Performance improvement of a piezoelectric bimorph actuator by tailoring geometry

Chattaraj, N and Ganguli, R (2018) Performance improvement of a piezoelectric bimorph actuator by tailoring geometry. In: Mechanics of Advanced Materials and Structures, 25 (10). pp. 829-835.

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Abstract

This article illustrates performance improvement of a piezo-bimorph actuator by tailoring its geometry. We have analytically presented that a piezo-bimorph actuator with a tapered surface provides superior performance for out-of-plane bending compared to a rectangular surface while having equal mass and equal primary capacitance. Equal capacitance ensures equal input electrical energy and bandwidth for both the cases below its first resonant frequency. We have analytically derived performance measuring attributes of such an actuator considering high electric field, and shown the performance improvement quantitatively. We have also presented finite element solutions to compare with the analytical solutions. Some results are validated with the earlier published experimental results.

Item Type:	Journal Article
Publication:	Mechanics of Advanced Materials and Structures
Publisher:	Taylor and Francis Inc.
Additional Information:	The copyright for this article belongs to the Taylor and Francis Inc.
Keywords:	Analytical models; Capacitance; Electric fields; Intelligent structures; Natural frequencies; Piezoelectricity, Finite element solution; High electric fields; Out-of-plane bending; Performance measuring; Piezoelectric; Piezoelectric bimorph actuators; Rectangular surfaces; tapered bimorph, Actuators
Department/Centre:	Division of Mechanical Sciences > Aerospace Engineering(Formerly Aeronautical Engineering)
Date Deposited:	07 Aug 2022 08:50
Last Modified:	07 Aug 2022 08:50
URI:	https://eprints.iisc.ac.in/id/eprint/75439

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