Development of three-dimensional tillage simulator forvarious soil

• Project/Area Number: 23780258
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Agricultural environmental engineering
• Research Institution: Kyushu University
• Principal Investigator: OKAYASU Takashi 九州大学, 大学院・農学研究院, 准教授 (70346831)
• Project Period (FY): 2011 – 2012
• Project Status: Completed (Fiscal Year 2012)
• Budget Amount: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000); Fiscal Year 2012: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000); Fiscal Year 2011: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
• Keywords: 耕うんシミュレータ / プラウ耕 / 三次元個別要素法 / パラメータ同定 / 三次元スキャナ / 耕うん実験装置.計算力学 / 耕うん実験装置 / 計算力学 / ロータリ耕 / 最適耕うん

Research Abstract

Tillage is one of important operations to improve and maintain crop soil condition in farmland. Developments of numerical analysis method have been tried to clarify the mechanism for soil-tillageinteraction phenomena and to reduce the developing time and costs in the present. In this study, the soil tillage simulator was developed based on a three-dimensional discrete element method. Soil resistances acting on plow surface and soil cutting phenomena were estimated in the simulation. The simulated results agreed qualitatively with the test results.

Research Products

• [Journal Article] Modeling and Prediction of the Mechanical Interaction between Soil and Tillage Tool by DEM (2013)
  • Author(s): Fukuda, T., Okayasu, T., Tsuchiya, K.(計 7 名 2 番)
  • Journal Title: Proceedings of International Conference on Analysis of Discontinuous Deformation (ICADD11) Pages: 6-6
  • Peer Reviewed
• [Journal Article] 小明渠作溝用サイドディスク設計のための有限要素法の適用性に関する研究 (2012)
  • Author(s): 大庭裕史,岡安崇史,寺尾悠希(計 7 名 2番)
  • Journal Title: 農業機械学会誌 Volume: 74(3) Pages: 207-212
  • NAID: 10030764281
  • Peer Reviewed
• [Journal Article] Modeling and prediction of soil cutting behavior by a plow (2012)
  • Author(s): Okayasu, T., Morishita, K., Terao, H.(計 6 名 1 番)
  • Journal Title: Proceedings of International Conference of Agricultural Engineering (CIGR2012) Pages: 6-6
• [Journal Article] Strength evaluation of bearing in sidedisk for cutting small ditches by finite element method (2012)
  • Author(s): Terao, H., Okayasu, T., Fkuda, K. (計6 名 2 番)
  • Journal Title: Proceedings of International Symposium on Machinery and Mechatronics for Agriculture and Bio-systems Engineering (ISMAB2012) Pages: 6-6
• [Journal Article] Modeling and prediction of soil cutting behavior by a plow (2012)
  • Author(s): Okayasu, T., Morishita, K., Terao, H., Muneshi, M., Inoue, E., Fukami, K.
  • Journal Title: Proc. CIGR2012 Volume: 1
• [Journal Article] Strength evaluation of bearing in sidedisk for cutting small ditches by finite element method (2012)
  • Author(s): Terao, H., Okayasu, T., Fkuda, K. Fukami, K., Mitsuoka, M., Inoue, E.
  • Journal Title: Proc. ISMAB2012 Volume: 1
• [Presentation] 摩擦接触を考慮した小明渠作溝用サイドディスクの 3 次元構造解析 (2012)
  • Author(s): 福田稔久・岡安崇史・寺尾悠希
  • Organizer: 第66回農業機械学会九州支部例会
  • Place of Presentation: 宮崎市
• [Presentation] 摩擦接触を考慮したサイドディスク軸受部の構造解析 (2012)
  • Author(s): 寺尾悠希,岡安崇史,福田稔久
  • Organizer: 農業環境工学関連学会 2012年合同大会
  • Place of Presentation: 宇都宮市
• [Presentation] 耕うん現象の三次元シミュレーションとその妥当性評価 (2012)
  • Author(s): 岡安崇史,福田稔久,森下 健
  • Organizer: 農業環境工学関連学会2012 年合同大会
  • Place of Presentation: 宇都宮市
• [Presentation] 摩擦接触を考慮した小明渠作溝用サイドディスクの3次元構造解析 (2012)
  • Author(s): 福田稔久・岡安崇史・寺尾悠希・深見公一郎・光岡宗司・井上英二
  • Organizer: 第６６回農業機械学会九州支部例会
  • Place of Presentation: 宮崎
• [Presentation] 摩擦接触を考慮したサイドディスク軸受部の構造解析 (2012)
  • Author(s): 寺尾悠希，岡安崇史，福田稔久，深見公一郎，光岡宗司，井上英二
  • Organizer: 農業環境工学関連学会2012年合同大会
  • Place of Presentation: 宇都宮
• [Presentation] 岡安崇史，福田稔久，森下 健，深見公一郎，光岡宗司，井上英二 (2012)
  • Author(s): 耕うん現象の三次元シミュレーションとその妥当性評価
  • Organizer: 農業環境工学関連学会2012年合同大会
  • Place of Presentation: 宇都宮
• [Presentation] Modeling and prediction of soil cutting behavior by a plow (2012)
  • Author(s): Okayasu, T., Morishita, K., Terao, H., Muneshi, M., Inoue, E., Fukami, K.
  • Organizer: CIGR2012
  • Place of Presentation: Valencia, Spain
• [Presentation] Strength evaluation of bearing in sidedisk for cutting small ditches by finite element method (2012)
  • Author(s): Terao, H., Okayasu, T., Fkuda, K. Fukami, K., Mitsuoka, M., Inoue, E.
  • Organizer: ISMAB2012
  • Place of Presentation: Jeonju, Korea
• [Presentation] 三次元有限要素解析による小明渠作溝用サイドディスク軸受部の強度評価 (2011)
  • Author(s): 寺尾悠希,岡安崇史,大庭裕史
  • Organizer: 第65回農業機械学会九州支部例会
  • Place of Presentation: 那覇市
• [Presentation] 小明渠作溝用サイドディスク設計への三次元有限要素法の適用とその評価 (2011)
  • Author(s): 岡安崇史,大庭裕史,寺尾悠希
  • Organizer: 第70回農業機械学会年次大会
  • Place of Presentation: 弘前市
• [Presentation] 個別要素法(DEM)を用いた耕うん現象の予測とその妥当性の評価 (2011)
  • Author(s): 森下健,岡安崇史,深見公一郎
  • Organizer: 第70回農業機械学会年次大会
  • Place of Presentation: 弘前市