Abstract：This paper presents a hybrid-driven approach with cable-driven and convention-driven designs for a 7-DOF manipulator.This approach combines the advantages of both cable-driven parallel mechanism and modular serial structure,so that the workspace of the hybrid-driven manipulator is larger than that of the conventional cable-driven design.The hybrid mechanism design of the manipulator is presented firstly,which has a modular serial structure in shoulder joint and a cable-driven structure in elbow and wrist joint respectively.Then the forward kinematics of the manipulator is solved with geometry analysis.After relationship between the cable length and the joint angle is analyzed,the velocity analysis and incremental displacement analysis are respectively employed to calculate the inverse kinematic solution.Finally,a straight-line motion trajectory tracking for the hybrid cable-driven manipulator is realized with VC++ software,and the effectiveness of proposed approach is verified with simulation.
[1] 赵冬斌,易建强,张文增,等.拟人机器人TH-1手臂运动学[J].机器人,2002,24(6):502-507.
[2] 钱锡康.BUAA-RR七自由度机器人机械结构设计[J].北京航空航天大学学报,1998,24(3):354-357.
[3] 李鲁亚.冗余自由度机器人控制研究[D].北京:北京航空航天大学,1994.
[4] Yang G L,Lin W,Kurbanhusen M S.Kinematic design of a 7-DOF cable-driven humanoid arm:A solution-in-nature approach[A].Proceedings of the IEEE/ASME International Conference on Advanced Intelligent Mechatronics[C].Piscataway,NJ,USA:IEEE,2005.444-449.
[5] Pham C B,Yeo S H,Yang G L.Workspace analysis and optimal design of cable-driven planar parallel manipulator[A].Proceedings of the 2004 IEEE International Conference on Robotics,Automation and Mechatronics[C].Piscataway,NJ,USA:IEEE,2004.219-224.
[6] Takemura F,Enomoto M,Denou K,et al.Proposition of a human body searching strategy using a cable-driven robot at major disaster[A].Proceedings of the IEEE/RSJ International Conference on Intelligent Robots and Systems[C].Piscataway,NJ,USA:IEEE,2004.1456-1461.
[7] Alp A B,Agrawal S K.Cable suspended robots:Design,planning and control[A].Proceedings of the IEEE International Conference on Robotics and Automation[C].Piscataway,NJ,USA:IEEE,2002.4275-4280.
[8] Zollo L,Siciliano B,Laschi C,et al.An impedance-compliance control for a cable-actuated robot[A].Proceedings of the IEEE/RSJ International Conference on Intelligent Robots and Systems[C].Piscataway,NJ,USA:IEEE,2002.2268-2273.
[9] Yamamoto M,Yanai N,Mohri A.Inverse dynamic and control of crane-type manipulator[A].Proceedings of the IEEE/RSJ International Conference on Robots and Systems[C].Piscataway,NJ,USA:IEEE,1999.1228-1233.
[10] Kurtz R,Hayward V.Multiple-goal kinematic optimization of a parallel spherical mechanism with actuator redundancy[J].IEEE Transactions on Robotics and Automation,1992,8 (5):644 -651.
[11] Chen I M,Yang G L.Inverse kinematics for modular reconfigurable robots[A].Proceedings of the IEEE International Conference on Robotics and Automation[C].Piscataway,NJ,USA:IEEE,1998.1647-1652.
[12] Murray R M,李泽湘,Sastry S S.徐卫良,钱瑞明.机器人操作的数学导论[M].北京:机械工业出版社,1995.
[13] Chen W H,Yang G L,Ho H L,et al.Interactive-motion control of modular reconfigurable manipulators[A].Proceedings of the IEEE/RSJ International Conference on Intelligent Robots and Systems[C].Piscataway,NJ,USA:IEEE,2003.1620-1625.
[14] Chen W H,Chen I M,Lim W K,et al.Cartesian coordinate control for redundant modular robots[A].Proceedings of the IEEE International Conference on Systems,Man and Cybernetics[C].Piscataway,NJ,USA:IEEE,2000.3253 -3258.
