A Large Scale Structural-Acoustic Analysis Method.

This paper presents a large scale structural-acoustic analysis method in which, a cavity is divided into several acoustic fields. This system uses a transfer-function method to solve the acoustics efficiently. By solving simultaneous equations using the Gaussian elimination method for each pair of neighboring acoustic sub-fields in sequence, calculation time and memory requirements are reduced. Calculation accuracy is the same as when calculating the entire acoustic field without dividing it. We created a closed acoustic model (a cavity model) and carried out the numerical simulations. The results showed that the proposed method is effective for large scale structural-acoustic analysis.