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P.H. Alves Correa¹, M. Magelli², A.A. Santos Jr¹ and N. Bosso²

¹School of Mechanical Engineering, Universidade Estadual de Campinas, Brazil
²Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Italy

doi:10.4203/ccc.7.9.12

P.H. Alves Correa, M. Magelli, A.A. Santos Jr, N. Bosso, "Combination of Longitudinal Train Dynamics and Multibody Simulation: Comparison of Co-Simulation with Other Modelling Strategies", 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 9.12, 2024, doi:10.4203/ccc.7.9.12

Keywords: longitudinal train dynamics, multibody system dynamics, co-simulation, running safety, three-piece bogie, heavy haul, wheel-rail contact.

Abstract

The present work aims to benchmark co-simulation architectures against other modelling strategies that can be adopted to combine longitudinal train dynamics and multibody simulations. The comparison of the modelling strategies is performed on a reference train-track operation scenario extracted from an international benchmark, building a detailed multibody model of a group of four wagons. The rest of the train composition is considered in the multibody environment with different approaches, namely a straightforward model applying the in-train forces obtained from a preliminary longitudinal train dynamics simulation, a mixed multibody model where the remaining wagons are modelled as single degree of freedom masses and a multibody model replacing wagon sets with a single big mass. It is found that the multibody models which do not need to exchange data with a separate longitudinal train dynamics module can easily consider the effect of the lateral component of the in-train forces on the derailment ratio, while ensuring lower times for the model setup and simulation with respect to co-simulation architectures.

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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 9.12 Combination of Longitudinal Train Dynamics and Multibody Simulation: Comparison of Co-Simulation with Other Modelling Strategies P.H. Alves Correa¹, M. Magelli², A.A. Santos Jr¹ and N. Bosso² ¹School of Mechanical Engineering, Universidade Estadual de Campinas, Brazil ²Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Italy doi:10.4203/ccc.7.9.12 Full Bibliographic Reference for this paper P.H. Alves Correa, M. Magelli, A.A. Santos Jr, N. Bosso, "Combination of Longitudinal Train Dynamics and Multibody Simulation: Comparison of Co-Simulation with Other Modelling Strategies", 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 9.12, 2024, doi:10.4203/ccc.7.9.12 Keywords: longitudinal train dynamics, multibody system dynamics, co-simulation, running safety, three-piece bogie, heavy haul, wheel-rail contact. Abstract The present work aims to benchmark co-simulation architectures against other modelling strategies that can be adopted to combine longitudinal train dynamics and multibody simulations. The comparison of the modelling strategies is performed on a reference train-track operation scenario extracted from an international benchmark, building a detailed multibody model of a group of four wagons. The rest of the train composition is considered in the multibody environment with different approaches, namely a straightforward model applying the in-train forces obtained from a preliminary longitudinal train dynamics simulation, a mixed multibody model where the remaining wagons are modelled as single degree of freedom masses and a multibody model replacing wagon sets with a single big mass. It is found that the multibody models which do not need to exchange data with a separate longitudinal train dynamics module can easily consider the effect of the lateral component of the in-train forces on the derailment ratio, while ensuring lower times for the model setup and simulation with respect to co-simulation architectures. download the full-text of this paper (PDF, 11 pages, 772 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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