非规则消声水池自由场仿真与实验研究  

Simulation and Experimental Study on the Free Field of an Irregular Anechoic Water Tank

作　　者：许辉[1] 喻敏[1] 张咏鸥 XU Hui;YU Min;ZHANG Yongou(School of Transportation,Wuhan University of Technology,Wuhan 430063,China)

机构地区：[1]武汉理工大学交通学院,武汉430063

出　　处：《武汉理工大学学报（交通科学与工程版）》2018年第5期815-819,共5页Journal of Wuhan University of Technology（Transportation Science & Engineering）

基　　金：国家自然科学青年基金项目(41170891);国家自然科学基金项目(51741910)资助;武汉理工大学自主创新项目(20210112)

摘　　要：文中采用边界元方法对非规则水池进行声场计算,并且通过实验进行对比验证.结果表明,边界元方法计算效率高,可以快速的获得需要的自由声场范围和其他细节信息;可以更方便的计算不同频率,不同吸声系数下的水池性能;相较于实验测量可以更好地拟合声衰减曲线,提高计算精度.此外,与实验对比表明,以吸声材料顶端作为数值计算中声学边界位置能获得更好的精度.The boundary element method was used to calculate the sound field of the irregular anechoic water tank, and the results were compared and verified by experiments. The results show that the boundary element method has high computational efficiency and can quickly obtain the required free acoustic field range and other details. This method can more easily calculate the tank performance under different frequencies and sound absorption coefficient.Compared with the experimental measurement, it can better fit the acoustic attenuation curve and improve the calculation accuracy. In addition, the comparison with the experimental results shows that better accuracy can be obtained by taking the top of the sound absorbing material as the acoustic boundary position in numerical calculation.

关 键 词：非规则消声水池 边界元法 自由场 水声实验 

分 类 号：TB525[理学—物理]