Abstract
This work demonstrates the effects that fluid convection has on the vibro-acoustic response of rectangular plates. The effects of fluid flow on the vibration and stability of plates is reasonably well understood. These effects include dramatic structural modal coupling along with static and dynamic instabilities. However, the resulting effect on sound radiation is not so well understood. The presentation will include a description of the fundamental physics associated with a simply supported, vibrating, rectangular plate in an infinite baffle and radiating into a semi-infinite, convected fluid. Then, simulation results will demonstrate the effects of flow-induced modal coupling and acoustic radiation. It will be demonstrated that convection can significantly increase the radiated sound power and dramatically affect the vibro-acoustic response.
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