A photoelastic method for stress analysis of granular terrain beneath a wheel

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.2023.08.003
Yuto Yoshida, Hikari Sakada, Sota Yuasa, Kenji Nagaoka
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车轮下颗粒状地形应力分析的光弹性方法
本文提出了一种光弹性法分析行走轮下颗粒状地形的应力。近年来,人们利用粒子测速和机器学习等先进技术研究了车轮的地形力学。但是,目前还没有直接观测到应力在土壤中的动态分布。在本文中,我们提出了一种光弹性方法来实验证明颗粒状地形的二维应力分析。该方法使用光弹性圆盘作为地形粒子;因此,颗粒状地形的内应力和传播可以利用光的干涉条纹可视化。本研究旨在观察颗粒的动态行为,通常模拟颗粒地形中的圆形或球形物体。为了演示模拟地面的光弹性方法,我们开发了一个使用光弹性材料的单轮试验台。此外,研究了与非光弹性材料混合的影响,以模拟小轮滑和大轮滑条件下的稳态。本文对单个行走轮下的光弹性粒子进行了力链分析。对力链结构的传播角和长度进行几何比较。此外,还定量评价了小轮滑移和大轮滑移情况下力链的方向顺序。实验结果证实,光弹性方法可以揭示车轮下颗粒状地形在不同滑移条件下内应力结构的动态变化。
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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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