Abstract：A flexible robot manipulator is designed mainly based on the pneumatic muscles.Two different sizes of pneumatic muscles are used in wrist joint and knuckle,and two different transmission modes are adopted.A position control strategy of wrist pitch joint is given.The static model of finger is built,with which the relationship between the input pressure of the pneumatic muscles and the finger grasping force is analyzed.Experimental results show that the robot manipulator can grasp objects safely and compliantly.
[1] Hunter I W, Serge L. Comparison of muscle with artificial actuators[A]. Proceedings of the 5th IEEE Solid-state Sensor and Actuator Workshop[C]. Piscataway, USA:IEEE, 1992. 178-185. [2] Inoue K. Rubbertuators and application for robots[A]. Proceedings of the 4th International Symposium on Robotics Research[C]. USA:1988. 57-63. [3] Hashimoto K, Imaeda M, Ishii A. Trajectory control of a one-link arm using pneumatic rubbertuator(application of preview learning control)[A]. Proceedings of the 35th SCIE Annual Conference[C]. Tokyo,Japan:SICE, 1996. 1163-1166. [4] Tondu B, Lopez p. Modeling and control of McKibben pneumatic artificial robot actuators[J]. IE EE Control System Magazine, 2000, 20(2):15-38. [5] Thongchai S, Goldfarb M, Sarkar N, et al. A frequency modeling method of rubbertuators for control application in an IMA framework[A]. Proceedings of the American Con1rol Conference[C]. Arlington, VA, USA:IEEE, 2001. 1710-1714. [6] Toshiro N, Toshihiro T. Application of rubber artificial muscle manipulator as a rehabilitation robot[J]. IEEE/ASME Transactions on Mechatronics, 1997, 2(4):259-267. [7] Tsagarakis D G, Caldwell, G A, Medrano C. A 7 DOF pneumatic muscle actuator(PMA) powered exoskeleton[A]. Proceeding of the 1999 IEEE International Workshop on Robot and Human Interaction[C]. New York, USA:IEEE, 1999. 327-333. [8] 丁红,舒迪前.无需辨识模型的PSD自适应控制器及其应用[J]. 冶金自动化,1994,18(2):35-39.
