Title
Novel mechanical design of biped robot SHERPA using 2 DOF cable differential modular joints
Abstract
This paper discusses the mechanical kinematics solutions and design aspects of the biped robot SHERPA, a bipedal platform able to walk and carry load. Starting from the analysis of the human lower limbs, we figure out that 6 DOF per leg are fundamental for a correct walking motion and can be adopted in a mechanical design of a humanoid robot. A close investigation of the joints leads us to a novel modular mechanical design, with a parallel architecture mechanism characterized by and high degree of interchangeable components. The robot is using twelve high performance hollow shaft electrical actuators acting in pairs in a parallel manner, a remote compact and transparent actuation with zero-backlash cable transmissions, 2 DOF differential joints between each segment of the limb and a light-weight carbon fiber skeleton modeling and mimic the anatomy of the human legs. The modular 2 DOF cable differential joint has been implemented at the hip, knee and ankle level. Using our approach, actuation is more transparent (back-drivable, with low inertia) and will allow SHERPA to interact with the environment more smoothly which leads to better walking ability.
Year
DOI
Venue
2009
10.1109/IROS.2009.5354425
St. Louis, MO
Keywords
Field
DocType
novel mechanical design,design aspect,correct walking motion,dof cable differential joint,modular joint,novel modular mechanical design,dof differential joint,biped robot sherpa,better walking ability,mechanical kinematics solution,humanoid robot,mechanical design,torque,actuators,robot kinematics,motion control,mechanism design,carbon fiber,humanoid robots
Motion control,Torque,Kinematics,Simulation,Computer science,Control theory,Robot kinematics,Control engineering,Modular design,Robot,Humanoid robot,Actuator
Conference
ISBN
Citations 
PageRank 
978-1-4244-3804-4
4
0.53
References 
Authors
8
3
Name
Order
Citations
PageRank
Ionut Mihai Constantin Olaru140.53
Sébastien Krut214716.57
F. Pierrot347992.02