Department of Building Service Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China.
J Acoust Soc Am. 2011 Jun;129(6):EL274-9. doi: 10.1121/1.3591053.
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.
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。
