一种用于螺旋涡旋地力学研究的新型仪器的设计与实现

IF 2.4 3区 工程技术 Q3 ENGINEERING, ENVIRONMENTAL Journal of Terramechanics Pub Date : 2023-11-20 DOI:10.1016/j.jterra.2023.11.001
Manmeet Brar, Jorge Villacrés, Shayan Meschian, Martin Barczyk, Michael Lipsett
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引用次数: 0

摘要

在评估车辆在复杂地形上的机动效率时,对车轮与地面之间的力相互作用进行建模是必要的。承载强度低的软土对轮式车辆来说是一种特别困难的介质。螺旋卷轴作为车轮的替代品已经显示出了希望,它可以在一系列地形上工作,需要详细的地形力学研究来模拟它们的能力。现有的大多数地形力学文献都局限于车轮,并且通常使用仪器来研究固定几何形状的单个车轮。本文描述了一种能够容纳一系列涡旋几何形状和配置的新型装置的设计和实现。该装置包括土壤容器、以两种操作配置驱动卷轴的载体以及使载体进行垂直和水平运动的周围框架。小车配备了驱动系统和仪器来测量下沉、应力和拉杆拉力值,这是地形力学表征所需的。三种不同涡旋结构的初始应力-沉陷曲线与预期结果一致,证明了所提出的仪器可以成功测量不同的几何参数,并可用于进一步的地形力学表征。
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Design and implementation of a novel apparatus for terramechanics studies of helical scrolls

Modeling the force interaction between a wheel and the ground is necessary when evaluating the effectiveness of a vehicle’s mobility on challenging terrain. Soft soils with low bearing strength are a particularly difficult medium for wheeled vehicles. Helical scrolls have shown promise as an alternative to wheels which can work across a range of terrains, warranting a detailed terramechanics study to model their capabilities. Most of the existing terramechanics literature is limited to wheels and often employs an apparatus to study single wheels in a fixed geometry.

This paper describes the design and implementation of a novel apparatus capable of housing a range of scroll geometries and configurations. The apparatus is comprised of a soil container, carriage to drive the scroll in two operating configurations, and a surrounding frame that enables both vertical and horizontal motions of the carriage. The carriage is outfitted with a drive system and instrumentation to measure the sinkage, stress, and drawbar pull values required for a terramechanics characterization. Initial stress-sinkage curves for three different scroll configurations align with expected results and provide a proof of concept that the proposed apparatus can successfully measure differing geometric parameters and can be used for further terramechanics characterizations.

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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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