Calculation and Analysis of Acoustic Characteristics of Straight-Through Perforated Pipe Muffler Based on Multilayer Sound Absorbing Material

Using the multi-physical field simulation software COMSOL, the acoustic characteristics of the multilayer sound absorbing material straight-through perforated pipe muffler are studied by the finite element method. The results show that the finite element calculation of the multilayer sound absorbing material straight-through the perforated pipe muffler agrees well with the experimental measurement results. The reliability of the finite element method for studying the acoustic performance of the ...