Numerical Analysis of the Reaction Force of a Single Rice Stalk undergoing Forced Displacement

Y. Hirai, E. Inoue, K. Mori

研究成果: ジャーナルへの寄稿学術誌査読

8 被引用数 (Scopus)

抄録

In this study, the reaction force of a rice stalk undergoing forced displacement was analysed based on a mechanical model of a crop stalk. Horizontal and vertical reaction forces of a single rice stalk undergoing forced displacement were measured. The horizontal force increased linearly for small curvatures of the rice stalk; after that, force increments decreased with displacement due to large curvature of the stalk. The vertical reaction force had different tendencies, depending on the initial shape of the rice stalk. The main reason for the differences was a directional change in friction, depending on the initial shape. An intrinsic shape function of a rice stalk was proposed. An equation of curvature describing rice stalk bending was derived by considering the curvature due to intrinsic shape, and used for analysis of the reaction force. The analytical results coincided fairly well with measured values, and it was demonstrated that the reaction forces of a single rice stalk according to the initial shape was accurately predicted by numerical calculation.

本文言語英語
ページ(範囲)179-189
ページ数11
ジャーナルBiosystems Engineering
86
2
DOI
出版ステータス出版済み - 10月 1 2003

!!!All Science Journal Classification (ASJC) codes

  • 制御およびシステム工学
  • 食品科学
  • 動物科学および動物学
  • 農業および作物学
  • 土壌科学

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