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Z. Tang, Z. Peng, S. Liu, T. Chen, Z. Qu, "Topology and Sizing Optimisation of Cowcatcher for Enhancing Post-Derailment Passive Safety Performance", in P. Iványi, J. Kruis, B.H.V. Topping, (Editors), "Proceedings of the Fifteenth International Conference on Computational Structures Technology", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 9, Paper 4.6, 2024, doi:10.4203/ccc.9.4.6

Keywords: passive train safety, post-derailment, vehicle cowcatcher, structural optimisation, topology optimisation, sizing optimisation.

Abstract

The train cowcatcher not only sweeps aside animals, debris, or objects obstructing the tracks, preventing damage to a train and reducing the risk of derailment, but it also serves as a passive safety protection mechanism after a derailment. However, due to intense impact forces, the cowcatcher may sustain severe structural damage, potentially compromising its passive safety protection capability. To address this issue, this paper employs a collaborative optimisation approach to conduct topology and sizing optimisation of the cowcatcher, aiming to reduce its mass while enhancing structural strength and passive safety protection performance after a derailment. Validation tests were conducted for both pre- and post-optimized cowcatchers in the derailment simulations. The results indicate that the post-optimized cowcatcher exhibits stronger structural stability, and its passive safety protection capability is improved.

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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: 9 PROCEEDINGS OF THE FIFTEENTH INTERNATIONAL CONFERENCE ON COMPUTATIONAL STRUCTURES TECHNOLOGY Edited by: P. Iványi, J. Kruis and B.H.V. Topping Paper 4.6 Topology and Sizing Optimisation of Cowcatcher for Enhancing Post-Derailment Passive Safety Performance Z. Tang, Z. Peng, S. Liu, T. Chen and Z. Qu State Key Laboratory of Rail Transit Vehicle System, Southwest Jiaotong University, Chengdu, China doi:10.4203/ccc.9.4.6 Full Bibliographic Reference for this paper Z. Tang, Z. Peng, S. Liu, T. Chen, Z. Qu, "Topology and Sizing Optimisation of Cowcatcher for Enhancing Post-Derailment Passive Safety Performance", in P. Iványi, J. Kruis, B.H.V. Topping, (Editors), "Proceedings of the Fifteenth International Conference on Computational Structures Technology", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 9, Paper 4.6, 2024, doi:10.4203/ccc.9.4.6 Keywords: passive train safety, post-derailment, vehicle cowcatcher, structural optimisation, topology optimisation, sizing optimisation. Abstract The train cowcatcher not only sweeps aside animals, debris, or objects obstructing the tracks, preventing damage to a train and reducing the risk of derailment, but it also serves as a passive safety protection mechanism after a derailment. However, due to intense impact forces, the cowcatcher may sustain severe structural damage, potentially compromising its passive safety protection capability. To address this issue, this paper employs a collaborative optimisation approach to conduct topology and sizing optimisation of the cowcatcher, aiming to reduce its mass while enhancing structural strength and passive safety protection performance after a derailment. Validation tests were conducted for both pre- and post-optimized cowcatchers in the derailment simulations. The results indicate that the post-optimized cowcatcher exhibits stronger structural stability, and its passive safety protection capability is improved. download the full-text of this paper (PDF, 14 pages, 1291 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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