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A. Guedes¹, R. Silva¹, V. Gonçalves¹, F. Manso², A. Meixedo¹, P.A. Montenegro¹ and J.T. Fernandes^3,4

¹CONSTRUCT-LESE, Faculty of Engineering, University of Porto, Porto, Portugal
²Faculty of Engineering, University of Porto, Portugal
³NT, Nomad Tech, Matosinhos, Portugal
⁴Centre for Informatics and Systems, Department of Informatics Engineering, University of Coimbra, Coimbra, Portugal

doi:10.4203/ccc.7.11.10

A. Guedes, R. Silva, V. Gonçalves, F. Manso, A. Meixedo, P.A. Montenegro, J.T. Fernandes, "Assessment of Safety Against Derailment using Simulations and the Simplified Method of EN 14363 Standard", in J. Pombo, (Editor), "Proceedings of the Sixth International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 7, Paper 11.10, 2024, doi:10.4203/ccc.7.11.10

Keywords: simplified method, European standard EN 14363, derailment of railway vehicles, on-board system, Multibody model, track quality, running safety.

Abstract

This work proposes the application of the simplified method comprised in the European standard EN 14363 as an indicator to assess the safety against derailment of railway vehicles using acceleration data from an on-board system. This approach is applied to a railway vehicle through numerical simulations with a Multibody model and a sensitivity analysis for different track irregularity scenarios in accordance with the levels established by European Standard EN 13848-5. The results show good sensitivity of the vehicle’s responses to the different track irregularity scenarios, with higher acceleration values for higher peak values of track irregularities. In the most severe scenario, corresponding to the safety limit, in all simulations the vehicle derails. Finally, it is concluded that speed reduction is an effective measure to mitigate high acceleration amplitudes, thus promoting railway safety. In short, the preliminary results presented in this work showed the potential of this simplified method to be used as an indicator of track quality and consequently assist railway operators in guaranteeing traffic running safety.

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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: 7 PROCEEDINGS OF THE SIXTH INTERNATIONAL CONFERENCE ON RAILWAY TECHNOLOGY: RESEARCH, DEVELOPMENT AND MAINTENANCE Edited by: J. Pombo Paper 11.10 Assessment of Safety Against Derailment using Simulations and the Simplified Method of EN 14363 Standard A. Guedes¹, R. Silva¹, V. Gonçalves¹, F. Manso², A. Meixedo¹, P.A. Montenegro¹ and J.T. Fernandes^3,4 ¹CONSTRUCT-LESE, Faculty of Engineering, University of Porto, Porto, Portugal ²Faculty of Engineering, University of Porto, Portugal ³NT, Nomad Tech, Matosinhos, Portugal ⁴Centre for Informatics and Systems, Department of Informatics Engineering, University of Coimbra, Coimbra, Portugal doi:10.4203/ccc.7.11.10 Full Bibliographic Reference for this paper A. Guedes, R. Silva, V. Gonçalves, F. Manso, A. Meixedo, P.A. Montenegro, J.T. Fernandes, "Assessment of Safety Against Derailment using Simulations and the Simplified Method of EN 14363 Standard", in J. Pombo, (Editor), "Proceedings of the Sixth International Conference on Railway Technology: Research, Development and Maintenance", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 7, Paper 11.10, 2024, doi:10.4203/ccc.7.11.10 Keywords: simplified method, European standard EN 14363, derailment of railway vehicles, on-board system, Multibody model, track quality, running safety. Abstract This work proposes the application of the simplified method comprised in the European standard EN 14363 as an indicator to assess the safety against derailment of railway vehicles using acceleration data from an on-board system. This approach is applied to a railway vehicle through numerical simulations with a Multibody model and a sensitivity analysis for different track irregularity scenarios in accordance with the levels established by European Standard EN 13848-5. The results show good sensitivity of the vehicle’s responses to the different track irregularity scenarios, with higher acceleration values for higher peak values of track irregularities. In the most severe scenario, corresponding to the safety limit, in all simulations the vehicle derails. Finally, it is concluded that speed reduction is an effective measure to mitigate high acceleration amplitudes, thus promoting railway safety. In short, the preliminary results presented in this work showed the potential of this simplified method to be used as an indicator of track quality and consequently assist railway operators in guaranteeing traffic running safety. download the full-text of this paper (PDF, 12 pages, 1166 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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