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J. Yang, G. Lin, "Study on the Influence of Different Natural Vibration Frequencies of Track Beams on the Vehicle-Bridge Coupling Dynamics of High-Speed Maglev", in J. Pombo, (Editor), "Proceedings of the Seventh International Conference on Railway Technology: Research, Development and Maintenance ", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 15, Paper 11.4, 2026, doi:10.4203/ccc.15.11.4

Keywords: high-speed maglev, vehicle-bridge coupling, dynamic characteristics, track beam, natural vibration frequency, coefficient 1.1.

Abstract

To investigate the influence characteristics of the natural vibration frequency of track beams on high-speed maglev dynamics, a high-speed maglev vehicle-bridge coupling dynamic model is established, and the influence law of the natural vibration frequency of track beams on the dynamic response characteristics of high-speed maglev under different speeds is analyzed. The research results show that the coefficient 1.1 in the first-order frequency formula is a vehicle dynamics correction factor, which inhibits the extreme fluctuation of the levitation electromagnetic force to a certain extent and reduces the fluctuation range of the electromagnetic force. However, the difference magnitude is small, neglecting the coefficient 1.1 does not cause system instability or resonance risk, and it is essentially a conservative design for the dynamic coupling excitation between the track beam and the suspension system.

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Front Page Browse CCC CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Conferences ISSN 2753-3239 CCC: 15 PROCEEDINGS OF THE SEVENTH INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE Edited by: J. Pombo Paper 11.4 Study on the Influence of Different Natural Vibration Frequencies of Track Beams on the Vehicle-Bridge Coupling Dynamics of High-Speed Maglev J. Yang and G. Lin , National Maglev Transportation Engineering R&D Center, Shanghai, China doi:10.4203/ccc.15.11.4 Full Bibliographic Reference for this paper J. Yang, G. Lin, "Study on the Influence of Different Natural Vibration Frequencies of Track Beams on the Vehicle-Bridge Coupling Dynamics of High-Speed Maglev", in J. Pombo, (Editor), "Proceedings of the Seventh International Conference on Railway Technology: Research, Development and Maintenance ", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 15, Paper 11.4, 2026, doi:10.4203/ccc.15.11.4 Keywords: high-speed maglev, vehicle-bridge coupling, dynamic characteristics, track beam, natural vibration frequency, coefficient 1.1. Abstract To investigate the influence characteristics of the natural vibration frequency of track beams on high-speed maglev dynamics, a high-speed maglev vehicle-bridge coupling dynamic model is established, and the influence law of the natural vibration frequency of track beams on the dynamic response characteristics of high-speed maglev under different speeds is analyzed. The research results show that the coefficient 1.1 in the first-order frequency formula is a vehicle dynamics correction factor, which inhibits the extreme fluctuation of the levitation electromagnetic force to a certain extent and reduces the fluctuation range of the electromagnetic force. However, the difference magnitude is small, neglecting the coefficient 1.1 does not cause system instability or resonance risk, and it is essentially a conservative design for the dynamic coupling excitation between the track beam and the suspension system. download the full-text of this paper (PDF, 16 pages, 964 Kb) go to the previous paper go to the next paper return to the table of contents return to the volume description
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