Research - RHex

 

    RHex, Robot hexapod, is a 5-year multi-million-dollar multi-school interdisciplinary legged robotic projects funded by the US Department of Defense Advanced Research Projects Agency (DARPA). Researchers includes Prof. D. E. Koditschek at University of Michigan (relocated to University of Pennsylvania), Prof. R. J. Full at UC-Berkeley, Prof. M. Buehler at McGill University, Canada ( relocated to Boston Dynamics), and Prof. A. Rizzi at Carnegie Mellon University.

    RHex has only one active motor-driven rotational degree of freedom (DOF) per leg and 1-or-2 DOF passive DOF from leg compliance depended on the leg type.  Low active DOF improves robustness and reliability in the sense of both design and control, and the compliant legs provide the well-defined interface to excite dynamic behaviors of robot locomotion (i.e. with potential and kinetic energy exchange during locomotion).

    For more information on RHex, you can visit RHex website (http://www.rhex.net).

 

Some RHex movies:

  Fractal - roach (mpg, 3.7MB)

 

Fractal - RHex (mpg, 1.2MB)

 

 

  Running (mpg, 4.6MB)

 

Jogging (mpg, 6.5MB)

 

 

  Tumble (mpg, 3.0MB)

 

Uneven Terrain (mpg, 4.7MB)

 

 

  Stair Climbing (mpg, 2.1MB)

 

Incline (mpg, 4.6MB)

 

 

  Flipping (mpg, 6.5MB)

 

Aqua RHex (mpg, 4.4MB)

 

 

  Biped Mode (mpg, 2.8MB)

 

RHex vs. Dog (mov, 0.8MB)