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Random Vibration Analysis of High-Speed Moving Maglev Train on Simply Supported Bridge Considering Track Irregularity.

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Title: Random Vibration Analysis of High-Speed Moving Maglev Train on Simply Supported Bridge Considering Track Irregularity.
Authors: Lv, Sicong1 (AUTHOR) m15390072158@163.com, Wang, Bin1,2,3 (AUTHOR) wangbinwvb@swjtu.edu.cn, Tang, Ganggui1 (AUTHOR) 153424173@qq.com, Ma, Lingfeng1 (AUTHOR) 1004489260@qq.com, Wang, Weixu1 (AUTHOR) 924067722@qq.com
Source: International Journal of Structural Stability & Dynamics. 5/15/2026, Vol. 26 Issue 10, p1-25. 25p.
Subjects: Random vibration, Bridge vibration, Stability theory, Magnetic control, Railroad tracks, Magnetic levitation vehicles, Time integration scheme
Abstract: The high-speed maglev train is a potential innovative and convenient transportation. Its stability and vibration performances while moving on bridges are still the fundamental considerations to be determined. The stable control condition of the high-speed maglev train moving on an irregulated track is analyzed theoretically employing a simplified moving electromagnet model at first. The Routh–Hurwitz stability criterion is introduced to determine the limiting values of the electromagnetic control parameters. It is interesting that the obtained stable critical values of the control parameters are not sensitive to the moving speed and the bridge parameters. The stable critical value of the electromagnetic control parameters is dominated by the negative stiffness and negative damping mechanism. The coupled vibration system of the high-speed maglev train–bridge considering the track irregularity is then established. The explicit time-domain integration method based on spectral decomposition is applied to solve the random vibration of the system, while the classical Newmark- β method is used to solve the deterministic responses. The numerical results are compared and validated with the Monte Carlo simulation and the measurement data. The statistical response characteristics of the high-speed maglev train and the bridge under random track irregularity are then analyzed. The vibration of the train fluctuates obviously during the suspension process with a great standard derivation. Like the comment wheel rail train on bridge, responses increase obviously with the increase of train speed and the deterioration of the track irregularity. [ABSTRACT FROM AUTHOR]
Copyright of International Journal of Structural Stability & Dynamics is the property of World Scientific Publishing Company 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: 192347527
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Random Vibration Analysis of High-Speed Moving Maglev Train on Simply Supported Bridge Considering Track Irregularity.
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  Label: Authors
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  Data: <searchLink fieldCode="AR" term="%22Lv%2C+Sicong%22">Lv, Sicong</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> m15390072158@163.com</i><br /><searchLink fieldCode="AR" term="%22Wang%2C+Bin%22">Wang, Bin</searchLink><relatesTo>1,2,3</relatesTo> (AUTHOR)<i> wangbinwvb@swjtu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Tang%2C+Ganggui%22">Tang, Ganggui</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> 153424173@qq.com</i><br /><searchLink fieldCode="AR" term="%22Ma%2C+Lingfeng%22">Ma, Lingfeng</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> 1004489260@qq.com</i><br /><searchLink fieldCode="AR" term="%22Wang%2C+Weixu%22">Wang, Weixu</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> 924067722@qq.com</i>
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  Data: <searchLink fieldCode="JN" term="%22International+Journal+of+Structural+Stability+%26+Dynamics%22">International Journal of Structural Stability & Dynamics</searchLink>. 5/15/2026, Vol. 26 Issue 10, p1-25. 25p.
– Name: Subject
  Label: Subjects
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  Data: <searchLink fieldCode="DE" term="%22Random+vibration%22">Random vibration</searchLink><br /><searchLink fieldCode="DE" term="%22Bridge+vibration%22">Bridge vibration</searchLink><br /><searchLink fieldCode="DE" term="%22Stability+theory%22">Stability theory</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetic+control%22">Magnetic control</searchLink><br /><searchLink fieldCode="DE" term="%22Railroad+tracks%22">Railroad tracks</searchLink><br /><searchLink fieldCode="DE" term="%22Magnetic+levitation+vehicles%22">Magnetic levitation vehicles</searchLink><br /><searchLink fieldCode="DE" term="%22Time+integration+scheme%22">Time integration scheme</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The high-speed maglev train is a potential innovative and convenient transportation. Its stability and vibration performances while moving on bridges are still the fundamental considerations to be determined. The stable control condition of the high-speed maglev train moving on an irregulated track is analyzed theoretically employing a simplified moving electromagnet model at first. The Routh–Hurwitz stability criterion is introduced to determine the limiting values of the electromagnetic control parameters. It is interesting that the obtained stable critical values of the control parameters are not sensitive to the moving speed and the bridge parameters. The stable critical value of the electromagnetic control parameters is dominated by the negative stiffness and negative damping mechanism. The coupled vibration system of the high-speed maglev train–bridge considering the track irregularity is then established. The explicit time-domain integration method based on spectral decomposition is applied to solve the random vibration of the system, while the classical Newmark- β method is used to solve the deterministic responses. The numerical results are compared and validated with the Monte Carlo simulation and the measurement data. The statistical response characteristics of the high-speed maglev train and the bridge under random track irregularity are then analyzed. The vibration of the train fluctuates obviously during the suspension process with a great standard derivation. Like the comment wheel rail train on bridge, responses increase obviously with the increase of train speed and the deterioration of the track irregularity. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of International Journal of Structural Stability & Dynamics is the property of World Scientific Publishing Company 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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      – Type: doi
        Value: 10.1142/S0219455426500720
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      – Code: eng
        Text: English
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      Pagination:
        PageCount: 25
        StartPage: 1
    Subjects:
      – SubjectFull: Random vibration
        Type: general
      – SubjectFull: Bridge vibration
        Type: general
      – SubjectFull: Stability theory
        Type: general
      – SubjectFull: Magnetic control
        Type: general
      – SubjectFull: Railroad tracks
        Type: general
      – SubjectFull: Magnetic levitation vehicles
        Type: general
      – SubjectFull: Time integration scheme
        Type: general
    Titles:
      – TitleFull: Random Vibration Analysis of High-Speed Moving Maglev Train on Simply Supported Bridge Considering Track Irregularity.
        Type: main
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            NameFull: Lv, Sicong
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            NameFull: Wang, Bin
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            NameFull: Tang, Ganggui
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            NameFull: Ma, Lingfeng
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            NameFull: Wang, Weixu
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              M: 05
              Text: 5/15/2026
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              Y: 2026
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