Thermo-Piezoelectric Finite Element Modeling for Piezoelectric Transformers

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概要

• 論文の詳細を見る

• In this paper, we present the development of an efficient three-dimensional finite-element tool, NTUPZE-T, for analyzing the thermal effect of piezoelectric transformers. The tool combines a finite-element piezoelectric solver and a finite-element thermal solver to estimate the temperature distribution during device operation. Device dissipation energy was calculated by considering internal damping effects. This energy is considered as the heat source of the heat transfer equation for estimating the device temperature distribution. Since the material properties of piezoelectric materials are dependent on temperature, a self-consistent thermo-piezoelectric analysis procedure using the relaxation algorithm is proposed. The modeling results of a Rosen-modal-type piezoelectric transformer under different operating frequencies and electrical loads are presented. The experimental setup for measuring the device electrical performance and temperature distribution is described. Simulated voltage gains, phase differences, efficiencies, as well as temperature distributions are also validated with experimental results.

• Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
• 2008-04-25

著者

• Lee Chih-kung

  Institute Of Applied Mechanics National Taiwan University

• Chen Chien-cheng

  Department Of Biotechnology National Kaohsiung Normal University

• Yang Yao-Joe

  Department of Mechanical Engineering, National Taiwan University, No. 1 Roosevelt Rd., Sec. 4, Taipei, Taiwan, R.O.C.

• Yang Yao-Joe

  Department of Mechanical Engineering, National Taiwan University, No. 1, Roosevelt Rd., Sec. 4, Taipei 106, Taiwan

• Kuo Chi-Wei

  Department of Mechanical Engineering, National Taiwan University, No. 1, Roosevelt Rd., Sec. 4, Taipei 106, Taiwan

• Lee Chih-Kung

  Institute of Applied Mechanics, National Taiwan University, No. 1, Roosevelt Rd., Sec. 4, Taipei 106, Taiwan

• Chen Chien-Cheng

  Department of Mechanical Engineering, National Taiwan University, No. 1, Roosevelt Rd., Sec. 4, Taipei 106, Taiwan

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