<正>Structural synthesis for 4-DOF parallel manipulators using screw theory is systematically studied. Motion properties and constraint conditions of 4-DOF parallel manipulators according to the relationship between screw and reciprocal screw are analyzed. Mathematical expressions for constraint screws and twist screws of moving platform are constructed, and all possible limbs, which provide one or more force constraints, are enumerated. Finally, a parallel manipulator with 3-rotation-DOF and 1-translation-DOF is used as an example to describe the synthesis procedure for symmetrical and non-symmetrical 4-DOF parallel manipulators.
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机译:Research Conducted at Shanghai Jiao Tong University Has Provided New Information about Robotics (Type Synthesis of Reconfiguration Parallel Mechanisms Transforming Between Trusses and Mechanisms Based On Friction Self-locking Composite Joints)
机译:Findings on Robotics Reported by Investigators at Chengdu University of Technology (A Universal Modelling Approach and a Response Index To the Vibration Analysis for Space Parallel Robots By Means of Screw Theory)