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1997 Fiscal Year Final Research Report Summary

Fundamental Research on Self-Controllable Solid State Actuator

Research Project

Project/Area Number 07650128
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Materials/Mechanics of materials
Research InstitutionTsuyama National College of Technology

Principal Investigator

ASHIDA Fumihiro  Tsuyama National College of Technology, Department of Electronics and Control Engineering, Associate Professor, 電子制御工学科, 助教授 (60149961)

Project Period (FY) 1995 – 1997
KeywordsIntelligent Structure / Solid State Actuator / Piezoelectric Ceramics / Elasticity / Thermoelasticity / Piezothermoelasticity / Three Dimensional Analysis
Research Abstract

A solid state actuator which was automatically adaptable to temperature change of the surrounding medium was investigated. The solid state actuator was constructed of an isotropic structural layr and many piezoelectric ceramic layrs. Summary of the results derived from the analyzes and numerical simulations is as follows.
(1) Summary of the results obtained in 1995 :
A two-layred composite plate constructed of an isotropic structural layr and a piezoelectric ceramic layr was considered. When the temperature of the surrounding medium was changed, an appropriate electric potential difference applied to the piezoelectric ceramic layr which controlled a normal elastic displacement on the free surface of the isotropic structural layr was derived. Therefore, the concept of the solid state actuator automatically adaptable to the temperature change of the surrounding medium cloud be examined.
(2) Summary of the results obtained in 1996 :
First, the two-layred composite plate subjected to a transient thermal load was analyzed. Numerical results for the transient applied electric potential difference were obtained. Next, a three-layred composite plate constructed of an isotropic structural layr and two piezoelectric ceramic layrs was considered. It was shown that the applied electric potential difference in the case of three-layred composite plate was reduced about 40% in comparison with that in the case of two-layred composite plate.
(3) Summary of the results obtained in 1997 :
A multi-layred composite plate constructed of an isotropic structural layr and many piezoelectric ceramic layrs was considered. It was shown from the numerical results that the applied electric potential difference decreased as the number of the piezoelectric ceramic layrs increased or the thicknesses of the piezoelectric ceramic layrs decreased. The analytical and numerical results which are necessary for the optimal design of the self-controllable solid state actuator will be published.

  • Research Products

    (8 results)

All Other

All Publications (8 results)

  • [Publications] 崔, 野田, 芦田: "定常熱負荷を受ける等方性材料と圧電セラミックスの二層複合平板の熱応力" 日本機械学会論文集(A編). 62・601. 2097-2103 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 芦田, 野田: "圧電セラミックス平板に装着された等方性平板の垂直弾性変位の制御" 日本機械学会論文集(A編). 63・613. 947-1954 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] F.Ashida, J.Choi, N.Noda: "Control of Elastic Displacement in Piezoeletric-Based Intelligent Plate Subjected to Thermal Load" International Journal of Engineering Science. 35・9. 851-868 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] F.Ashida, N.Noda: "Control of Transient Thermoelastic Displacement of an Isotropic Plate Associated with a Piezoelectric Ceramic Plate" Journal of Thermal Stresses. 20・3-4. 407-427 (1997)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] J.Choi, N.Noda, F.Ashida: "Piezothermoelasticity in a Two-Layred Composite Plate Constructed of an Isotropic Material and a Piezoelectric Ceramics" Trans.JSME(A). 62-601. 2097-2103 (1996)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] F.Ashida, N.Noda: "Control of Thermally Induced Normal Elastic Displacement of an Isotropic Plate Bonded to a Piezoelectric Ceramic Plate" Trans.JSME(A). 63-613. 1947-1954 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] F.Ashida, J.Choi and N.Noda: "Control of Elastic Displacement in Piezolectric-Based Intelligent Plate Subjected to Thermal Load" International Journal of Engineering Science. 35-9. 851-868 (1997)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] F.Ashida and N.Noda: "Control of Transient Thermoelastic Displacement of an Isotropic Plate Associated with a Piezoelectric Ceramic Plate" Journal of Thermal Stresses. 20-3/4. 407-427 (1997)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1999-03-16  

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