航天器舱门零重力环境模拟卸载系统设计分析

卸载系统是舱门展开试验装备的重要组成部分,重点对展开试验卸载系统进行设计与分析研究。鉴于空间舱门运行轨迹复杂,采用二维滑轨吊挂方法适应曲线展开轨迹。针对质量大、易导致支撑部件变形以及卸载困难,采用多点长距离支撑均匀分散受力。设计柔性自适应弹性吊挂,对运行过程波动进行有效缓冲,避免刚性碰撞。采用高精度数显可读式拉力传感监测系统,实现展开过程拉力在线检测。针对高卸载效率要求,采用二维可调式转接组件适应多状态舱门调平,最后实现卸载率96.31%以上。结果表明,舱门零重力环境模拟卸载系统设计方法可行,分析过程合理,满足工程应用需求。

Research on Multi-Mission Intelligent Vehicle On-Orbit Service Technology

The unloading system is an important part of deployment test equipment for the hatch-door. The emphasis is on the design and analysis of the unloading system for the launch test. Based on the complex trajectory of the space hatch-door, the two-dimensional sliding-rail suspension method is adapted to meet the needs of curve deployment. In view of the large weight, easy causing deformation of supporting parts and the difficulty of unloading, multi-point long-distance support is adapted to disperse the force uniformly. The flexible and elastic self-adaption suspension design is adapted to effectively buffer the fluctuation of operation process,and avoid rigid collision. In order to ensure the digital real-time monitoring of the hatch deployment process, a high-precision digital readable tension system of sensor monitoring is used to realize on-line tension detection during the deployment process. In order to meet the requirement of high unloading efficiency, the two-dimensional adjustable transfer module is used to adjust the multi-state hatch-door. Finally, the unloading rate is more than 96.31%. The results show that the design method of zero-gravity environment simulation unloading system for hatch-door is feasible and the analysis process is reasonable, which meets the engineering application requirements.