基于ADAMS-EDEM耦合仿真的月壤挖掘阻力分析
Analysis of Lunar Soil Excavation Resistance Based on ADAMS-EDEM Coupling Simulation
张一平 1纪玉杰 1孙志礼1
作者信息
- 1. 沈阳理工大学机械工程学院,辽宁 沈阳 110159
- 折叠
摘要
围绕月球资源开发的需求,提出一种五杆月壤挖洞机构.运用封闭矢量环法进行运动学分析,得出该机构末端点位移方程.根据Bekker半经验公式和朗肯被动土压力理论分别对挖掘铲的铲尖及铲面进行受力分析,得出挖掘铲进行月壤挖洞时所受合力方程.运用ADAMS-EDEM耦合仿真验证上述力学模型,证明该模型对机构挖洞时的阻力具有预测作用.
Abstract
According to the demand of lunar resource exploitation,this paper proposes a five-bar mechanism for lunar soil excavation,and obtains the displacement equation of the end point of the mechanism by using closed-loop vector method.Forces on the tip and surface of the shovel are respectively analyzed according to Bekker's semi-empirical equation and Rankine's passive soil pressure theory,and the equation of the combined force on the shovel when excavating lunar soil is obtained.ADAMS-EDEM coupling simulation is applied to verify the above mechanical model,and it is proved that the model is able to predict the resistance on the mechanism during excavation.
关键词
五杆机构/挖洞机构/挖掘阻力分析/ADAMS-EDEM耦合仿真Key words
Five-bar mechanism/boring mechanism/excavation resistance analysis/ADAMS-EDEM coupling simulation引用本文复制引用
基金项目
国家自然科学基金资助项目(51775097)
出版年
2024
NETL
NSTL
万方数据