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

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...

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Bibliographic Details
Published inApplied sciences Vol. 8; no. 10; p. 1779
Main Authors Liu, Xinnan, Wang, Jianjun, Li, Weijie
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.10.2018
Subjects
actuator
Civil engineering
dynamic analytical solution
Dynamic characteristics
Elasticity
Electric fields
Energy
Exact solutions
generator
Mechanical components
Piezoelectric actuators
piezoelectric stack
sensor
Stacks
Theory
Ultrasonic transducers
Beijing China
China
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Summary: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.
ISSN:2076-3417
2076-3417
DOI:10.3390/app8101779