用于月面车辆力学试验的模拟月壤研究

研究月面环境下的车辆地面力学,对保证月球探测车辆的正常工作具有重要意义,而用于月面车辆力学试验的模拟月壤则影响其结果的准确度与可信度.用于月面车辆力学试验的模拟月壤,以月壤样本与JSC-1模拟月壤为参考标准,以吉林辉南县火山灰为主要原料、赤铁矿砂为辅料,通过调整试样的粒径分布与赤铁矿砂含量,使模拟月壤的比重、内摩擦角、凝聚力、承压特性、粒径分布、颗粒形态、矿物组成等参数接近JSC-1模拟月壤,并在月壤样本的参数变化范围之内,表明该模拟月壤可用于月面车辆力学试验研究.

Lunar soil simulant for vehicle-terramechanics research in labtory

It is important to research the relationship on the vehicle-terramechanics in lunar surface circumstances for the lunar rover to work according to schedule. However the regolith used in the laboratory test will greatly influence the precision and reliability of the test results. The regolith research based on the data of lunar soil specimen and the JSC-1 simulant lunar soil, the eruption is used as the basic material, and some hematite were added as regulator. Parameters of simulant lunar soil were measured, such as specific gravity, angle of internal friction, cohesion, grain size distribution, and mineralogy chemical composition. The results showed that parameters of simulant lunar soil in this test were close to the parameters of the lunar soil after adjusting grain size and proportion of added hematite sands. The simulant lunar soil could be used for the basic test of the terramechanics on moon in near future.