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Gravity Powered Locomotion and Active Control of Three Mass System

[+] Author Affiliations
Ali Tavakoli, Yildirim Hurmuzlu

Southern Methodist University, Dallas, TX

Paper No. DSCC2010-4194, pp. 141-148; 8 pages
doi:10.1115/DSCC2010-4194
From:
  • ASME 2010 Dynamic Systems and Control Conference
  • ASME 2010 Dynamic Systems and Control Conference, Volume 2
  • Cambridge, Massachusetts, USA, September 12–15, 2010
  • Conference Sponsors: Dynamic Systems and Control Division
  • ISBN: 978-0-7918-4418-2 | eISBN: 978-0-7918-3884-6
  • Copyright © 2010 by ASME

abstract

This paper presents the latest results of our research effort to develop a family of energetically efficient robotic locomotors and introduce new gait patterns for them. We study a chain of mechanisms that span from the very simple to the progressively more complicated. These mechanisms can be as simple as a bouncing ball or as complex as a five link biped. This paper presents the results of our study for a three mass dynamical system. We show that this system can generate a rich set of passive gaits such as hopping, tapping, walking. We developed a nonlinear robust controller for the hybrid dynamics of three mass system that is insensitive to parameter variations of the system. The active control scheme generates the passive gaits on arbitrary ground slope angles.

Copyright © 2010 by ASME

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