Departmental Papers (ESE)



We present the design, modeling and preliminary control of RHex, an autonomous dynamically stable hexapod possessing merely six actuated degrees of freedom (at the hip attachment of each leg). Our design emphasizes mechanical simplicity as well as power and computational autonomy, critical components for legged robotics applications. A compliant hexapod model, used to build a simulation environment closely informed the design and construction of the physical machine and promises to inform, similarly, our future analysis as well. Simulations and experiments show that RHex can achieve dynamically stable walking, running and turning with very simple clock driven open-loop control strategies.

Document Type

Conference Paper

Subject Area

GRASP, Kodlab

Date of this Version



Copyright 2000 IEEE. Reprinted from Proceedings of the IEEE International Conference on Robotics and Automation, Volume 3, ICRA 2000, pages 2589-2596.

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NOTE: At the time of publication, author Daniel Koditschek was affiliated with the University of Michigan. Currently, he is a faculty member in the Department of Electrical and Systems Engineering at the University of Pennsylvania.



Date Posted: 02 June 2008

This document has been peer reviewed.