摘要
基于硬平面上无限长直线声源关于等高平行薄屏的绕射理论，提出一种估计道路声屏障后方３Ｄ空间声场的近似理论模型，据此得到了一种根据交通流及道路的主要条件快速确定关于特定降噪目标所需必要屏障高度的计算方法，并研制了实用的软件系统。
Based on the diffraction theories of infinite straight line-source on hard-ground against a infinite parallel thin-screen, an approximate theoretic method to caculate the 3D space sound field in the sound shadow area behind the barrier is put forward. Then a computer-aided method to decide the essential height of barrier for a given target sound level under a series of definite traffic and road conditions is developed, and the software system is also introduced briefly.
出处
《中国公路学报》
EI
CAS
CSCD
北大核心
1997年第4期33-38,共6页
China Journal of Highway and Transport
关键词
道路
交通噪声
声屏障
CAD
Road traffic noise, Road noise barrier, Visualized design, Road CAD
