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A. Bracciali, M. Macherelli, F. Piccioli, "Rail vibrations: Data Analysis and FE Modelling with Applications to Signalling Equipment", in J. Pombo, (Editor), "Proceedings of the Second International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 200, 2014. doi:10.4203/ccp.104.200

Keywords: rail, sleeper, vibrations, track, model, standard, point machine, signalling equipment.

Summary

The paper shows the vertical vibration frequency response function of the rail on a sleeper, mid span and quarter span on a number of different tracks, highlighting the differences. Vibration data recorded during trains pass-by are compared, showing how the relevant railway standards may be misleading in some situations. A simplified finite element model of a track is developed to investigate the influence of railpad stiffness, poor tamping conditions and heavy masses connected to the rail. Heavy signalling equipment connected to the rail, e.g. an in-sleeper point machine, can significantly modify the rail vibration environment to which such equipment are subjected. General considerations are drawn on testing strategy both on line and in the laboratory to ensure both the best correspondence to real conditions and the feasibility of the test.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 104 PROCEEDINGS OF THE SECOND INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE Edited by: J. Pombo Paper 200 Rail vibrations: Data Analysis and FE Modelling with Applications to Signalling Equipment A. Bracciali, M. Macherelli and F. Piccioli Dipartimento di Ingegneria Industriale, Università di Firenze, Italy doi:10.4203/ccp.104.200 purchase the full-text of this paper Full Bibliographic Reference for this paper A. Bracciali, M. Macherelli, F. Piccioli, "Rail vibrations: Data Analysis and FE Modelling with Applications to Signalling Equipment", in J. Pombo, (Editor), "Proceedings of the Second International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Stirlingshire, UK, Paper 200, 2014. doi:10.4203/ccp.104.200 Keywords: rail, sleeper, vibrations, track, model, standard, point machine, signalling equipment. Summary The paper shows the vertical vibration frequency response function of the rail on a sleeper, mid span and quarter span on a number of different tracks, highlighting the differences. Vibration data recorded during trains pass-by are compared, showing how the relevant railway standards may be misleading in some situations. A simplified finite element model of a track is developed to investigate the influence of railpad stiffness, poor tamping conditions and heavy masses connected to the rail. Heavy signalling equipment connected to the rail, e.g. an in-sleeper point machine, can significantly modify the rail vibration environment to which such equipment are subjected. General considerations are drawn on testing strategy both on line and in the laboratory to ensure both the best correspondence to real conditions and the feasibility of the test. purchase the full-text of this paper (price £20) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £65 +P&P)
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