论文信息 - An indirect boundary element formulation for multi-valued impedance simulation in structural acoustics

An indirect boundary element formulation for multi-valued impedance simulation in structural acoustics

Abstract The indirect boundary element method naturally allows the simultaneous modelling of acoustic domains on both sides of thin vibrating structures. To fully utilize the potential of this technique a formulation that permits the application of separate impedance on the surface of acoustic domains on each side of the vibrating structure is developed. The resulting integral equations are solved by using a variational approach. The formulation and the numerical implementation are validated by comparing the results from the present development to analytical solutions. The applicability of this procedure to the solution of a realistic engineering problem is also demonstrated.

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