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Civil-Comp Conferences
ISSN 2753-3239
CCC: 6
PROCEEDINGS OF THE SEVENTEENTH INTERNATIONAL CONFERENCE ON CIVIL, STRUCTURAL AND ENVIRONMENTAL ENGINEERING COMPUTING
Edited by: P. Ivanyi, J. Kruis and B.H.V. Topping
Paper 13.2

Optimization of the Sound Insulation Performance of a Train Body Profile in the Pantograph Area of a High-speed Train

S.S. Ding, A.Q. Tian, Y.J. Zhao, J. Du and Y. Chen

Engineering Research Centre, CRRC Qingdao Sifang Co., Ltd, China

Full Bibliographic Reference for this paper
S.S. Ding, A.Q. Tian, Y.J. Zhao, J. Du, Y. Chen, "Optimization of the Sound Insulation Performance of a Train Body Profile in the Pantograph Area of a High-speed Train", in P. Ivanyi, J. Kruis, B.H.V. Topping, (Editors), "Proceedings of the Seventeenth International Conference on Civil, Structural and Environmental Engineering Computing", Civil-Comp Press, Edinburgh, UK, Online volume: CCC 6, Paper 13.2, 2023, doi:10.4203/ccc.6.13.2
Keywords: high-speed train, train body profile, sound insulation, hybrid finite element- statistical energy analysis method, simulation, optimization.

Abstract
In this paper, the sound insulation characteristic of high-speed train body profile in pantograph area is simulated and optimized based on the hybrid finite elementstatistical energy analysis method. After optimization, the new profile structure is determined according to the noise characteristic of pantograph area, which parameters are: the thickness of upper plate, lower plate and rib plate is respectively 2.8mm, 3.3mm, and 1.5mm, and the angle of rib plate is 63 degrees. Maximum weighted transmission loss shown in this case. Compared with original profile model, the transmission loss data of optimized model increased by 4.2dB, and the mass data increased by 5.2%.

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