Title: Optimization Design of Highway Sound Barrier Based on the Effective Length of Sound Source
Abstract: Based on the specifications of survey and design of noise barriers,the effects of the linear acoustic source of highway traffic on the noise level at the barrier are analyzed.The concept of effective length of linear sound source is proposed.Considering the impact of its position,height and length on the cost and noise reduction effect of the sound barrier,a mathematical model is set up with the cost of the noise barrier as an objective function and noise reduction as acoustic constrains.The MATLAB software is used for optimal design.The third-octave band of a representative spectrum is used to calculate the insertion loss,which makes the result more accurate.This method of design,considering the effective length of linear sound source,is proved to be superior in the aspects of economy and noise reduction.
Publication Year: 2011
Publication Date: 2011-01-01
Language: en
Type: article
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Cited By Count: 2
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