Acoustics Field and Active Structural Acoustic Control Modeling in ANSYS

This article attempts to examine acoustic finite element analysis coupled with structure, and provides the necessary information to apply ANSYS for a wide class of structural acoustics problem. First part of this article describes the acoustic field and hence the uses of acoustic point sources in ANSYS. Results are explained and compared with that of analytical solution. And second part deals with the active control of structural acoustic problems. Results are presented for global cancellation of a primary monopole's sound field by the use of multiple piezoelectric elements bonded to the surface of the elastic structure to provide control forces.
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