具有一般弹性边界条件的矩形隔板声传递的实验验证。

Experimental validation of the sound transmission of rectangular baffled plates with general elastic boundary conditions.

机构信息

Department of Building Service Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China.

出版信息

J Acoust Soc Am. 2011 Jun;129(6):EL274-9. doi: 10.1121/1.3591053.

Abstract

Several prediction methods have recently been developed for systematically studying the effects of general boundary conditions on the sound transmission loss (STL) of plate-like structures. But corresponding experimental validation studies remain scarce owing to the difficulty of obtaining accurate boundary conditions for practical structures. This paper presents a convincing experiment conducted on a baffled plate system to validate the STL prediction model in a previous paper by Yu et al. [Noise Control Eng. J. 58(2), 187-200, 2010]. A method is proposed to determine the boundary conditions of this system, and experimental STL compares well with the predictions based on the identified boundary condition.

摘要

几种预测方法最近已经被开发出来，用于系统地研究一般边界条件对板状结构的隔声量（STL）的影响。但是，由于难以获得实际结构的准确边界条件，相应的实验验证研究仍然很少。本文对一个带有挡板的板系统进行了令人信服的实验，以验证 Yu 等人在之前的一篇论文[Noise Control Eng. J. 58(2), 187-200, 2010]中提出的 STL 预测模型。提出了一种确定该系统边界条件的方法，并且实验 STL 与基于识别出的边界条件的预测结果吻合较好。