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Flexible dynamic modeling and control for the Remote Manipulator System

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Flexible dynamic modeling and control for the Remote Manipulator System

Xie, Haipeng (1996) Flexible dynamic modeling and control for the Remote Manipulator System. Masters thesis, Concordia University.

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Abstract

This thesis focuses on modeling and controller design for the Space Shuttle Remote Manipulator System (RMS). A dynamic model of the RMS is derived using Book's recursive Lagrangian method. This model has six degree-of-freedom rigid dynamics, joint flexibility dynamics, link transverse elastic dynamics and torsional elastic dynamics. A computationally efficient control approach for addressing joint and boom flexibility of the RMS is investigated. The control strategy consists essentially of four parts. The first part involves pre-shaping the joint trajectories in order to reduce the excitation of link flexibility. The second part is a rigid model based inverse dynamics control which is used to obtain the desired joint torque. The third part is a flexible-joint control loop which is based on a perturbation technique. The last part is a pulse active damping (PAD) control loop which is applied to damp out the system residual vibrations in a fast manner. The integrated control strategy leads to fast end-effector trajectory tracking with less end-effector vibration and fast damping of residual vibrations.

Divisions:Concordia University > Faculty of Engineering and Computer Science > Electrical and Computer Engineering
Item Type:Thesis (Masters)
Authors:Xie, Haipeng
Pagination:xiv, 131 leaves : ill. ; 29 cm.
Institution:Concordia University
Degree Name:Theses (M.A.Sc.)
Program:Electrical and Computer Engineering
Date:1996
Thesis Supervisor(s):Patel, Rajni
ID Code:182
Deposited By:Concordia University Libraries
Deposited On:27 Aug 2009 13:10
Last Modified:08 Dec 2010 10:13
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