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An Iterative Method for the Displacement Analysis of Spatial Mechanisms
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1964
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Robot KinematicsEngineeringMechanical EngineeringComputer-aided DesignStructural OptimizationComputational MechanicsGeometric Constraint SolvingSystems EngineeringSymbolic NotationMatrix MethodKinematicsDisplacement AnalysisComputational GeometryGeometric ModelingSpatial ScienceDeformation ReconstructionSimple-closed LinkagesQuantitative Spatial ModelGeometric AlgorithmNatural SciencesCivil EngineeringMechanical SystemsAlgebraic MethodStructural MechanicsSpatial Structure
An algebraic method for the displacement analysis of linkages has been the subject of earlier publications [1, 2]. This method, based on the use of a symbolic notation, allows the application of matrix algebra to the study of displacements in linkages, and permits formulation of all the kinematic relations of a linkage in terms of matrix equations. Based on this earlier work, the present paper develops an iterative method for the solution of the matrix equations required in displacement analysis. A complete solution is given for simple-closed linkages consisting of revolute and prismatic pairs (and their combinations). A brief indication of how higher pairs and multiple-closed chains may be handled is also given. Particularly useful in spatial problems, since it does not depend on visualization, this approach is developed in a manner intended for digital-computer operation.