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Study on corrugation distribution in metro ramps of curved tracks based on wheel-rail stick-slip characteristics.

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Title: Study on corrugation distribution in metro ramps of curved tracks based on wheel-rail stick-slip characteristics.
Authors: Lei, Zhenyu1 (AUTHOR), Wang, Ziyu1 (AUTHOR) wangziyu200105@163.com, Wang, Zhiqiang1 (AUTHOR)
Source: Journal of Vibration & Control. Mar2026, Vol. 32 Issue 5/6, p1079-1090. 12p.
Subjects: Static friction, Railroad tracks, Railroads, Modal analysis, Mechanical wear
Abstract: It is found that the distribution of corrugation of curved tracks is influenced by ramps: uphill sections have significant corrugation in high rail; downhill sections have more severe corrugation in low rail. To clarify this phenomenon, a vehicle-track rigid-flexible coupling model is developed from the perspective of stick-slip theory to calculate the saturation rate and the overall dispersion rate of adhesion coefficient; a wheel-rail coupling finite element model is developed to perform modal analysis for determining the wavelength fixation condition of ramp corrugation. The results show that: the adhesion coefficient of high rail is close to saturation while that of low rail is small in uphill sections, so high rail is more prone to stick-slip motion further developing into corrugation; the adhesion coefficients of low rail and high rail in downhill sections are close to saturation, so both of them are susceptible to stick-slip motion, and repeated so will induce uneven wear and under the influence of rail irregularity, stick-slip vibration intensity of low rail is more severe and corrugation develops more rapidly. Wheel-rail coupling vibration modes in the range of characteristic frequency of corrugation may provide wavelength fixation condition for the development of corrugation. The parameter analysis shows that: a large uphill gradient will further increase the probability of stick-slip motion in high rail, and a large downhill gradient will sharply increase the probability of stick-slip motion but slow down the rate of development of corrugation in low rail, which, however, will still rapid than that of high rail. For the field study line, slow application of braking/traction force is favorable for ramp corrugation control. The vertical stiffness of fasteners of 40 MN/m is detrimental to corrugation control. The high vertical damping of fasteners has a weak effect on corrugation suppression. Proper deficient super-elevation can alleviate corrugation. [ABSTRACT FROM AUTHOR]
Copyright of Journal of Vibration & Control is the property of Sage Publications, Ltd. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 191630839
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Study on corrugation distribution in metro ramps of curved tracks based on wheel-rail stick-slip characteristics.
– Name: Author
  Label: Authors
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  Data: <searchLink fieldCode="AR" term="%22Lei%2C+Zhenyu%22">Lei, Zhenyu</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Ziyu%22">Wang, Ziyu</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> wangziyu200105@163.com</i><br /><searchLink fieldCode="AR" term="%22Wang%2C+Zhiqiang%22">Wang, Zhiqiang</searchLink><relatesTo>1</relatesTo> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Vibration+%26+Control%22">Journal of Vibration & Control</searchLink>. Mar2026, Vol. 32 Issue 5/6, p1079-1090. 12p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Static+friction%22">Static friction</searchLink><br /><searchLink fieldCode="DE" term="%22Railroad+tracks%22">Railroad tracks</searchLink><br /><searchLink fieldCode="DE" term="%22Railroads%22">Railroads</searchLink><br /><searchLink fieldCode="DE" term="%22Modal+analysis%22">Modal analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Mechanical+wear%22">Mechanical wear</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: It is found that the distribution of corrugation of curved tracks is influenced by ramps: uphill sections have significant corrugation in high rail; downhill sections have more severe corrugation in low rail. To clarify this phenomenon, a vehicle-track rigid-flexible coupling model is developed from the perspective of stick-slip theory to calculate the saturation rate and the overall dispersion rate of adhesion coefficient; a wheel-rail coupling finite element model is developed to perform modal analysis for determining the wavelength fixation condition of ramp corrugation. The results show that: the adhesion coefficient of high rail is close to saturation while that of low rail is small in uphill sections, so high rail is more prone to stick-slip motion further developing into corrugation; the adhesion coefficients of low rail and high rail in downhill sections are close to saturation, so both of them are susceptible to stick-slip motion, and repeated so will induce uneven wear and under the influence of rail irregularity, stick-slip vibration intensity of low rail is more severe and corrugation develops more rapidly. Wheel-rail coupling vibration modes in the range of characteristic frequency of corrugation may provide wavelength fixation condition for the development of corrugation. The parameter analysis shows that: a large uphill gradient will further increase the probability of stick-slip motion in high rail, and a large downhill gradient will sharply increase the probability of stick-slip motion but slow down the rate of development of corrugation in low rail, which, however, will still rapid than that of high rail. For the field study line, slow application of braking/traction force is favorable for ramp corrugation control. The vertical stiffness of fasteners of 40 MN/m is detrimental to corrugation control. The high vertical damping of fasteners has a weak effect on corrugation suppression. Proper deficient super-elevation can alleviate corrugation. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Vibration & Control is the property of Sage Publications, Ltd. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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    Identifiers:
      – Type: doi
        Value: 10.1177/10775463241309047
    Languages:
      – Code: eng
        Text: English
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      Pagination:
        PageCount: 12
        StartPage: 1079
    Subjects:
      – SubjectFull: Static friction
        Type: general
      – SubjectFull: Railroad tracks
        Type: general
      – SubjectFull: Railroads
        Type: general
      – SubjectFull: Modal analysis
        Type: general
      – SubjectFull: Mechanical wear
        Type: general
    Titles:
      – TitleFull: Study on corrugation distribution in metro ramps of curved tracks based on wheel-rail stick-slip characteristics.
        Type: main
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          Name:
            NameFull: Lei, Zhenyu
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          Name:
            NameFull: Wang, Ziyu
      – PersonEntity:
          Name:
            NameFull: Wang, Zhiqiang
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          Dates:
            – D: 01
              M: 03
              Text: Mar2026
              Type: published
              Y: 2026
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              Value: 32
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              Value: 5/6
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            – TitleFull: Journal of Vibration & Control
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