Transactions of the Korean Society for Noise and Vibration Engineering (한국소음진동공학회논문집)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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A Study on the Development of a Noise Reduction Device Installed at the Top of Noise Barrier for the 400 km/h Class High-speed Railroad

400 km/h급 고속철도의 소음저감을 위해 방음벽 상부에 설치하는 소음저감장치 개발에 관한 연구

  • Received : 2013.06.24
  • Accepted : 2013.08.22
  • Published : 2013.09.20
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Abstract

The purpose of this study is to develop a noise reduction device installed at the top of noise barrier for further decreasing of noise level of 400 km/h class high-speed railroad. For this, the frequency spectrum of 400 km/h class high-speed railroad was analyzed through the field noise test, and the tuning frequency was determined to design a noise reduction device. The noise reduction device was designed to have noise reduction performance of at least 3 dB(A) using the prediction method(2D BEM) and through the laboratory test with the prototype. Finally, the outdoor test showed that this device could decrease noise level of 400 km/h class high-speed railroad even more than 3 dB(A).

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References

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Cited by

  1. A Study on the Device Installed on the Barrier for The Environmental Noise Reduction in 400 km/h High Speed Railway vol.39, pp.12, 2017, https://doi.org/10.4491/KSEE.2017.39.12.679