Moveability and Collision Analysis for Fully-Parallel Manipulators

Details Moveability and Collision Analysis for Fully-Parallel Manipulators Moveability and Collision Analysis for Fully-Parallel Manipulators

2007-07-13

arxiv.org/abs/0707.1957v1

12th CISM-IFTOMM Symposium (07/1998) 1-8

Computer Science

Robotics

Scientific paper

The aim of this paper is to characterize the moveability of fully-parallel manipulators in the presence of obstacles. Fully parallel manipulators are used in applications where accuracy, stiffness or high speeds and accelerations are required \cite{Merlet:97}. However, one of its main drawbacks is a relatively small workspace compared to the one of serial manipulators. This is due mainly to the existence of potential internal collisions, and the existence of singularities. In this paper, the notion of free aspect is defined which permits to exhibit domains of the workspace and the joint space free of singularity and collision. The main application of this study is the moveability analysis in the workspace of the manipulator as well as path-planning, control and design.

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