有限长线声源斜面声场分析  

Research on slope sound field of finite line sound source

作　　者：张赵晶 沈勇[1] 吴浩东[1] 刘紫赟[1] 

机构地区：[1]南京大学声学研究所近代声学教育部重点实验室,南京210093

出　　处：《应用声学》2015年第1期1-6,共6页Journal of Applied Acoustics

基　　金：有限长近似线声源声学特性研究(A040509);舞台听觉呈现系统声场仿真技术研究(2012BAH38F03-02)

摘　　要：为了进一步研究有限长线声源的声场特性,完善有限长线声源声场理论,建立了有限长线声源斜面声场的模型,提出了其理论计算方法。基于仿真结果和数据分析,探讨并得到了有限长线声源斜面声场特性的三个参数与斜面声场特性之间的关系。通过调整斜面倾角α、交点的位置r0以及有限长线声源的长度L,可以有效改善斜面声场的分布。To further research of the finite line sound source, the slope sound field module was built and a method on analysis of slope sound field was proposed which is significant to theoretical research and practical application on finite line sound source. Through simulation and data analysis, the influence to the slope sound field caused by three parameters--slope angle, location of the intersection, and length of finite line sound source, which are related to the slope module is discussed. The relationship between three parameters and slope sound field was concluded. The slope sound field characteristics can be improved by choosing appropriate parameters.

关 键 词：有限长线声源 声场特性 斜面声场 

分 类 号：O42[理学—声学]