“嫦娥三号”巡视器热试验月面姿态模拟装置研制

月面巡视器在月表移动的过程中,月面起伏和月球(1/6)g重力会对巡视器的热控系统产生不利影响,因此需要在地面试验时对巡视器的热控系统的功能进行验证。文章通过对运动机构在真空低温环境下的适应性研究,研制了一套可以满足"嫦娥三号"巡视器真空热试验中使用的月表姿态模拟装置,该模拟装置通过2套螺旋升降机构实现了巡视器的俯仰和滚动模拟,并经过初样、正样热试验的2次大型试验的使用验证,圆满完成了试验任务,也为以后热试验中运动工装的设计奠定了基础。

Design of tilt attitude simulator for thermal test of Chang'e-3 lunar rover on lunar surface

In the process of the lunar rover moving on the moon surface, the surface undulations and the (1/6)g gravity environment will affect the thermal control system of the rover, thus the ground experimental verification of the thermal control system is necessary. Based on the study of the adaptability of the movement mechanism in the vacuum and low temperature environment, a lunar attitude simulator for the thermal test of the rover is developed. The simulation device realizes the pitching and rolling simulations of the rover through two sets of screw lifting mechanism. During verification by two large-scale thermal tests of the lunar rover prototype and the flight model, the simulator has successfully completed the task. This study provides a basis for the design of kinematic tooling in the future thermal test.