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Geometrical kinematic solution of serial spatial manipulators using screw theory
- Geometrical kinematic solution of serial spatial manipulators using screw theory
- An, Hee Sung; Lee, Jie Hyeung; Lee, Chan; Seo, TaeWon; Lee, Jeh Won
- DGIST Authors
- Lee, Chan
- Issue Date
- Mechanism and Machine Theory, 116, 404-418
- Article Type
- Exact Solution; Geometrical Solution; Geometry; Industrial Manipulators; Instantaneous Kinematics; Kinematic Solutions; Kinematics; Machine Design; Manipulators; Moment Relation; Motion Analysis; Motion Planning; Robot Applications; Robot Kinematics; Robot Manipulator; Robot Programming; Screw Theory; Screws
- Kinematics of a robot manipulator is an essential component of robotic analysis that includes control, motion planning, and design. Previous studies have proposed several different methods to provide an exact solution for kinematics. However, most of the methods are mathematically complicated and not sufficiently intuitive to express the geometrical meaning of kinematics. In this study, the exact solution to kinematics is derived based on the screw theory. The most important contribution of this study is providing a geometrical intuition of kinematics. Two arbitrary screws in space are equivalent to the sum of the mutual moment relation. In the study, general case solutions and special cases of parallel and perpendicular configuration were examined, and their geometrical meaning was discussed. The proposed method was used to analyze two industrial manipulators, and practical effectiveness was verified. The method could be applied to various manipulator configurations and the solution provides the geometrical intuition effectively. Additionally, the geometrical meaning of the solution can be used in design and motion planning. © 2017 Elsevier Ltd
- Elsevier Ltd
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