Parameter Optimization and Finite Element Simulation of the Inclined Microperforated Panel Absorber

Abstract

Microperforated panel absorber was widely used in the fields of noise reduction and sound absorption, because it had the extraordinary advantages. As deformation of the standard microperforated panel, inclined microperforated panel absorber was proposed and investigated in this research. The theoretical sound absorption model of the inclined microperforated panel absorber was constructed on the basement of the Maa’s theory according to the electro-acoustic theory. Structural parameters of the inclined microperforated panel absorber were optimized on the basement of the constructed theoretical sound absorption model through the cuckoo search algorithm. The finite element simulation model of the inclined microperforated panel absorber with optimal parameters was built in the virtual acoustic laboratory, which could be considered as an effective method to measure and check the sound absorption performance of the inclined microperforated panel absorber. Through the theoretical modeling, parameter optimization, and finite element simulation, sound absorption performance of the inclined microperforated panel absorber was improved, which could be propitious to promote its practical applications in the fields of noise reduction and sound absorption.