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1987 Fiscal Year Final Research Report Summary

Measuring system for mechanical properties of trouble-handring agricultural materials

Research Project

Project/Area Number 61560284
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field 農業機械
Research InstitutionIshikawa Agricultural College

Principal Investigator

MURASE Haruhiko  Asist.Prof.,Agri.Eng.Dept.,Ishikawa Agri.College, 農業工学科, 助教授 (20137243)

Co-Investigator(Kenkyū-buntansha) OKE Satoshi  Asistant,Agri.Eng.Dept.,Ishikawa Agri.College, 農業工学科, 助手 (80177203)
SHIBUSAWA Sakae  Asistant,Agri.Eng.Dept.,Hokkaido University, 農学部・農業工学科, 助手 (50149465)
NAKAMURA Yoshiaki  Professor,Agri.Eng.Dept.,Ishikawa Agri.College, 農業工学科, 教授 (50070842)
Project Period (FY) 1986 – 1987
KeywordsFinite element / inverse analysis / Plant materials / Physical properties / agricultural products / Young's modulus / Poisson'ratio / compression test / optical measurements
Research Abstract

The objective of this research project is to study basics of a sevelopment of total measuring system for determining the physical properties(Young's modulus,poison'sratio,water potential effective coefficients edt.) of plant materials whose handling is throublesome in the material tests due to their size,shape,inhomogeneity. The basic studies of this project dealt with a numerical data process system based on the finite element inverse analysis and a deformation measuring system using image processing technique.
The followings are reading findings and developments in this project.
1.A Finite element inverse analysis is implemented on a microcomputer.The FEM inverse program can handle 2 dimentional axisymmetric elasticity problems.
2.Tow different parameter estimation techniques were investigated in process of the development of FEM inverse code.
1)Least square estimation 2)Kalman filter estimation
3.Convergence of Kalman filter technique is much better than the least square technique.
4.Two different techniques were tested to determine the deformation of test piece under compression.
1)Infra red displacement sensing device 2)image processing device
5.The infra red sensing device was useful and effective only when hadling relatively larger test piece
6.The method using image processing device was more flexible to handling samples in many different sizes. yield based on land productivity.

  • Research Products

    (9 results)

All Other

All Publications (9 results)

  • [Publications] 村瀬治比古: 農業機械学会関西支部報. 61. 33-36 (1987)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 村瀬治比古: 農業機械学会関西支部報. 62. 123-124 (1987)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 村瀬治比古: 農業機械学会関西支部報. 63. 28-34 (1987)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 村瀬治比古: 石川県農業短期大学学術報告. 17. 32-40 (1987)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 村瀬治比古: 農業機械学会 関西支部報.

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] Murase,Haruhiko: "Estimation of physical properties of agricultural material using the finite element inverse analysis(1)" Kansai Branch Report of the Japanese Society of Agricultural Machinery. 61. 33-36 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Murase,Haruhiko: "Estimation of physical properties of agricultural material using the finite element inverse analsis(2)" Kansai Branch Report of the Japanese Society of Agricultural Machinery. 62. 123-124 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Murase,Haruhiko: "Estimation of physical properties of agricultural material using the finite element inverse analsis(3)" Kansai Branch Report of the Japanese Society of Agricultural Machinery. 63. 28-34 (1988)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Murase,Haruhiko: "Measuring system for mechanical properties of trouble-handring agricultural materials" Bulletin of the Ishikawa Agricultural College. 17. 32-40 (1987)

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

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Published: 1989-03-30  

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