利用 TRR 算法预测越野车与土壤相互作用的地形变形模式

IF 2.4 3区 工程技术 Q3 ENGINEERING, ENVIRONMENTAL
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引用次数: 0

摘要

土壤变形是影响越野车牵引力、机动性和转向等性能的参数之一。本研究对与气动轮和履带轮相互作用产生的土壤变形进行了研究。实验使用土壤仓和单轮试验台进行,试验台配备了标准农用轮胎和定制履带轮。使用轮式测试仪施加了三个不同水平的垂直荷载(2、3 和 4kN)和前进速度(1、2 和 3 km/h)。土层的位移和变形沿运动轨迹以垂直横截面的形式呈现,所有实验都进行了统一的准备和拍照。使用 MATLAB 软件进行图像分析,以缩放图像并提取图形数据。变形量最大的是与力为 4 千牛的气动轮相互作用时,变形量为 60.86 毫米;而变形量最小的是与力为 2 千牛的履带轮相互作用时,变形量为 25.05 毫米。此外,利用优化算法获得的拟合曲面与实验数据的收敛性良好,充气轮胎和履带轮胎的 R2 值分别为 0.9783 和 0.9516。结果表明,TRR 模型在准确预测各种车轮引起的土壤变形方面表现良好。对履带车轮和充气车轮引起的土壤变形进行比较后发现,履带车轮引起的变形和扰动较小,尤其是在土壤上层。这些发现强调了在评估农业环境中的土壤变形时考虑牵引装置类型和负载条件的重要性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Predicting terrain deformation patterns in off-road vehicle-soil interactions using TRR algorithm
Soil deformation is one of the parameters affecting the performance of off-road vehicles, including traction, mobility, and steering. This study offers an examination of soil deformation resulting from interactions with pneumatic and track wheels. Experiments were conducted using a soil bin with a single-wheel test rig, equipped with both a standard agricultural tire and a customized track wheel. Three distinct levels of vertical loads (2, 3, and 4kN) and forward velocities (1, 2, and 3 km/h) were applied using the wheel tester. The displacement and deformation of the soil layers, visualized as a vertical cross-section along the motion path, were consistently prepared and photographed for all experiments. Image analysis was undertaken with MATLAB software to scale images and extract graphical data. The highest deformation, with a value of 60.86 mm, is associated with the interaction of a pneumatic wheel with a force of 4 kN, while the lowest deformation occurs when the soil interacts with a track wheel with a force of 2 kN, with a value of 25.05 mm. Furthermore, the fitted surfaces obtained using the optimization algorithm showed good convergence with the experimental data, with R2 values of 0.9783 and 0.9516 for the pneumatic tire and tracked tire, respectively. The results demonstrated that the TRR model performs well in accurately predicting soil deformation induced by various types of wheels. A comparison between soil deformations caused by track wheels and pneumatic wheels revealed that track wheels result in less deformation and disturbance, particularly in the upper soil layers. These findings underscore the importance of considering the type of traction device and loading conditions when assessing soil deformation in agricultural environments.
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来源期刊
Journal of Terramechanics
Journal of Terramechanics 工程技术-工程:环境
CiteScore
5.90
自引率
8.30%
发文量
33
审稿时长
15.3 weeks
期刊介绍: The Journal of Terramechanics is primarily devoted to scientific articles concerned with research, design, and equipment utilization in the field of terramechanics. The Journal of Terramechanics is the leading international journal serving the multidisciplinary global off-road vehicle and soil working machinery industries, and related user community, governmental agencies and universities. The Journal of Terramechanics provides a forum for those involved in research, development, design, innovation, testing, application and utilization of off-road vehicles and soil working machinery, and their sub-systems and components. The Journal presents a cross-section of technical papers, reviews, comments and discussions, and serves as a medium for recording recent progress in the field.
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