Abstract
The 3-P VPHS and 3-P VSP parallel mechanisms (where P, R, and S standing for prismatic, revolute, and spherical joints, respectively, and the subscripts V and H indicating that the direction of the P joint is vertical or horizontal, and the joint with underline symbol means the joint is active) are two typical mechanisms that can be applied to articulated A/B-axis tool heads with parallel structure. This paper focuses on the applications of the forward kinematic for these two kinds of typical tripods. Based on their analytic forward kinematics methods, their workspaces with geometrical constraints are analyzed, their performances are compared with the J-matrix iteration methods in terms of precision, stability and efficiency. The results show that the proposed methods are of high precision, stability and efficiency, and are easy to use, when dealing with the location and error analysis in on line real-time control and the prediction or analysis of their mechanical characteristics.
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Xu, YN., Liu, XJ., Wang, JS. (2012). Analytical Forward Kinematics for Two Kinds of Typical Tripods Part II: Analyzing for Their Workspaces, and Performances of the Forward Kinematics. In: Su, CY., Rakheja, S., Liu, H. (eds) Intelligent Robotics and Applications. ICIRA 2012. Lecture Notes in Computer Science(), vol 7506. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-33509-9_27
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DOI: https://doi.org/10.1007/978-3-642-33509-9_27
Publisher Name: Springer, Berlin, Heidelberg
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