Study of noise and structural characteristics of twin-screw air compressor based on multi-physical field coupling

The acoustic-structural coupling analysis of the air compressor shell was done by multi-physical field coupling technique. When the incident frequency is 1300 Hz, the air compressor shell characteristics, such as sound pressure level, deformation, and surface acceleration distribution are analyzed respectively. In order to obtain the distribution law of sound pressure level, deformation and surface acceleration on the shell surface after the incident acoustic wave acts with the shell, three coordinate axis directions are selected, and then three cross sections are selected in each…