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Influence of Wheel Polygon on Low‑Frequency Vibration of Subway Vehicle Body
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Zuhan XU1, Yongpeng WEN1, 2, 3, Zhixiang ZONG4, Ruiping CHENG1, 3, Hui ZHOU1, 3
Journal of Vibration,Measurement and Diagnosis | 2025, 45(5) : 951 - 960
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Journal of Vibration,Measurement and Diagnosis | 2025, 45(5): 951-960
• PAPER •
Influence of Wheel Polygon on Low‑Frequency Vibration of Subway Vehicle Body
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Zuhan XU1, Yongpeng WEN1, 2, 3, Zhixiang ZONG4, Ruiping CHENG1, 3, Hui ZHOU1, 3
Affiliations
  • 1.School of Urban Railway Transportation，Shanghai University of Engineering Science　Shanghai，201620，China
  • 2.State Key Laboratory of Rail Transit Vehicle System，Southwest Jiaotong University　Chengdu，610031，China
  • 3.Shanghai Engineering Research Centre for Vibration and Noise Control Technologies in Railway Transportation　Shanghai，201620，China
  • 4.Vehicle Branch of Shanghai Metro Maintenance and Guarantee Co.，Ltd.　Shanghai，200235，China
Published: 2025-10-01 doi: 10.16450/j.cnki.issn.1004-6801.2025.05.013
Outline
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To study the influence of subway wheel polygons on low-frequency vibration of the car body，the polygon wear of wheels of a subway line is investigated，on the basis of grasping the distribution characteristics of wheel polygons of subway lines. A vertical dynamic model of elastic car body considering wheel polygons is established，by the time-domain integral solution method. The relationship between wheel polygon excitation frequency and low frequency vibration of vehicle body is studied. By comparing the low-frequency vibration of wheel polygons of different orders，the effect of changes in the operating speed of metro vehicles under service conditions and changes in the radius of wheel wear on the polygonal action of the wheel body is discussed separately. It is shown that a wheel polygon of order 1—3 at common operating speeds generate a low-frequency excitation frequency of 0—20 Hz，and when the excitation frequency is close to the first-order droop frequency of 10.2 Hz resonance will occur. At the beginning of service，the influence of the second order wheel polygon becomes severe on the low frequency vibration of the car body. With the wear of the wheel radius during service，the influence of the first three order wheel polygon changes on the vibration law of the car body. This paper provides a good reference value for service subway operation and wheel maintenance.

wheel polygon  /  radial runout  /  low-frequency vibration  /  wheel wear  /  co-frequency resonance
Zuhan XU, Yongpeng WEN, Zhixiang ZONG, Ruiping CHENG, Hui ZHOU. Influence of Wheel Polygon on Low‑Frequency Vibration of Subway Vehicle Body[J]. Journal of Vibration,Measurement and Diagnosis, 2025 , 45 (5) : 951 -960 . DOI: 10.16450/j.cnki.issn.1004-6801.2025.05.013
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Year 2025 volume 45 Issue 5
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Article Info
doi: 10.16450/j.cnki.issn.1004-6801.2025.05.013
  • Receive Date：2023-01-10
  • Online Date：2026-03-27
  • Published：2025-10-01
Article Data
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History
  • Received：2023-01-10
  • Revised：2023-02-27
Funding
Affiliations
    1.School of Urban Railway Transportation，Shanghai University of Engineering Science　Shanghai，201620，China
    2.State Key Laboratory of Rail Transit Vehicle System，Southwest Jiaotong University　Chengdu，610031，China
    3.Shanghai Engineering Research Centre for Vibration and Noise Control Technologies in Railway Transportation　Shanghai，201620，China
    4.Vehicle Branch of Shanghai Metro Maintenance and Guarantee Co.，Ltd.　Shanghai，200235，China
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表12种不同金属材料的力学参数
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Number of
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小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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