Research on Acoustic Numerical Simulation for Structure-Acoustic Coupled Random Vibration

The acoustic field of structure random vibration subjected to a random load is a random acoustic field, and its numerical simulation is very important to noise reduction. The finite element model of the structure-acoustic couple vibration was set up, and the acoustic response function was deduced, and the acoustic pressure response feature was formulated by the vibration acoustic field coupled with a plate as an example. The results show that acoustic response feature of random vibration depends on the acoustic response function and the spectral density function of the stimulating load.