School of Applied Sciences, Royal Melbourne Institute of Technology, GPO Box 2476V Melbourne, Victoria 3001, Australia.
J Acoust Soc Am. 2012 Aug;132(2):814-21. doi: 10.1121/1.4733533.
The author has published equations for predicting the air borne sound transmission of double leaf cavity walls due to the structure borne sound transmission across the air cavity via (possibly resilient) line connections, but has never published the full derivation of these equations. The author also derived equations for the case when the connections are rigid point connections but has never used them or published them or their derivations. This paper will present the full derivation of the author's theory of the air borne sound transmission of double leaf cavity walls due to the structure borne sound transmission across the air cavity via point or line connections which are modeled as four pole networks. The theoretical results will be compared with experimental results on wooden stud cavity walls from the National Research Council of Canada because the screw spacing is given for these results. This enables connections via studs and screws to be modeled as point connections and avoids the need to make any assumptions about the compliance of the equivalent point or line connections.
作者已经发表了用于预测双层空腔墙由于通过空气腔的结构声传播而引起的空气声传播的方程，这些方程通过（可能是弹性的）线连接来实现，但作者从未发表过这些方程的完整推导。作者还推导出了连接为刚性点连接的情况的方程，但从未使用过它们，也没有发表过这些方程或它们的推导。本文将介绍作者的双层空腔墙由于通过空气腔的结构声传播而引起的空气声传播的理论的完整推导，该理论通过四点或线连接来建模，这些连接被建模为四极网络。理论结果将与加拿大国家研究委员会的木制壁骨空腔墙的实验结果进行比较，因为这些结果给出了螺丝间距。这使得通过壁骨和螺丝的连接可以建模为点连接，并避免需要对等效点或线连接的顺应性做出任何假设。
