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http://dx.doi.org/10.7776/ASK.2011.30.1.042

A Preliminary Study on the Application of Compound Sources to Active Noise Barrier  

Baek, Kwang-Hyun (단국대학교 기계공학과)
Publication Information
The Journal of the Acoustical Society of Korea / v.30, no.1, 2011 , pp. 42-48 More about this Journal
Abstract
This preliminary study is about the application of the compound source to the active noise barrier system as control sources. A compound source is composed of two monopole sources but having opposite phase. However, both monopole sources in one compound source are not independently controlled. The source strength of monopole source close to the noise source is proportional to the other one. Therefore, the cost for the hardware system is cheaper than usual system but known to possibly having a similar performance in generating anti-noise acoustic field. In this study, using a simple active noise barrier system model having a non-reflective floor, the effectiveness of the system with compound sources is investigated through computer simulations and shows 30~40 % performance improvement of noise reduction.
Keywords
Active Noise Barrier; Compound Source; Monopole Source; Active Control;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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