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J.A. Neto, P.A. Montenegro, R.B. Calçada, "A vehicle-based infrastructure monitoring system using an inverse dynamic model approach", 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 10.4, 2022, doi:10.4203/ccc.1.10.4

Keywords: condition monitoring, inverse dynamic model, wheel/rail contact forces, numerical analyses.

Abstract

This paper presents an inverse dynamic model approach as an indirect way to obtain the wheel/rail contact forces. Therefore, a numerical model of a passenger vehicle is developed taking into consideration a multibody formulation. The model is used to perform a numerical simulation where the train-track interaction problem is considered. The resultant contact forces time-histories are used to evaluate the capacity of the inverse algorithm to replicate the vehicle dynamic behaviour. At the same time, the acceleration responses obtained from the simulation are fed to the inverse dynamic model. The comparison between the contact forces from the simulation and from the algorithm reveals that the inverse model has high accuracy and it is capable of catching even the abrupt changes in the system. When evaluating the Prud’Homme criterion results, the method can reproduce the simulation outcomes. Hence, the method can be considered as robust and accurate.

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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 10.4 A vehicle-based infrastructure monitoring system using an inverse dynamic model approach J.A. Neto, P.A. Montenegro and R.B. Calçada Construct, Department of Civil Engineering, Faculty of Engineering, University of Porto, Portugal doi:10.4203/ccc.1.10.4 Full Bibliographic Reference for this paper J.A. Neto, P.A. Montenegro, R.B. Calçada, "A vehicle-based infrastructure monitoring system using an inverse dynamic model approach", 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 10.4, 2022, doi:10.4203/ccc.1.10.4 Keywords: condition monitoring, inverse dynamic model, wheel/rail contact forces, numerical analyses. Abstract This paper presents an inverse dynamic model approach as an indirect way to obtain the wheel/rail contact forces. Therefore, a numerical model of a passenger vehicle is developed taking into consideration a multibody formulation. The model is used to perform a numerical simulation where the train-track interaction problem is considered. The resultant contact forces time-histories are used to evaluate the capacity of the inverse algorithm to replicate the vehicle dynamic behaviour. At the same time, the acceleration responses obtained from the simulation are fed to the inverse dynamic model. The comparison between the contact forces from the simulation and from the algorithm reveals that the inverse model has high accuracy and it is capable of catching even the abrupt changes in the system. When evaluating the Prud’Homme criterion results, the method can reproduce the simulation outcomes. Hence, the method can be considered as robust and accurate. download the full-text of this paper (PDF, 6 pages, 732 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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