A mobility based vibroacoustic energy transmission simulation into an enclosure through a double-wall panel

作者：Sahu Atanu; Bhattacharya Partha^*; Niyogi Arup Guha; Rose Michael

来源：Journal of the Acoustical Society of America, 2017, 141(6): EL598-EL604.

DOI：10.1121/1.4989729

Double-wall panels are known for their superior sound insulation properties over single wall panels as a sound barrier. The sound transmission phenomenon through a double-wall structure is a complex process involving vibroacoustic interaction between structural panels, the air-cushion in between, and the secondary acoustic domain. It is in this context a versatile and a fully coupled technique based on the finite-element-boundary element model is developed that enables estimation of sound transfer through a double-wall panel into an adjacent enclosure while satisfying the displacement compatibility across the interface. The contribution of individual components in the transmitted energy is identified through numerical simulations.

• 出版日期2017-6