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dc.contributor.authorRao, R.
dc.identifier.citationJournal of Mechanical Science and Technology, 2015, Vol.29, 11, pp.4817-4822en_US
dc.description.abstractIn this study, a new piezoactuator-based prototype microactuator is proposed with a hydraulic displacement amplification system. A piezoactuator is used to deflect a diaphragm which displaces a certain volume of hydraulic fluid into a smaller-diameter piston chamber, thereby amplifying the displacement at the other end of the piston. An electro-mechanical model is implemented to estimate the displacement of a multilayer piezoelectric actuator for the applied input voltage considering the hysteresis behavior. The displacement characteristics of the proposed microactuator are studied for triangular actuation voltage signal. Results of the experiments and simulation of the displacement behavior of the stacked piezoactuator and the amplified displacement of the prototype actuator were compared. Experimental results suggest that the mathematical model developed for the new piezoactuator-based prototype actuator is capable of estimating its displacement behavior accurately, within an error of 1.2%. 2015, The Korean Society of Mechanical Engineers and Springer-Verlag Berlin Heidelberg.en_US
dc.titleDisplacement characteristics of a piezoactuator-based prototype microactuator with a hydraulic displacement amplification systemen_US
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