Frontiers of Mechanical Engineering >

2018 , Vol. 13 >Issue 3: 385 - 389

DOI: https://doi.org/10.1007/s11465-017-0438-x

RESEARCH ARTICLE

Design of noise-reduction seats for high-speed trains

  • Xiaojun DENG ,
  • Yanju ZHAO ,
  • Haijin ZHANG ,
  • Renzhong SHUAI ,
  • Leiwei ZHU
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  • CRRC Qingdao Sifang Locomotive and Rolling Stock Co. Ltd-2, Qingdao 266111, China

Received date: 30 Nov 2016

Accepted date: 12 Jan 2017

Published date: 11 Jun 2018

Copyright

2017 Higher Education Press and Springer-Verlag Berlin Heidelberg
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Abstract

Noise-reduction seats have been successfully used in concert halls, theaters, and other places that reduce noise. In this study, a new noise-reduction seat design was proposed for high-speed trains, which have unique interior noise spectral characteristics. First, before the noise-reduction seat models were fabricated, the parameters of high-performance sound-absorbing materials and perforated plates were selected by conducting a standing-wave tube test. The sound-absorption effects of the noise-reduction seats and normal seats were investigated and compared in a reverberation chamber. Test results showed that, compared with normal seats, the noise-reduction seats obtained a significantly improved sound-absorption coefficient in the entire frequency band. Furthermore, the test results were used to establish a simulation model for calculation, and the simulation results proved that the noise-reduction seats substantially reduced the noise in an entire train car. Finally, the noise-reduction seats were fabricated and installed in a full train car of an actual high-speed train. The test results showed that, compared with the normal seats, the noise-reduction seats decreased the noise level at a standard point in the passenger car by 1.5 dB. Therefore, the noise-reduction seats are effective in noise reduction.

Key words： high-speed train; sound-absorbing materials; perforated board; noise-reduction seats

Cite this article

Xiaojun DENG , Yanju ZHAO , Haijin ZHANG , Renzhong SHUAI , Leiwei ZHU . Design of noise-reduction seats for high-speed trains[J]. Frontiers of Mechanical Engineering, 2018 , 13(3) : 385 -389 . DOI: 10.1007/s11465-017-0438-x

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