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P. Fossat¹, B. Minard¹, M. Ichchou¹, O. Bareille¹, L. Knight², J.-M. Gilleron² and R. Bouchoux²

¹Vibroacoustics and Complex Media Research Group VIAME, LTDS - CNRS UMR 5513, Centre Lyonnais d’Acoustique CeLyA, École Centrale de Lyon, Écully, France
¹Pôle Maintenance, SNCF Réseau - Infrapôle LGV Sud Est Européen - Tour Part Dieu, Lyon, France

doi:10.4203/ccc.1.22.4

P. Fossat, B. Minard, M. Ichchou, O. Bareille, L. Knight, J.-M. Gilleron, R. Bouchoux, "Vibration mitigation of high-speed line switcher by tuned mass damper", in J. Pombo, (Editor), "Proceedings of the Fifth International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 1, Paper 22.4, 2022, doi:10.4203/ccc.1.22.4

Keywords: railway vibrations, vibration control, tuned mass damper.

Abstract

This paper presents the practical implementation of passive tuned mass damper in the context of railway engineering and focuses on the vibrations experienced by the track equipment in the vicinity of switchers, specifically, the power switch machine that provides the force for opening and closing the switch. Such sensitive components are clamped to the sleepers and experience severe transverse displacement that damages the engine and results in the failure of the whole switcher. Finite element simulations were performed to identify kinematics likely to be responsible for damage and curative solutions were proposed and implemented. Particularly, a tuned mass damper was designed to provide an increased mitigation performance with respect to the targeted kinematic. This vibration absorber was designed according to the design rules available in the literature and its mechanical and geometrical properties were chosen to comply with in-situ constraints. The resulting device is a non-intrusive absorber, easily tunable depending on the installation site, and provides significant reduction the vibration level in the rather low frequency range.

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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: 1 PROCEEDINGS OF THE FIFTH INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE Edited by: J. Pombo Paper 22.4 Vibration mitigation of high-speed line switcher by tuned mass damper P. Fossat¹, B. Minard¹, M. Ichchou¹, O. Bareille¹, L. Knight², J.-M. Gilleron² and R. Bouchoux² ¹Vibroacoustics and Complex Media Research Group VIAME, LTDS - CNRS UMR 5513, Centre Lyonnais d’Acoustique CeLyA, École Centrale de Lyon, Écully, France ¹Pôle Maintenance, SNCF Réseau - Infrapôle LGV Sud Est Européen - Tour Part Dieu, Lyon, France doi:10.4203/ccc.1.22.4 Full Bibliographic Reference for this paper P. Fossat, B. Minard, M. Ichchou, O. Bareille, L. Knight, J.-M. Gilleron, R. Bouchoux, "Vibration mitigation of high-speed line switcher by tuned mass damper", in J. Pombo, (Editor), "Proceedings of the Fifth International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 1, Paper 22.4, 2022, doi:10.4203/ccc.1.22.4 Keywords: railway vibrations, vibration control, tuned mass damper. Abstract This paper presents the practical implementation of passive tuned mass damper in the context of railway engineering and focuses on the vibrations experienced by the track equipment in the vicinity of switchers, specifically, the power switch machine that provides the force for opening and closing the switch. Such sensitive components are clamped to the sleepers and experience severe transverse displacement that damages the engine and results in the failure of the whole switcher. Finite element simulations were performed to identify kinematics likely to be responsible for damage and curative solutions were proposed and implemented. Particularly, a tuned mass damper was designed to provide an increased mitigation performance with respect to the targeted kinematic. This vibration absorber was designed according to the design rules available in the literature and its mechanical and geometrical properties were chosen to comply with in-situ constraints. The resulting device is a non-intrusive absorber, easily tunable depending on the installation site, and provides significant reduction the vibration level in the rather low frequency range. download the full-text of this paper (PDF, 8 pages, 530 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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