月壤岩土工程问题研究进展

发布时间：2018-04-07 15:44

本文选题：模拟月壤　切入点：抗剪强度　出处：《浙江大学学报(工学版)》2012年05期

【摘要】：针对中国探月工程开展过程中遇到的月壤特性问题,综述国内外月壤的基本物理力学性质以及模拟月壤和机构相互作用的研究现状.给出模拟月壤的粒度分布、密度、孔隙比、强度指标和压缩指数等几参数的取值范围.总结出模拟月壤三轴试验的主要控制指标有:相对密度、围压、剪切速率等,并简要分析高真空度对模拟月壤性质的影响.通过对月球车研制中月壤对车轮牵引特性的影响、软着陆中月壤对足垫冲击响应等研究的发展现状的回顾,指出离散元方法在月壤特性分析和机构与模拟月壤相互作用等领域的应用前景.针对新型模拟月壤研制、模拟月壤本构关系和多种月面环境耦合下对月壤性能的影响等亟待解决的问题.
[Abstract]:Aiming at the characteristics of lunar soil in the process of lunar exploration project in China, this paper summarizes the basic physical and mechanical properties of lunar soil at home and abroad and the research status of simulating the interaction between lunar soil and mechanism.The range of parameters such as particle size distribution, density, void ratio, strength index and compression index are given.The main control indexes of simulated lunar soil triaxial test were summarized, such as relative density, confining pressure, shear rate, etc. The influence of high vacuum on the properties of simulated lunar soil was analyzed briefly.This paper reviews the development of the research on the influence of lunar soil on the wheel traction characteristics and the impact response of the soft landing lunar soil to the foot pad in the development of the lunar rover.The application prospect of discrete element method in the analysis of lunar soil characteristics and the interaction between mechanism and simulated lunar soil is pointed out.In order to solve the problems such as the development of new simulated lunar soil, the constitutive relationship of lunar soil and the effect of coupling of lunar surface environment on the performance of lunar soil, the problems need to be solved urgently.
【作者单位】：浙江大学软弱土与环境土工教育部重点实验室;
【基金】：国家自然科学基金项目(50778163)
【分类号】：P184

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