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Model-based Reference Trajectory Generation for Tip-based Learning Controller  

Rhim Sungsoo (School of Mechanical and Industrial Systems Engineering, Kyung Hee University)
Lee Soon-Geul (School of Mechanical and Industrial Systems Engineering, Kyung Hee University)
Lim Tae Gyoon (Research Institute of Industrial Science and Technology)
Publication Information
Journal of Mechanical Science and Technology / v.19, no.spc1, 2005 , pp. 357-363 More about this Journal
Abstract
The non-minimum phase characteristic of a flexible manipulator makes tracking control of its tip difficult. The level of the tip tracking performance of a flexible manipulator is significantly affected by the characteristics of the tip reference trajectory as well as the characteristics of the flexible manipulator system. This paper addresses the question of how to best specify a reference trajectory for the tip of a flexible manipulator to follow in order to achieve the objectives of reducing : tip tracking error, residual tip vibration, and the required actuation effort at the manipulator joint. A novel method of tip-based learning controller for the flexible manipulator system is proposed in the paper, where a model of the flexible manipulator system with a command shaping filter is used to generate a smooth and realizable tip reference trajectory for a tip-based learning controller.
Keywords
Command Shaping; Tip Control; Flexible Link; Learning Control;
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