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7148685 
Journal Article 
Investigation of Deformation in Bimorph Piezoelectric Actuator: Analytical, Numerical and Experimental Approach 
Ali, A; Pasha, RA; Elahi, H; Sheeraz, MA; Bibi, S; Ul Hassan, Z; Eugeni, M; Gaudenzi, P; , 
2019 
Yes 
Integrated Ferroelectrics
ISSN: 1058-4587 
TAYLOR & FRANCIS LTD 
ABINGDON 
94-109 
WOS:000508937800010 
Piezoelectric actuators are widely used in many fields such as medical instruments, optics, and aerospace due to their small size and high reliability. Piezoelectric cantilever actuators are used in different configurations such as unimorph and bimorph. In this paper, a 3-D lead zirconate titanate (PZT) bimorph was modeled in COMSOL Multiphysics software for investigation of series and parallel configuration. Theoretical analysis has been developed for the measurement of deformation of a piezoelectric cantilever in inverse piezoelectric effect. The experiment was also performed to examine the deformation of piezoelectric bimorph cantilever. It is found that under a constant applied electric field of 100 V bimorph piezoelectric actuator produces maximum deformation at 100 mm length, 30 mm width, and 20 mm thickness. It is also found that piezoelectric series benders have relatively less deformation than piezoelectric parallel benders. Experimental results show good agreement with theoretical and Numerical results.