Dec. 2025

Article Contents

Journal of Southwest Jiaotong University> 2025> 60(6): 1581-1592.

HU Xiaoyi, CHENG Di, MENG Fandi, SUN Lixia, YAN Ziquan, SUN Linlin, GUO Linjun. Safety Limit for Periodic Short-Wave Irregularity of Wheel and Rail for High-Speed Railways at 400 km/h[J]. Journal of Southwest Jiaotong University, 2025, 60(6): 1581-1592. doi: 10.3969/j.issn.0258-2724.20230676

Citation:

HU Xiaoyi, CHENG Di, MENG Fandi, SUN Lixia, YAN Ziquan, SUN Linlin, GUO Linjun. Safety Limit for Periodic Short-Wave Irregularity of Wheel and Rail for High-Speed Railways at 400 km/h[J].Journal of Southwest Jiaotong University, 2025, 60(6): 1581-1592.doi:10.3969/j.issn.0258-2724.20230676

Citation:

HU Xiaoyi, CHENG Di, MENG Fandi, SUN Lixia, YAN Ziquan, SUN Linlin, GUO Linjun. Safety Limit for Periodic Short-Wave Irregularity of Wheel and Rail for High-Speed Railways at 400 km/h[J].Journal of Southwest Jiaotong University, 2025, 60(6): 1581-1592.doi:10.3969/j.issn.0258-2724.20230676

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Safety Limit for Periodic Short-Wave Irregularity of Wheel and Rail for High-Speed Railways at 400 km/h

doi:10.3969/j.issn.0258-2724.20230676

1.
Railway Science & Technology Research & Development Center, China Academy of Railway Sciences Corporation Limited, Beijing 100081, China
2.
School of Mechanical, Electronic and Control Engineering, Beijing Jiaotong University, Beijing 100044, China
3.
Railway Engineering Research Institute, China Academy of Railway Sciences Corporation Limited, Beijing 100081, China
4.
Beijing NAURA Microelectronics Equipment Company Limited, Beijing 100176, China

Received Date:19 Dec 2023
Rev Recd Date:27 May 2024

Available Online:25 Jul 2025

Publish Date:31 May 2024

Abstract

Abstract

In response to the lack of safety limits for wheel polygon and rail corrugation on high-speed railways operating at 400 km/h, three principles for determining the safety limits of periodic short-wave irregularities between wheel and rail were proposed: According to the Technical Regulations for Dynamic Acceptance for High-Speed Railways Construction (TB 10761—2013), the wheel–rail vertical force should not exceed 170.00 kN; based on the relationship between the acceleration of elastic rail clips and rail acceleration fitted from measured data on the Wuhan–Guangzhou line and the rail acceleration corresponding to the fatigue fracture of the elastic rail clips caused by resonance, the rail acceleration should be less than 3 250.00 m/s²; according to a service life of at least 30 years, the fatigue damage life of wheel axles should exceed 12 million km. Based on these three principles, a rigid and flexible coupled dynamic model of the vehicle–track system for CR400BF high-speed electrical multiple units (EMUs) was established to calculate the wheel–rail force, rail vibration acceleration, and fatigue damage life of wheel axles under the coupled excitation of large-amplitude periodic short-wave irregularities of wheel and rail for CR400BF EMUs. On this basis, the safety limit of periodic short-wave irregularities between the wheel and rail of high-speed railway at 400 km/h was studied. The results show that under the coupled excitation of rail corrugation with a wavelength of 120–200 mm and an amplitude of 0.020 mm and a 14th–22nd order polygon with an amplitude of 0.025 mm, the wheel–rail force does not exceed 170.00 kN. Under the coupled excitation of rail corrugation with a wavelength of 120–200 mm and an amplitude of 0.040 mm, and a 14th–22nd order polygon with an amplitude of 0.020 mm, the rail acceleration does not exceed 3 250.00 m/s². Under the coupled excitation of rail corrugation with a wavelength of 120–200 mm and an amplitude of 0.040 mm, and a 14th–22nd order polygon with an amplitude of 0.030 mm, the fatigue damage life of the wheel axle exceeds 12 million km. Therefore, it is recommended to set the safety limit for the periodic short-wave irregularities of wheel and rail for 400 km/h high-speed railways at 0.020 mm, which is consistent with the limit for 350 km/h lines.

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References (28)

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Safety Limit for Periodic Short-Wave Irregularity of Wheel and Rail for High-Speed Railways at 400 km/h

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Safety Limit for Periodic Short-Wave Irregularity of Wheel and Rail for High-Speed Railways at 400 km/h

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