing Onboard Magnets End Effects. Actuators, 14(7), 344. https://doi.org/10.3390/act14070344

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