Title :
Uniqueness domains and non singular assembly mode changing trajectories
Author :
Chablat, D. ; Moroz, G. ; Wenger, P.
Author_Institution :
IRCCyN, Nantes, France
Abstract :
Parallel robots admit generally several solutions to the direct kinematics problem. The aspects are associated with the maximal singularity free domains without any singular configurations. Inside these regions, some trajectories are possible between two solutions of the direct kinematic problem without meeting any type of singularity: non-singular assembly mode trajectories. An established condition for such trajectories is to have cusp points inside the joint space that must be encircled. This paper presents an approach based on the notion of uniqueness domains to explain this behaviour.
Keywords :
mobile robots; path planning; robot kinematics; direct kinematics problem; maximal singularity free domains; nonsingular assembly mode trajectories; parallel robots; Joints; Kinematics; Parallel robots; Polynomials; Trajectory;
Conference_Titel :
Robotics and Automation (ICRA), 2011 IEEE International Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-61284-386-5
DOI :
10.1109/ICRA.2011.5979929