Development of space end-effector with capabilities of misalignment tolerance and soft capture based on tendon-sheath transmission system  

作　　者：丰飞 刘伊威 刘宏 蔡鹤皋 

机构地区：[1]State Key Laboratory of Robotics and System,Harbin Institute of Technology

出　　处：《Journal of Central South University》2013年第11期3015-3030,共16页中南大学学报（英文版）

基　　金：Project(2006AA04Z228) supported by National Hi-tech Research and Development Program of China

摘　　要：The essential requirements of the end-effector of large space manipulator are capabilities of misalignment tolerance and soft capture.According to these requirements,an end-effector prototype combining the tendon-sheath transmission system with steel cable snaring mechanism was manufactured.An analysis method based on the coordinate transformation and the projection of key points of the mechanical interface was proposed,and it was a guideline of the end-effector design.Furthermore,the tendon-sheath transmission system was employed in the capture subassembly to reduce the inertia of the capture mechanism and enlarge the capture space.The capabilities of misalignment tolerance and soft capture were validated through the dynamic simulation in ADAMS software.The results of the capture simulation and experiment show that the end-effector has outstanding capabilities of misalignment tolerance and soft capture.The translation misalignments in radial directions are±100 mm,and angular misalignments about pitch and yaw are±15°.The essential requirements of the end-effector of large space manipulator are capabilities of misalignment tolerance and soft capture. According to these requirements, an end-effector prototype combining the tendon-sheath transmission system with steel cable snaring mechanism was manufactured. An analysis method based on the coordinate transformation and the projection of key points of the mechanical interface was proposed, and it was a guideline of the end-effector design. Furthermore, the tendon-sheath transmission system was employed in the capture subassembly to reduce the inertia of the capture mechanism and enlarge the capture space. The capabilities of misalignment tolerance and soft capture were validated through the dynamic simulation in ADAMS software. The results of the capture simulation and experiment show that the end-effector has outstanding capabilities of misalignment tolerance and soft capture. The translation misalignments in radial directions are ±100 mm, and angular misalignments about pitch and yaw are ±15°.

关 键 词：space station on-orbit-servicing large space manipulator END-EFFECTOR soft capture large misalignment tolerance 

分 类 号：TP242[自动化与计算机技术—检测技术与自动化装置] TP241[自动化与计算机技术—控制科学与工程]