Evaluation of Turnability for Tracked Vehicle. (Part 1) Comparison between Spin and Pivot Turn Systems.

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  • ITO Nobutaka
    Department of Bioproduction and Machinery, Faculty of Bioresources, Mie University
  • KITO Koji
    Department of Bioproduction and Machinery, Faculty of Bioresources, Mie University
  • BAI Jie
    Department of Bioproduction and Machinery, Faculty of Bioresources, Mie University

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Other Title
  • 履帯式車両の旋回性の評価について（第１報）　超信地旋回と信地旋回
  • リタイシキ シャリョウ ノ センカイセイ ノ ヒョウカ ニ ツイテ 1 チョウ
  • Comparison between Spin and Pivot Turn Systems
  • 超信地旋回と信地旋回

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Turnability has generally been discussed and evaluated from the viewpoints of turning radius, turning motion resistance and required time for completing the turning motion of tracked vehicle. An additional evaluation can be done, for the track type agricultural vehicle such as rice combine harvester, by the disturbance of top soil during the turning motion. In this paper, the area of the top soil disturbed due to turning motion for two types of turning methods, spin and pivot turn, was discussed based on the theoretical approach and the experimental results. It was found from the discussion that the disturbed area for pivot turn method was almost 1.7 times of the spin turn.

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