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Precision system to estimate an interaction between wheel and soil with the aim of sustainable agriculture

Research Project

Project/Area Number 11660253
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 農業機械学
Research InstitutionIwate University

Principal Investigator

HIROMA Tatsuo  Iwate University, Department of Agriculture, Associate Professor, 農学部, 助教授 (50003794)

Co-Investigator(Kenkyū-buntansha) KATAOKA Takashi  Hokkaido University, Graduate School of Agriculture, Associate Professor, 大学院・農学研究科, 助教授 (40231253)
OTA Yoshinobu  Iwate University, Department of Agriculture, Professor, 農学部, 教授 (60003787)
Project Period (FY) 1999 – 2000
Project Status Completed (Fiscal Year 2000)
Budget Amount *help
¥3,100,000 (Direct Cost: ¥3,100,000)
Fiscal Year 2000: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1999: ¥2,600,000 (Direct Cost: ¥2,600,000)
Keywordssustainable agriculture / finite element method / three-dimensional analysis / soil compaction / stress in soil / wheel width / tractive performance / interaction between a wheel and soil / 土壌圧縮 / 土・車輪相互作用 / 3次元有限要素法 / 粘弾性モデル / 接地応力 / 土の圧縮
Research Abstract

In this study, in order to control soil compaction with the aim of sustainable agricultural and to exchange low tractive efficiency at low slippage by applying wider wheel, a precision system to estimate an interaction between wheel and soil was developed.
The effect of the width of the wheel was analyzed using a three-dimensional finite element method. However, the calculation of the result for new width and slip condition required much time. Therefore, a artificial neural network mode was developed. The model was trained using set of data from the finite element calculation. The artificial neural network model facilitated the estimation of the interaction between wheel and soil. The soil model used in the study is a combination of the viscoelastic model under a loading stress state and an elastic mode under an unloading stress state.
To study the effect of the width of a wheel on tractive performance, the width of the wheel was varied from 90mm to 175mm while holding the diameter at 451mm and the load at 1.09kN.The artificial neural network model demonstrated a good generalization of the relations between traction performance and slippage. Furthermore, the model indicated that a wider wheel causes a decrease in contact normal stress, an increase in net traction and tractive efficiency, and also a decrease in slippage at the tractive efficiency, and also decrease in slippage at the maximum tractive efficiency. Thus, it is effective to use a wider wheel not only to have a little effect on soil compaction but also to improve the tractive performance.

Report

(3 results)
  • 2000 Annual Research Report   Final Research Report Summary
  • 1999 Annual Research Report

Research Products

(10 results)

All Other

All Publications (10 results)

  • [Publications] 広間達夫 他: "土中応力の3次元解析プログラムの開発"農業機械学会東北支部報. 46. 19-22 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 広間達夫 他: "車輪走行性能の3次元解析-3次元表示-"テラメカニックス. 20. 95-100 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 広間達夫 他: "有限要素法を用いた車輪走行性能の3次元解析"農業機械学会東北支部報. 47. 1-6 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Tatsuo Hiroma et al.: "Development of tree dimensional analysis program for stress in soil under a running wheel"Tohoku Branch Report of the JSAM. No.46. 19-22 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Tatsuo Hiroma et al.: "Three-dimensional analysis for the performance of a rigid wheel -Three-dimensional visualization-"Terramechanics. Vol.20. 95-100 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] Tatsuo Hiroma et al.: "Three-dimensional finite element analysis for tractive performance of rigid wheel"Tohoku Branch Report of the JSAM. No.47. 1-6 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2000 Final Research Report Summary
  • [Publications] 広間達夫 他: "土中応力の3次元解析プログラムの開発"農業機械学会東北支部報. 46. 19-22 (1999)

    • Related Report
      2000 Annual Research Report
  • [Publications] 広間達夫 他: "車輪走行性能の3次元解析-3次元表示-"テラメカニックス. 20. 95-100 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 広間達夫 他: "有限要素法を用いた車輪走行性能の3次元解析"農業機械学会東北支部報. 47. 1-6 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 広間達夫: "土中応力の3次元解析プログラムの開発"農業機械学会東北支部報. 46号. 19-22 (1999)

    • Related Report
      1999 Annual Research Report

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Published: 1999-03-31   Modified: 2016-04-21  

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