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http://dx.doi.org/10.5050/KSNVN.2008.18.1.094

Evaluation of the Performance of the Noise Barrier Using the BEM  

Hwang, Cheal-Ho (한남대학교 기계공학과)
Publication Information
Transactions of the Korean Society for Noise and Vibration Engineering / v.18, no.1, 2008 , pp. 94-100 More about this Journal
Abstract
Noise barriers are being used more often to solve problems of noise pollution from traffic noise. Several types of noise barriers are being installed to increase the cost-effectiveness of noise barrier installation. In this study, the insertion loss is analyzed to evaluate the effectiveness of the noise barrier by using the BEM. In order to check the validity of the BEM, the BEM and Lam's theoretical analysis are compared with measurement, which is performed in the anechoic chamber for the 1/10 scale-down model, and good agreements are obtained. By using the two dimensional boundary element method, the insertion loss is calculated and analyzed for several typical noise barriers such as the vertical barrier, the barrier with an oblique edge on top, the T-shaped barrier and the barrier with interference device on top. With these analyses, it is possible to design more cost-effective noise barriers appropriate for a particular area.
Keywords
Traffic Noise; Insertion Loss; Reflective Noise Barrier; Absorptive Noise Barrier; T-shaped Noise Barrier; Interference-type Noise Barrier; Boundary Element Method;
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Times Cited By KSCI : 1  (Citation Analysis)
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