Abstract
We present a method for optimization of the location of the induced-strain actuator foracoustic response synthesis, based on the impedance technique. A dynamic model thatcouples the actuator impedance, the host structure impedance and the acoustic impedanceis developed and then utilized to determine the optimal location of the actuator. Theactuator power factor concept describes the transfer efficiency of the supplied electricalenergy into the host structure. This work is based on the power factor and provides analternative to the traditional optimization methods for determining where to bondthe actuator. For an intelligent structure which is usually bonded with multipleactuators, a modified impedance model including the mass effect resulting fromthe actuators themselves is also proposed. Numerical examples are presented toshow the influence of the mass effect on the power factor and to illustrate how toimplement this method to design the optimal location of the actuator for acousticsynthesis.
Published Version
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