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http://dx.doi.org/10.7736/KSPE.2015.32.8.735

Numerical Analysis of Deformation Mode of Flexible Plate-Type Piezoelectric Module for Evaluating Characteristics of Electrical-Energy Generation  

Park, Jeong-Hyun (Graduate School of Mechanical Engineering, Pusan National University)
Park, Sang-Hu (School of Mechanical Engineering, ERC/NSDM, Pusan National University)
Publication Information
Journal of the Korean Society for Precision Engineering / v.32, no.8, 2015 , pp. 735-741 More about this Journal
Abstract
Piezoelectric materials are well-utilized for transforming mechanical vibrations into electrical energy that can be stored and used to power a diversity of devices. In this work, these materials have been studied to improve the efficiency of a piezoelectric system, whereby the shape and vibration mode of a piezoelectric module was changed. The basic shape of the piezoelectric module used in this work comprises a width of 10 mm, a length of 30 mm, and a thickness of 0.2 mm. The structural design of the piezoelectric module is optimized using a Taguchi method to increase the corresponding electrical-energy generation. The maximum terminal voltage was defined as a characteristic value to evaluate the optimal design parameters. Through this work, we propose an optimal structure with an eccentric and centric mass; furthermore, the voltage increase of approximately 26% was obtained by comparing a general plate-vibrating piezosystem with an optimal plate-vibrating piezosystem.
Keywords
Piezoelectric material; Electrical energy generation; Optimal structure; Vibration modes;
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Times Cited By KSCI : 4  (Citation Analysis)
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