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X. Wu¹, J. Ding^2,1, J. Zuo^1,3 and Y. Pan¹

¹Institute of Rail Transit, Tongji University, Shanghai, China
²Postdoctoral Station of Mechanical Engineering, Tongji University, Shanghai, China
³Shanghai Key Laboratory of Rail Infrastructure Durability and System Safety, Tongji University, Shanghai, China

doi:10.4203/ccc.7.14.5

X. Wu, J. Ding, J. Zuo, Y. Pan, "Research on Consistency-Based Matchability Evaluation Method for Brake Valves of Heavy-Duty Trains", 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 14.5, 2024, doi:10.4203/ccc.7.14.5

Keywords: brake valve, matchability evaluation, evaluation indicator, weight distribution, optimal Latin hypercube sampling, heavy-duty trains.

Abstract

To evaluate the matchability between brake valves and associated components of the brake system, a consistency-based matchability evaluation method for brake valves of heavy-duty trains was proposed in this paper. Considering the control accuracy and response speed of the brake system, characteristic parameters of the brake cylinder equilibrium pressure and the response time to reach 90% of the target brake cylinder pressure were extracted as evaluation indicators. The entropy weight method was adopted to allocate weights to evaluation indicators. The optimal Latin hypercube sampling method was used to design operating conditions, and the dual-factor impact of the equivalent output area and equivalent leakage diameter of brake valves on the evaluation indicators was analysed. The matchability of the brake valve was assessed, and the effectiveness of the evaluation method was validated. The proposed method holds significant guidance for the development and optimization of new brake valves.

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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 14.5 Research on Consistency-Based Matchability Evaluation Method for Brake Valves of Heavy-Duty Trains X. Wu¹, J. Ding^2,1, J. Zuo^1,3 and Y. Pan¹ ¹Institute of Rail Transit, Tongji University, Shanghai, China ²Postdoctoral Station of Mechanical Engineering, Tongji University, Shanghai, China ³Shanghai Key Laboratory of Rail Infrastructure Durability and System Safety, Tongji University, Shanghai, China doi:10.4203/ccc.7.14.5 Full Bibliographic Reference for this paper X. Wu, J. Ding, J. Zuo, Y. Pan, "Research on Consistency-Based Matchability Evaluation Method for Brake Valves of Heavy-Duty Trains", 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 14.5, 2024, doi:10.4203/ccc.7.14.5 Keywords: brake valve, matchability evaluation, evaluation indicator, weight distribution, optimal Latin hypercube sampling, heavy-duty trains. Abstract To evaluate the matchability between brake valves and associated components of the brake system, a consistency-based matchability evaluation method for brake valves of heavy-duty trains was proposed in this paper. Considering the control accuracy and response speed of the brake system, characteristic parameters of the brake cylinder equilibrium pressure and the response time to reach 90% of the target brake cylinder pressure were extracted as evaluation indicators. The entropy weight method was adopted to allocate weights to evaluation indicators. The optimal Latin hypercube sampling method was used to design operating conditions, and the dual-factor impact of the equivalent output area and equivalent leakage diameter of brake valves on the evaluation indicators was analysed. The matchability of the brake valve was assessed, and the effectiveness of the evaluation method was validated. The proposed method holds significant guidance for the development and optimization of new brake valves. download the full-text of this paper (PDF, 13 pages, 813 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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