Abstract
This paper presents the results obtained by using a laminated beam model to predict the displacement of lightweight piezoceramic composite actuators (LIPCA) due to an applied input voltage and an applied transverse load for developmental purposes. The laminated beam model results in two primary design parameters, the actuation coefficient of a laminated beam Culb and the bending stiffness of a laminated beam EIlb The parameter Culb controls maximum displacement when the actuators are subjected to an applied voltage, whereas the parameter EIlb affects the displacement performance when a transverse load is applied to the actuators. The result of the laminated beam model indicates that designing to maximize Culb and EIlb could generate LIPCA-type actuators with larger displacement and higher force. This laminated beam result is validated numerically by using a NASTRAN finite element model result and is also validated experimentally.
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