Dynamic Stability Analysis of a Novel Forging Manipulator

The dynamic stability problem of heavy-duty mobile forging manipulators is of great importance for both designing purpose and working task planning. In this paper, a new stability measure named as Force-Moment Ratio Stability is presented. This measure regards the complex multi-rigid body system of the mobile manipulator as a whole and incorporates all static and dynamic factors into consideration. The process of formulation together with the dynamic model of a novel forging manipulator shows this measure is physically meaningful and applicable to dynamic mobile systems subject to inertial, external forces and moments under any kind of motion trajectories. The performance and effectiveness of the measure is demonstrated through a practical implement in the designing of a heavy-duty mobile manipulator used in integrated heavy forging center.

[1]  William Whittaker,et al.  Energy-Based Stability Measures for Reliable Locomotion of Statically Stable Walkers: Theory and Application , 1994, Int. J. Robotics Res..

[2]  Evangelos Papadopoulos,et al.  The Force-Angle Measure of Tipover Stability Margin for Mobile Manipulators , 2000 .

[3]  Steven Dubowsky,et al.  Planning mobile manipulator motions considering vehicle dynamic stability constraints , 1989, Proceedings, 1989 International Conference on Robotics and Automation.

[4]  Jean-Pierre Merlet,et al.  Parallel Robots , 2000 .

[5]  Steven Dubowsky,et al.  Mobile robot kinematic reconfigurability for rough terrain , 2000, SPIE Optics East.

[6]  Ahmad Ghasempoor,et al.  A measure of machine stability for moving base manipulators , 1995, Proceedings of 1995 IEEE International Conference on Robotics and Automation.

[7]  Qiang Huang,et al.  Stability criteria in controlling mobile robotic systems , 1993, Proceedings of 1993 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS '93).

[8]  S. Ali A. Moosavian,et al.  Moment-Height Tip-Over Measure for Stability Analysis of Mobile Robotic Systems , 2006, 2006 IEEE/RSJ International Conference on Intelligent Robots and Systems.

[9]  Charles A. Klein,et al.  Automatic body regulation for maintaining stability of a legged vehicle during rough-terrain locomotion , 1985, IEEE J. Robotics Autom..

[10]  Qiang Huang,et al.  Motion planning for a mobile manipulator considering stability and task constraints , 1998, Proceedings. 1998 IEEE International Conference on Robotics and Automation (Cat. No.98CH36146).

[11]  Robert B. McGhee,et al.  Adaptive Locomotion of a Multilegged Robot over Rough Terrain , 1979, IEEE Transactions on Systems, Man, and Cybernetics.

[12]  S.A.A. Moosavian,et al.  Stability Evaluation of Mobile Robotic Systems using Moment-Height Measure , 2006, 2006 IEEE Conference on Robotics, Automation and Mechatronics.

[13]  Nariman Sepehri,et al.  A Measure of Stability for Mobile Manipulators With Application to Heavy-Duty Hydraulic Machines , 1998 .

[14]  Evangelos Papadopoulos,et al.  A new measure of tipover stability margin for mobile manipulators , 1996, Proceedings of IEEE International Conference on Robotics and Automation.