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Research on Aerodynamic Noise Reduction for High-Speed Trains
Joint Authors
Zhang, Jiye
Zhang, Weihua
Zhang, Yadong
Li, Tian
Zhang, Liang
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-21, 21 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-10-03
Country of Publication
Egypt
No. of Pages
21
Main Subjects
Abstract EN
A broadband noise source model based on Lighthill’s acoustic theory was used to perform numerical simulations of the aerodynamic noise sources for a high-speed train.
The near-field unsteady flow around a high-speed train was analysed based on a delayed detached-eddy simulation (DDES) using the finite volume method with high-order difference schemes.
The far-field aerodynamic noise from a high-speed train was predicted using a computational fluid dynamics (CFD)/Ffowcs Williams-Hawkings (FW-H) acoustic analogy.
An analysis of noise reduction methods based on the main noise sources was performed.
An aerodynamic noise model for a full-scale high-speed train, including three coaches with six bogies, two inter-coach spacings, two windscreen wipers, and two pantographs, was established.
Several low-noise design improvements for the high-speed train were identified, based primarily on the main noise sources; these improvements included the choice of the knuckle-downstream or knuckle-upstream pantograph orientation as well as different pantograph fairing structures, pantograph fairing installation positions, pantograph lifting configurations, inter-coach spacings, and bogie skirt boards.
Based on the analysis, we designed a low-noise structure for a full-scale high-speed train with an average sound pressure level (SPL) 3.2 dB(A) lower than that of the original train.
Thus, the noise reduction design goal was achieved.
In addition, the accuracy of the aerodynamic noise calculation method was demonstrated via experimental wind tunnel tests.
American Psychological Association (APA)
Zhang, Yadong& Zhang, Jiye& Li, Tian& Zhang, Liang& Zhang, Weihua. 2016. Research on Aerodynamic Noise Reduction for High-Speed Trains. Shock and Vibration،Vol. 2016, no. 2016, pp.1-21.
https://search.emarefa.net/detail/BIM-1119419
Modern Language Association (MLA)
Zhang, Yadong…[et al.]. Research on Aerodynamic Noise Reduction for High-Speed Trains. Shock and Vibration No. 2016 (2016), pp.1-21.
https://search.emarefa.net/detail/BIM-1119419
American Medical Association (AMA)
Zhang, Yadong& Zhang, Jiye& Li, Tian& Zhang, Liang& Zhang, Weihua. Research on Aerodynamic Noise Reduction for High-Speed Trains. Shock and Vibration. 2016. Vol. 2016, no. 2016, pp.1-21.
https://search.emarefa.net/detail/BIM-1119419
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1119419