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New geometric approaches to the analysis and design of Stewart-Gough platforms
Borràs Sol, Júlia; Thomas, Federico; Torras, Carme
Universitat Politècnica de Catalunya. Institut de Robòtica i Informàtica Industrial; Universitat Politècnica de Catalunya. Departament d'Enginyeria de Sistemes, Automàtica i Informàtica Industrial; Universitat Politècnica de Catalunya. ROBiri - Grup de Robòtica de l'IRI
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. Identification of such rearrangements is useful not only for the kinematic analysis of the platforms, but also as a tool to redesign manipulators avoiding the implementation of multiple spherical joints, which are difficult to construct and have a small motion range. In this study, a summary of these singularity-invariant leg rearrangements is presented, and their practical implications are illustrated with several examples including well-known architectures.
Peer Reviewed
Àrees temàtiques de la UPC::Informàtica::Robòtica
Manipulator design
parallel robots
robot kinematics
singularity analysis
Stewart-Gough platform
SPHERICAL PARALLEL MECHANISMS
OCTAHEDRAL MANIPULATOR
SINGULARITY ANALYSIS
ROBOTICS
MACHINE
SYSTEM
Classificació INSPEC::Automation::Robots::Robot kinematics
Attribution-NonCommercial-NoDerivs 3.0 Spain
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
info:eu-repo/semantics/submittedVersion
Artículo
Institute of Electrical and Electronics Engineers (IEEE)
         

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