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Y.Michitsuji¹, A.Matsumoto², Y.Ichiyanagi³, Y.Sato³, H.Ohno³, S.Ogata³, M.Tanimoto⁴, T.Fukushima⁴, T.Matsuda⁴ and D.Shinagawa⁵

¹Ibaraki University, Japan
²Nihon University, Japan
³National Traffic Safety & Environment Laboratory, Japan
⁴Tokyo Metro Co., Ltd., Japan
⁵Nippon Steel Corporation, Japan

doi:10.4203/ccc.1.25.1

Y.Michitsuji, A.Matsumoto, Y.Ichiyanagi Y.Sato, H.Ohno, S.Ogata, M.Tanimoto, T.Fukushima, T.Matsuda, D.Shinagawa, "Estimation method of friction coefficient between flange and rail with monitoring bogie: Experimental results with roller-rig test", 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 25.1, 2022, doi:10.4203/ccc.1.25.1

Keywords: bogie, condition monitoring, friction coefficient, curve, roller-rig.

Abstract

The friction coefficient between wheels and rails plays important roll regarding severe wear, corrugation and probability of flange-climb derailment. Therefore, the value of the friction coefficient should be well monitored in service operation. In general, the value of the friction coefficient especially at flange of leading outside wheel is difficult to be measured during service operation. A new monitoring bogie which can measure lateral, vertical and tangential forces between wheels and rails has been developed. This paper presents the possibility of the estimation method using roller-rig at NTSEL. The main feature of the roller-rig is that it can emulate the curving behaviour of railway bogies. The friction coefficient of rollers can be changed by manually applying grease, and therefore the effect of onsite lubrication device can be fully reproduced. While constructing multibody-dynamics simulation model including half-vehicle model and roller-rig, the estimator of the friction coefficient can be built with collected data for building look-up tables. From the results of experiment on roller-rig, the fundamental effectiveness of the proposed estimation method of wheel/rail friction coefficient is demonstrated in this paper.

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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 25.1 Estimation method of friction coefficient between flange and rail with monitoring bogie: Experimental results with roller-rig test Y.Michitsuji¹, A.Matsumoto², Y.Ichiyanagi³, Y.Sato³, H.Ohno³, S.Ogata³, M.Tanimoto⁴, T.Fukushima⁴, T.Matsuda⁴ and D.Shinagawa⁵ ¹Ibaraki University, Japan ²Nihon University, Japan ³National Traffic Safety & Environment Laboratory, Japan ⁴Tokyo Metro Co., Ltd., Japan ⁵Nippon Steel Corporation, Japan doi:10.4203/ccc.1.25.1 Full Bibliographic Reference for this paper Y.Michitsuji, A.Matsumoto, Y.Ichiyanagi Y.Sato, H.Ohno, S.Ogata, M.Tanimoto, T.Fukushima, T.Matsuda, D.Shinagawa, "Estimation method of friction coefficient between flange and rail with monitoring bogie: Experimental results with roller-rig test", 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 25.1, 2022, doi:10.4203/ccc.1.25.1 Keywords: bogie, condition monitoring, friction coefficient, curve, roller-rig. Abstract The friction coefficient between wheels and rails plays important roll regarding severe wear, corrugation and probability of flange-climb derailment. Therefore, the value of the friction coefficient should be well monitored in service operation. In general, the value of the friction coefficient especially at flange of leading outside wheel is difficult to be measured during service operation. A new monitoring bogie which can measure lateral, vertical and tangential forces between wheels and rails has been developed. This paper presents the possibility of the estimation method using roller-rig at NTSEL. The main feature of the roller-rig is that it can emulate the curving behaviour of railway bogies. The friction coefficient of rollers can be changed by manually applying grease, and therefore the effect of onsite lubrication device can be fully reproduced. While constructing multibody-dynamics simulation model including half-vehicle model and roller-rig, the estimator of the friction coefficient can be built with collected data for building look-up tables. From the results of experiment on roller-rig, the fundamental effectiveness of the proposed estimation method of wheel/rail friction coefficient is demonstrated in this paper. download the full-text of this paper (PDF, 5 pages, 594 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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