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http://dx.doi.org/10.5050/KSNVE.2013.23.9.823

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  

Yoon, Je-Won (Unison Technology Co., Ltd.)
Kim, Young-Chan (Unison Technology Co., Ltd.)
Jang, Kang-Seok (Unison Technology Co., Ltd.)
Hong, Byung-Kook (Unison Technology Co., Ltd.)
Eum, Ki-Young (Korea Railroad Research Institute)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.23, no.9, 2013 , pp. 823-830 More about this Journal
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).
Keywords
Noise Reduction Device; High-speed Railroad; HEMU;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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