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Dynamic Analytical Solution of a Piezoelectric Stack Utilized in an Actuator and a Generator

Liu, Xinnan ; Wang, Jianjun ; Li, Weijie

Applied sciences, 2018-10, Vol.8 (10), p.1779 [Periódico revisado por pares]

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Título:
Dynamic Analytical Solution of a Piezoelectric Stack Utilized in an Actuator and a Generator
Autor: Liu, Xinnan ; Wang, Jianjun ; Li, Weijie
Assuntos: actuator ; Civil engineering ; dynamic analytical solution ; Dynamic characteristics ; Elasticity ; Electric fields ; Energy ; Exact solutions ; generator ; Mechanical components ; Piezoelectric actuators ; piezoelectric stack ; Piezoelectricity ; sensor ; Stacks ; Theory ; Ultrasonic transducers
É parte de: Applied sciences, 2018-10, Vol.8 (10), p.1779
Descrição: This paper presents the dynamic analytical solution of a piezoelectric stack utilized in an actuator and a generator based on the linear piezo-elasticity theory. The solutions for two different kinds of piezoelectric stacks under external load were obtained using the displacement method. The effects of load frequency and load amplitude on the dynamic characteristics of the stacks were discussed. The analytical solutions were validated using the available experimental results in special cases. The proposed model is able not only to predict the output properties of the devices, but also to reflect the inner electrical and mechanical components, which is helpful for designing piezoelectric actuators and generators in a comprehensive manner.
Editor: Basel: MDPI AG
Idioma: Inglês

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