Numerical analysis of wheel locomotion on soft soil using the extended terramechanics model based on cellular automata

IF 2.4 3区 工程技术 Q3 ENGINEERING, ENVIRONMENTAL Journal of Terramechanics Pub Date : 2023-01-01 DOI:10.1016/j.jterra.2023.05.005
Yutaro Watanabe , Shingo Nakano , Hirotaka Suzuki , Shingo Ozaki
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基于元胞自动机的扩展地形力学模型的软土地基车轮运动数值分析
月球/行星探测车的运行性能评估是科学任务和人类空间探索的主要方面。然而,传统的模型缺乏对车轮与软土之间力学相互作用的详细描述。因此,在本研究中,考虑了基于元胞自动机的土壤变形作用,研究了扩展terramechanics (xTerramechanics)模型对漫游车行驶性能评价的有效性。首先,将单轮行驶分析结果与强制滑移工况下的试验结果进行了比较,结果表明,单轮行驶分析结果具有较好的拉拔和下沉表征精度(平均绝对误差小于5.5 N和3.2 mm)。接下来,我们将xTerramechanics模型应用于恒拖载和爬坡自行式行驶条件下。该模型成功地再现了著名的“旅行表现的差异取决于旅行条件”。此外,我们将该模型用于简单漫游车的多体动力学分析,并证明了其对车辆整体性能和多径效应检验的适用性。
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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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