矩形平板的声辐射效率计算

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摘  要：平板的辐射效率计算是统计能量分析方法的基础问题。该文基于Rayleigh积分推导四边简支平板结构的声辐射效率积分表达式，并对奇异点处进行近似处理。最后通过数值算例计算，并与成熟商业软件VAONE进行对比，较高频率下计算结果吻合较好，该方法可应用于统计能量方法平板的辐射效率计算。

关键词：统计能量分析;平板;辐射效率;函数;声压

中图分类号：TB533       文献标志码：A          文章编号：2095-2945（2023）08-0059-04

Abstract： The calculation of radiation efficiency of flat plate is the basic problem of statistical energy analysis method. In this paper， the integral expression of acoustic radiation efficiency of quadrilateral simply supported plate structure is derived based on Rayleigh integral， and the singular point is approximately treated. Finally， through the calculation of numerical examples， and compared with the mature commercial software VAONE， the results are in good agreement with each other at higher frequency. This method can be applied to calculate the radiation efficiency of the plate of statistical energy method.

Keywords： statistical energy analysis; plate; radiation efficiency; function; sound pressure

振动结构的声辐射效率是其声辐射性能的一个重要表征参量，反映了振动结构向周围介质中辐射声能量的能力，是工程技术人员在进行声学结构设计时需要考虑的重要参数。（剩余4748字）