Abstract
As an environmental-friendly and broadband sound absorption materials, micro-perforated panels start to find their wide applications in compact mechanical systems featuring complex acoustic behaviors. Evidences show that, under such circumstances, MPPs work quite differently from the way they behave in traditional architectural or building acoustic applications. This paper summarizes some of our recent work on the modelling, analyses and optimizations of mechanical systems with embedded MPP absorbers. It is demonstrated that the complex acoustic environment in which the MPP is put in creates formidable technical challenges in terms of modeling, analyses, and optimization on one hand, but also opportunities for achieving better sound absorption by making use of the vibroacoustic coupling principles for various applications. [This project was supported by the National Natural Science Foundation of China, Grant No. 11272272.]
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