Abstract
An infinite elastic plate is excited by a mechanical line force, which generates an active structural intensity field in the plate. In an earlier paper [Hayek et al., J. Acoust. Soc. Am. 105, 1299 (1999)], the structural intensity was evaluated analytically for a plate using the Bernoulli–Euler theory, which is valid in the low-frequency range. The paper then employed the same theory for the active control of total structural intensity by use of colocated point forces and moments. In this paper, the evaluation of the structural intensity field due to line forces and moments is modeled by use of the more exact Mindlin plate theory, which is valid in a much higher frequency range. The main objective is to achieve active control of the total structural intensity in infinite elastic plates using the Mindlin plate theory through a colocated line force and a line moment actuators at an arbitrary location on the plate.
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