Research for the clamping force control of pneumatic manipulator based on the mixed sensitivity method

Abstract In this paper, we analyzed uncertainty problems for the system of clamping force control on the condition that its model had been established. To oppose the uncertainty problems caused by many reasons, sensitivity method is mixed based on the control theory of H∞ and robust controller. Then, its control effects were studied by MATLAB. The simulation results showed the effectiveness of this method. They manifested that fault-tolerant, robustness and dynamic performance of the system are improved. It will be able to promote the application of pneumatic manipulator in the field of ultra-precision control.

[1]  V. Kučera,et al.  Mixed sensitivity H/sub /spl infin// control for LTI systems , 2004, 2004 43rd IEEE Conference on Decision and Control (CDC) (IEEE Cat. No.04CH37601).

[2]  R. Fales,et al.  Robust control design for a wheel loader using mixed sensitivity h-infinity and feedback linearization based methods , 2005, Proceedings of the 2005, American Control Conference, 2005..

[3]  Smc Pneumatic Establishment and Research on Mathematic Model of Proportional Valve Controlled Pneumatic Position Servo-System , 2003 .

[4]  Homayoon Kazerooni,et al.  Dynamic behavior of pneumatic systems for lower extremity extenders , 2002, Proceedings 2002 IEEE International Conference on Robotics and Automation (Cat. No.02CH37292).