DOI QR코드

DOI QR Code

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

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

  • 투고 : 2013.06.24
  • 심사 : 2013.08.22
  • 발행 : 2013.09.20

초록

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).

키워드

참고문헌

  1. Mellet, C., 2006, High Speed Train Noise Emission : Latest Investigation of the Aerodynamic / Rolling Noise Contribution, Journal of Sound and Vibration, Vol. 293, No. 3-5, pp. 535-546. https://doi.org/10.1016/j.jsv.2005.08.069
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  7. Yoon, J. W., 2012, TL Performance Test of Interference Type Noise Reducing Device by Using Transfer Function, Proceedings of the Korea Society for Railway Annual Autumn Conference, pp. 1-6.
  8. Yoon, J. W., 2012, A Study on the Acoustic Performance Prediction and Evaluation of Lattice Type Noise Reducing Device Installed on the Top of Noise Barrier, Inter-noise 2012.
  9. Kim, C. H., 2011, Performance Evaluation of Noise Reducing Devices Installed on the Top of Highway Noise Barriers, Inter-noise 2011.
  10. ISO 3095-2005, Railway Application-acoustics -Measurement of Noise Emitted by Railbound Vehicles.

피인용 문헌

  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