Publication

Singularity-invariant leg rearrangements in doubly-planar Stewart-Gough platforms

Conference Article

Conference

Robotics: Science and Systems Conference (RSS)

Edition

VI

Pages

1-8

Doc link

http://www.roboticsproceedings.org/rss06/p14.html

File

Download the digital copy of the doc pdf document

Abstract

In general, rearranging the legs of a Stewart-Gough platform, i.e., changing the locations of its leg attachments, modifies the platform singularity locus in a rather unexpected way. Nevertheless, some leg rearrangements have been recently found to leave singularities invariant but, unfortunately, these rearrangements are only valid for Stewart-Gough platforms containing rigid components. In this work, the authors go a step further presenting singularity-invariant leg rearrangements that can be applied to any Stewart-Gough platform whose base and platform attachments are coplanar. The practical consequences of the presented theoretical results are illustrated with several examples including well-known architectures.

Categories

robot kinematics.

Scientific reference

J. Borràs, F. Thomas and C. Torras. Singularity-invariant leg rearrangements in doubly-planar Stewart-Gough platforms, VI Robotics: Science and Systems Conference, 2010, Zaragoza, Spain, pp. 1-8.