Dynamic Modeling and Simulation of the Internal- and External-Driven Spherical Robot
Publication: Journal of Aerospace Engineering
Volume 25, Issue 4
Abstract
This paper describes a prototype and analytical studies of a spherical rolling robot, a new design of a nonholonomic robot system. The spherical robot is driven together by an internal linear motor, continuously changing the center of gravity, and external wind thrust. A mathematical model of the robot’s motion was developed using Maggi’s equations without the Lagrange’s multipliers from a view of the nonholonomic constraint. An obstacle avoidance experiment was carried out to analyze the law of motion of the robot driven three ways: external wind driven, internal motor driven, and a combination of both. The results demonstrate that the proposed dynamic model is valid for the spherical robots driven by the different ways for environmental exploration.
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Acknowledgments
This research is sponsored by the National Natural Science Foundation of China through NSFC Grant No. 50875193.
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© 2012 American Society of Civil Engineers.
History
Received: Feb 23, 2011
Accepted: Sep 8, 2011
Published online: Sep 10, 2011
Published in print: Oct 1, 2012
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