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Paper 3.9

Optimization for the Outer Windshield of High-Speed Train Based on Numerical Calculation Method of Dynamic Stability About Fluid-Structure Coupling

Y. Yu¹, G. Zheng^1,2 and G. Yang¹

¹Key Laboratory for Mechanics in Fluid Solid Coupling Systems, Institute of Mechanics, Chinese Academy of Sciences, Beijing, China
²School of Engineering Science, University of Chinese Academy of Sciences, Beijing, China

doi:10.4203/ccc.7.3.9

Y. Yu, G. Zheng, G. Yang, "Optimization for the Outer Windshield of High-Speed Train Based on Numerical Calculation Method of Dynamic Stability About Fluid-Structure Coupling", 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 3.9, 2024, doi:10.4203/ccc.7.3.9

Keywords: outer windshield, flutter, tight coupling, structural intrinsic vibration frequency, operating velocity, optimization.

Abstract

In this paper, a flutter solving program based on unstructured mesh and mixed mesh CFD solver is developed. Using the high-precision and high-efficiency fluid-structure tight coupling method, and the 145mm outer windshield model of high-speed train is selected as the research object. We have studied and analyzed the influence of intrinsic vibration frequency on the outer windshield structure of high-speed train. The result shows that, the vibration of the outer windshield can be convergent by changing the intrinsic vibration frequency of the structure. At the same time, the relationship between the different operating velocity of high-speed train and the intrinsic frequency of structure is explored, and the optimal outer windshield scheme under the different operating velocity is proposed.

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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 3.9 Optimization for the Outer Windshield of High-Speed Train Based on Numerical Calculation Method of Dynamic Stability About Fluid-Structure Coupling Y. Yu¹, G. Zheng^1,2 and G. Yang¹ ¹Key Laboratory for Mechanics in Fluid Solid Coupling Systems, Institute of Mechanics, Chinese Academy of Sciences, Beijing, China ²School of Engineering Science, University of Chinese Academy of Sciences, Beijing, China doi:10.4203/ccc.7.3.9 Full Bibliographic Reference for this paper Y. Yu, G. Zheng, G. Yang, "Optimization for the Outer Windshield of High-Speed Train Based on Numerical Calculation Method of Dynamic Stability About Fluid-Structure Coupling", 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 3.9, 2024, doi:10.4203/ccc.7.3.9 Keywords: outer windshield, flutter, tight coupling, structural intrinsic vibration frequency, operating velocity, optimization. Abstract In this paper, a flutter solving program based on unstructured mesh and mixed mesh CFD solver is developed. Using the high-precision and high-efficiency fluid-structure tight coupling method, and the 145mm outer windshield model of high-speed train is selected as the research object. We have studied and analyzed the influence of intrinsic vibration frequency on the outer windshield structure of high-speed train. The result shows that, the vibration of the outer windshield can be convergent by changing the intrinsic vibration frequency of the structure. At the same time, the relationship between the different operating velocity of high-speed train and the intrinsic frequency of structure is explored, and the optimal outer windshield scheme under the different operating velocity is proposed. download the full-text of this paper (PDF, 13 pages, 780 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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