Calculating and Simulating Coupling Dynamics of a Spiderfab-type Space Manipulator
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摘要: SpiderFab型空间机械臂是一种典型的漂浮基空间机械臂系统。为了定量的认识机械臂在运动过程中对基体的扰动影响,并以此为依据设计浮动基体的位姿控制系统,建立了系统的运动学、动力学方程。根据系统动量守恒条件显式的表达出基体与机械臂之间的速度耦合关系,并由此说明基体的位姿变化不仅与机械臂实时关节速度有关,还与机械臂的历史关节路径有关。为了更进一步说明系统内存在的动力学耦合问题,针对一个漂浮基三自由度空间机械臂系统,设计了三组仿真试验。三组不同的关节速度曲线作为输入条件,求解基体关节所受的扰动量。仿真结果证明了计算方法的正确性。Abstract: The SpiderFab-type space manipulator is a typical space-based robot system. In order to quantitatively understand the influence on its floating base, which is caused by the motion of a manipulator, and to design its position and orientation control system, kinematics and dynamics equations are built. The coupling dynamics between a floating base and a manipulator is presented based on the conservation law of momentum. It is illustrated that the state change in the floating base is not only dependent on the current manipulator joint velocities but also joint paths. To deeply elaborate the coupled dynamics, three computer simulations of a space-based 3-degree-of-freedom (DOF) manipulator system are conducted. Three joint velocity inputs are given, and the post variation of the floating base is to be computed. The correctness of the method is demonstrated.
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Key words:
- SpiderFab-type space manipulator /
- space-based robot /
- coupling dynamics /
- computer simulation /
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[1] Hoyt R B, Cushing J I, Slostad J T, et al. SpiderFab:An architecture for self-fabricating space systems[C]//AIAA Space 2013 Conference and Exposition. San Diego, CA, USA:AIAA, 2013:5509-5526 [2] SunK, Liu H, Xie Z W, et al. Structure design of an end effector for the Chinese space station experimental module manipulator[C]//Proceedings of the 12th International Symposium on Artificial Intelligence, Robotics and Automation in Space. Montreal, Canada Space Agency, 2014:1-8 [3] 刘宏,蒋再男,刘业超.空间机械臂技术发展综述[J].载人航天,2015,21(5):435-443 Liu H, Jiang Z N, Liu Y H. Review of space manipulator technology[J]. Manned Spaceflight, 2015,21(5):435-443(in Chinese) [4] 于登云,孙京,马兴瑞.空间机械臂技术及发展建议[J].航天器工程,2007,16(4):1-8 Yu D Y, Sun J, Ma X R. Suggestion on development of chinese space manipulator technology[J]. Spacecraft Engineering, 2007,16(4):1-8(in Chinese) [5] 于登云,潘博,孙京.空间机械臂关节动力学建模与分析的研究进展[J].航天器工程,2010,19(2):1-10 Yu D Y, Pan B, Sun J. A literature review on dynamic modeling and analysis of the joints in space manipulator[J]. Spacecraft Engineering, 2010,19(2):1-10(in Chinese) [6] Fukazu Y, Hara N, Kanamiya Y, et al. Reactionless resolved acceleration control with vibration suppression capability for JEMRMS/SFA[C]//IEEE International Conference on Robotics and Biomimetics. Bangkok, Thailand:IEEE, 2009:1359-1364 [7] 谷勇霞,张玉玲,赵杰亮,等.漂浮基空间机械臂动力学问题研究进展[J].中国机械工程,2016,27(15):2118-2129 Gu Y X, Zhang Y L, Zhao J L, et al. Advances in researches of dynamics problems for free-floating manipulator[J]. China Mechanical Engineering, 2016,27(15):2118-2129(in Chinese) [8] 王明,黄攀峰,常海涛,等.基于机械臂耦合力矩评估的组合航天器姿态协调控制[J],机器人,2015,37(1):25-34 Wang M, Huang P F, Chang H T, et al. Coordinated attitude control of combined spacecraft based on estimated coupling torque of manipulator[J]. ROBOT, 2015,37(1):25-34(in Chinese) [9] Xu Y. The measure of dynamic coupling of space robot systems[C]//Proceedings IEEE International Conference on Robotics and Automation. Atlanta, GA, USA:IEEE, 1993,3:615-620 [10] Xu W F, Liang B, Xu Y S. Survey of modeling, planning, and ground verification of space robotic systems[J]. Acta Astronautica, 2011,68(11-12):1629-1649 [11] 王鹏程,沈惠平,孟庆梅,等.一种冗余自由度机械臂逆运动力学解析算法[J].机械科学与技术,2016,35(5):706-710 Wang P C, Shen H P, Meng Q M, et al. An analytical algorithm of inverse kinematics for manipulator with redundancy[J]. Mechanical Science and Technology for Aerospace Engineering, 2016,35(5):706-710(in Chinese) [12] Flores-Abad A, Ma O, Pham K, et al. A review of space robotics technologies for on-orbit servicing[J]. Progress in Aerospace Sciences, 2014,68:1-26 [13] 顾晓勤,刘延柱.空间机械臂动力学奇点与回避[J].宇航学报,1998,19(4):32-36 Gu X Q, Liu Y Z. Avoiding dynamic singularities of space manipulator[J]. Journal of Astronautics, 1998,19(4):32-36(in Chinese) [14] 戈新生,陈立群,吕杰.空间机械臂非完整运动规划的遗传算法研究[J].宇航学报,2005,26(3):262-266,325 Ge X S, Chen L Q, Lv J. Nonholonomic motion planning of a space manipulator system using genetic algorithm[J]. Journal of Astronautics, 2010,26(3):262-266,325(in Chinese) [15] 魏承,赵阳,田浩.空间机器人捕获漂浮目标的抓取控制[J].航空学报,2010,31(3):632-637 Wei C, Zhao Y, Tian H. Grasping control of space robot for capturing floating target[J]. Acta Aeronautica et Astronautica Sinica, 2010,31(3):632-637(in Chinese)
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