Abstract
A systematic method based on the impedance technique to determine the optimal locationsand shapes of multiple induced strain actuators bonded on a host structure in respect ofthe smallest power consumption is proposed. The mechanical efficiency in measuring theenergy provided to the actuators and then transferred to the host structure is estimated byusing the power factor which is expressed in terms of impedances of the host structure andthe strain actuators. It provides an alternative besides optimization methods to decidewhere to bond the actuator and what the shape of the actuator should be. For anintelligent structure with multiple actuators, this proposed method provides accuratepredictions of vibration response and mechanical efficiency due to the mass of the multipleactuators being included in the model. Numerical examples are presented to show themass effect caused by the actuators on the power factor and to demonstrate howto determine the optimal bonding locations and configurations for the multipleactuators.
Published Version
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