Abstract
A new analytical method for the acoustic-structure coupled problem within an irregular enclosure, which has both inner sound sources, and exterior forces exciting it, was developed based on a method called the covering domain method. The method is not only more accurate and faster than numerical methods, such as FEM/BEM, but also can be used to solve acoustic-structure coupled problems within any irregular enclosure in a convenient way, that are impossible for the traditional analytical method. The model for, the active structure acoustic control (ASAC) system of an irregular enclosure based on the method above was founded, and then the optimized actuators outputs were given, which is the key step for ASAC system design. Then the method was applied to a car-like-cavity and it was found that the simulation result is quite good and shows us this new general analytical method for solving active structure acoustic control problems within an irregular enclosure considering acoustic-structure coupling to be quite effective and fit for any irregular enclosure.
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