滑移线连续和平稳分布的变径车轮设计

doi:10.3969/j.issn.1004-132X.2022.07.004

摘要/Abstract

摘要： 基于轮地接触动力学理论，设计出一种适应沙壤土环境、具有内外双层紧贴刚性轮片和中部轮刺的新型变径车轮。分析了变径轮不同断面与土壤的作用机理和土壤流动滑移模型，通过对滑移线公式详细推导和数值计算，获得其滑移半径和等效轮周的变化规律，提出了以断面高度为主、倾角为辅的设计思想。建立了满足平稳和连续滑移线模型的剪切滑移交错层断面（可调轮刺）高度与倾角和变径比的函数关系。

关键词: 变径轮, 轮地作用, 地面力学, 轮刺, 滑移线

Abstract: Based on theories of wheel terrain contact dynamics, a new type of diameter-variable wheel, which was fit for sandy soil, with close fitting inner and outer double layers’ rigid rim and a central grouser was designed. The interaction mechanism between different sections of diameter-variable wheel and soil, and the soil flow slip model were analyzed. Through the detailed derivation and numerical calculation of the soil slip-line formulas, slip-line radius and equivalent wheel rim of the diameter-variable wheel were proposed. And then, the design ideas that the height of shear-slip section as main factor and inclination angel as auxiliary factor was put forward. The functional relationship among the height of shear-slip cross-section(the adjustable grouser) and inclination angle, and diameter ratio in smooth continuous slip-line model was established.

Key words: diameter-variable wheel, wheel soil interaction, terramechanics, grouser, slip line

中图分类号:

殷勇辉, 陈司晨. 滑移线连续和平稳分布的变径车轮设计[J]. 中国机械工程, 2022, 33(07): 786-796.

YIN Yonghui, CHEN Sichen. Design of Diameter-variable Wheels Based on Continuity and Steady Distribution of Slip Line[J]. China Mechanical Engineering, 2022, 33(07): 786-796.

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链接本文: http://www.cmemo.org.cn/CN/10.3969/j.issn.1004-132X.2022.07.004

http://www.cmemo.org.cn/CN/Y2022/V33/I07/786

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