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2013 Fiscal Year Final Research Report

Development of a FE-DEM analysis with element transfer function and its application to contact problems in terramechanics

Research Project

  • PDF
Project/Area Number 23580359
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Agricultural information engineering
Research InstitutionKyoto University

Principal Investigator

NAKASHIMA Hiroshi  京都大学, (連合)農学研究科(研究院), 准教授 (80172302)

Project Period (FY) 2011 – 2013
Keywordsシミュレーション工学 / テラメカニックス / GPU / 有限要素法 / 離散要素法 / 要素変換 / けん引性能 / 農用タイヤ
Research Abstract

The discrete element method (DEM) has become popular as a numerical tool to analyze the contact problems between off-road terrain and running devices or working tools of off-road vehicles. However, DEM analysis using the elements of real soil particles has not yet been realized, since DEM is based on the computation of contact judgment and contact reaction for all elements in the analysis. To realize the above-mentioned contact analysis, an approach such as FE-DEM analysis has been proposed by our group. In this study, a new idea of transferring elements between DEM and FEM is proposed so that the total number of necessary DEM elements around contact area can be reduced. A simple example of traction performance analysis of an agricultural tire was demonstrated by FE-DEM with the proposed element transfer function. The result of the analysis showed that the elapsed time of computation could be reduced to about 29 times smaller than the conventional FE-DEM with sufficient accuracy.

  • Research Products

    (13 results)

All 2014 2013 2012 2011

All Journal Article (3 results) (of which Peer Reviewed: 1 results) Presentation (10 results)

  • [Journal Article] FE-DEMによる車輪の走行性能解析と要素変換機能の検討2014

    • Author(s)
      吉田泰基,中嶋洋,清水浩,宮坂寿郎,大土井克明
    • Journal Title

      テラメカニックス

      Volume: 34 Pages: 113-118

  • [Journal Article] Investigation of elemental shape for 3D DEM modeling of interaction between soil and narrow cutting tool2013

    • Author(s)
      Ikuya Ono, Hiroshi Nakashima, Hiroshi Shimizu, Juro Miyasaka, Katsuaki Ohdoi
    • Journal Title

      Journal of Terramechanics

      Volume: 50(4) Pages: 265-276

    • DOI

      10.1016/j.jterra.2013.09.001

    • Peer Reviewed
  • [Journal Article] FE-DEMによる弾性車輪のけん引性能解析2012

    • Author(s)
      小野智美,中嶋洋,清水浩,宮坂寿郎,大土井克明
    • Journal Title

      テラメカニックス

      Volume: 32 Pages: 21-26

  • [Presentation] FE-DEM解析における要素変換機能の検討2013

    • Author(s)
      吉田泰基,中嶋洋,清水浩,宮坂寿郎,大土井克明
    • Organizer
      テラメカニックス研究会第34回研究会
    • Place of Presentation
      沖縄県石垣市
    • Year and Date
      2013-12-14
  • [Presentation] 車輪走行性能のDEM解析における並列計算について2013

    • Author(s)
      中嶋洋,吉田泰基,清水浩,宮坂寿郎,大土井克明
    • Organizer
      テラメカニックス研究会第34回研究会
    • Place of Presentation
      沖縄県石垣市
    • Year and Date
      2013-12-14
  • [Presentation] Calibration of model parameters in 2D DEM for soil-grouser system2013

    • Author(s)
      H. Nakashima, T. Yoshida, X.L. Wang, H. Shimizu, J. Miyasaka, K. Ohdoi
    • Organizer
      7th Americas Conf. ISTVS
    • Place of Presentation
      Tampa, USA
    • Year and Date
      2013-11-05
  • [Presentation] 離散要素法と有限要素法の要素変換解析の試み—予報:物理量の対応2013

    • Author(s)
      中嶋洋,吉田泰基,清水浩,宮坂寿郎,大土井克明
    • Organizer
      農業食料工学会第回年次大会
    • Place of Presentation
      北海道帯広市
    • Year and Date
      2013-09-12
  • [Presentation] FE-DEM解析における新たな試み(予報)2012

    • Author(s)
      中嶋洋,吉田泰基,小野育也,清水浩,宮坂寿郎,大土井克明
    • Organizer
      テラメカニックス研究会第33回研究会
    • Place of Presentation
      宮城県南三陸町
    • Year and Date
      2012-10-12
  • [Presentation] Effect of elemental shape on cutting resistance in DEM analysis of soil-blade system2012

    • Author(s)
      I. Ono, H. Nakashima, H. Shimizu, J. Miyasaka, K. Ohdoi
    • Organizer
      12th European Conference of ISTVS
    • Place of Presentation
      Pretoria, South Africa
    • Year and Date
      2012-09-26
  • [Presentation] 3次元離散要素法による乾燥砂を用いた平刃切削の抵抗力シミュレーション—計算における粒子形状の影響について—2012

    • Author(s)
      小野育也,中嶋洋,清水浩,宮坂寿郎,大土井克明
    • Organizer
      農業環境工学関連学会2012年合同大会
    • Place of Presentation
      栃木県宇都宮市
    • Year and Date
      2012-09-12
  • [Presentation] 履板の推進力解析への離散要素解析の適用に関する検討2012

    • Author(s)
      中嶋洋,吉田泰基,王秀崙,清水浩,宮坂寿郎,大土井克明
    • Organizer
      農業環境工学関連学会2012年合同大会
    • Place of Presentation
      栃木県宇都宮市
    • Year and Date
      2012-09-12
  • [Presentation] FE-DEMによる弾性車輪のけん引性能解析2011

    • Author(s)
      小野智美,中嶋洋,清水浩,宮坂寿郎,大土井克明
    • Organizer
      テラメカニックス研究会第32回研究会
    • Place of Presentation
      広島県呉市
    • Year and Date
      2011-11-18
  • [Presentation] 履板の推進力へのグローサパラメータの影響のDEM解析2011

    • Author(s)
      中嶋洋,王秀崙,吉田泰基,清水浩,宮坂寿郎,大土井克明
    • Organizer
      テラメカニックス研究会第32回研究会
    • Place of Presentation
      広島県呉市
    • Year and Date
      2011-11-18

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Published: 2015-07-16  

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