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Y. Xu¹, H. Li², J. Lei¹ and W.Z. Liu³

¹Faculty of Transportation Engineering, Kunming University of Science and Technology, Kunming, China
²State Key Laboratory of Rail Transit Vehicle System, Southwest Jiaotong University, Chengdu, China
³Department of Engineering Mechanics, KTH Royal Institute of Technology, Sweden

doi:10.4203/ccc.7.4.10

Y. Xu, H. Li, J. Lei, W.Z. Liu, "A Simplified Modal Superposition Method Based Pantograph-Stitched Catenary Interaction Model", 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 4.10, 2024, doi:10.4203/ccc.7.4.10

Keywords: stitched catenary, modal superposition, stitch wire model, pantograph-catenary interaction, EN50318:2018 standard, calculation efficiency.

Abstract

The modal superposition method (MSM) has been proven to be more accurate and more efficient than the finite element method in modeling pantograph-catenary interaction systems. However, the stitched wire in a stitched catenary system is difficult to directly model by the modal superposition method, which limits its application in the investigation of pantograph-stitched catenary interaction dynamics. In this work, a new modal superposition method-based pantograph–stitched catenary interaction model is developed to simulate pantograph–stitched catenary interactions. In this model, the stitched wire is simplified into a part of the messenger wire supported by two spring-damping elements, and the modal superposition method is then used to model the simplified stitched catenary system. The present model is validated by the EN 50318:2018 standard. The validation results show that the proposed modal superposition method-based model can accurately simulate the pantograph-stitched catenary interaction with proper key parameters considered, including the distance between every two spring-damper elements and the stiffness of the elements.

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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 4.10 A Simplified Modal Superposition Method Based Pantograph-Stitched Catenary Interaction Model Y. Xu¹, H. Li², J. Lei¹ and W.Z. Liu³ ¹Faculty of Transportation Engineering, Kunming University of Science and Technology, Kunming, China ²State Key Laboratory of Rail Transit Vehicle System, Southwest Jiaotong University, Chengdu, China ³Department of Engineering Mechanics, KTH Royal Institute of Technology, Sweden doi:10.4203/ccc.7.4.10 Full Bibliographic Reference for this paper Y. Xu, H. Li, J. Lei, W.Z. Liu, "A Simplified Modal Superposition Method Based Pantograph-Stitched Catenary Interaction Model", 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 4.10, 2024, doi:10.4203/ccc.7.4.10 Keywords: stitched catenary, modal superposition, stitch wire model, pantograph-catenary interaction, EN50318:2018 standard, calculation efficiency. Abstract The modal superposition method (MSM) has been proven to be more accurate and more efficient than the finite element method in modeling pantograph-catenary interaction systems. However, the stitched wire in a stitched catenary system is difficult to directly model by the modal superposition method, which limits its application in the investigation of pantograph-stitched catenary interaction dynamics. In this work, a new modal superposition method-based pantograph–stitched catenary interaction model is developed to simulate pantograph–stitched catenary interactions. In this model, the stitched wire is simplified into a part of the messenger wire supported by two spring-damping elements, and the modal superposition method is then used to model the simplified stitched catenary system. The present model is validated by the EN 50318:2018 standard. The validation results show that the proposed modal superposition method-based model can accurately simulate the pantograph-stitched catenary interaction with proper key parameters considered, including the distance between every two spring-damper elements and the stiffness of the elements. download the full-text of this paper (PDF, 9 pages, 809 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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