In this paper, the active control of active vibrational structural intensity (VSI) in an infinite elastic plate in contact with a heavy fluid is modeled by the Mindlin plate theory of bending. The plate is excited by a point force, which generates a vector active VSI field in the plate. Point force actuator(s) at arbitrary location(s) on the plate are utilized to minimize the VSI in a desired zone or in a large global area of the plate. The influence of the number of controller actuators and the location of these controllers relative to the source region for the minimization of the total VSI in a region is explored.
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