基于物理力学的柔性作物茎秆计算机可视化仿真
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1.江西农业大学计算机与信息工程学院;2.江西农业大学软件学院;3.江西省科学院应用物理研究所

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TP391.9

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江西省自然科学(20212BAB202015);江西省03专项及5G项目(20232ABC03A18)


Computer Visualization Simulation of Flexible Crop Stalk Based on Physical Mechanics
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Jiangxi Agricultural University

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    摘要:

    作物茎秆在生长期易发生弯曲变形,给计算机可视化仿真带来挑战。本研究采用微分分析方法,探究茎秆物理应力应变关系,提出柔性茎秆可视化仿真方法:首先建立拉伸、弯曲、剪切和扭转载荷下的茎秆力学模型;其次构建基于半边结构和曲面造型的几何模型;最后采用C++和OpenGL实现可视化仿真。实验分析不同品种茎秆弯曲应力应变,结果表明该方法可较准确模拟茎秆形变过程,基于物理力学的模型可确保弯曲仿真精度,为选育抗倒伏品种提供新型信息化分析工具。

    Abstract:

    During growth, crop stalks are prone to bending deformation, posing challenges for computer visualization simulation. This study employs a differential analysis method to investigate the physical stress-strain relationship of stalks. It proposes a visualization simulation method for flexible stalks. First, a mechanical model of the stalk under tensile, bending, shear, and torsional loads is established. Second, a geometric model based on a semi-structural approach and surface modeling is constructed. Finally, C++ and OpenGL are utilized to implement the visualization simulation. Experimental analysis of the bending stress-strain characteristics of stalks from different varieties is conducted. The results demonstrate that this method can relatively accurately simulate the deformation process of stalks. The physics-based model ensures the accuracy of bending simulation, providing a novel informatics analysis tool for selecting and breeding lodging-resistant crop varieties.

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易文龙,魏春华,张训胜,等. 基于物理力学的柔性作物茎秆计算机可视化仿真[J]. 科学技术与工程, , ():

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历史
  • 收稿日期:2023-10-04
  • 最后修改日期:2024-05-24
  • 录用日期:2024-05-29
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