空间天线板地面重力补偿系统仿真研究

Research on Gravity Compensation System Simulation of the Space Antenna Plate

针对某型号空间天线板的结构特点,制定吊挂方式重力补偿方案,实现空间天线板地面展开试验的重力补偿。建立空间天线板仿真模型,应用ADAMS软件对重力补偿方案进行动力学仿真分析,分析铰链配重、滑轮组和滑车摩擦力以及天线板组件厚度方向上的质心偏差对展开性能的影响。研究结果表明,利用该配平方案对各组件进行配平,尽可能减小试验系统的摩擦力,保证天线板组件厚度方向质心偏差≤4mm,可确保电动机具备足够的输出力矩裕度,实现空间天线板的顺利展开与锁定。

For the stucture characteristics of a certain type of space antenna board,the gravity compensation plan for hanging pattern is made to realize the gravity compensation of space antenna board for ground expansion test.The space antenna plate simulation model is established,using the ADAMS dynamics simulation analysis on gravity compensation system.The influence of hinge counterweight,pulley block and block friction and the position deviation of the center on the performance of the antenna plate component thickness is analyzed.Research results show that,according to balancing scheme in this paper the components are balanced,to minimize the friction of the test system and ensure that the position deviation of the center of the antenna plate component thickness is not more than 4 mm.Thus,it can ensure the motor with sufficient output torque margin and make the space antenna board expanded and locked smoothly.