Optimizing the location of assembly tasks in a manipulator's workspace

Brad Nelson, Max Donath

Research output: Contribution to journalArticlepeer-review

25 Scopus citations

Abstract

Off‐line programming of robotic workcells has become an invaluable tool for the workcell designer, however, current robot programming systems lack the capability to automatically determine the locations for performing assembly operations within the manipulator's workspace. A gradient function of manipulability in Cartesian space was developed based on an explicit determination of the manipulability function and the gradient of the manipulability function in joint space. A modified method of the steepest descent optimization procedure was then used as the basis for an algorithm that automatically locates an assembly task away from singularities within a manipulator's workspace. This algorithm can readily be extended to any nonredundant manipulator.

Original languageEnglish (US)
Pages (from-to)791-811
Number of pages21
JournalJournal of Robotic Systems
Volume7
Issue number6
DOIs
StatePublished - Dec 1990

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