A Family of Kinematically Redundant Planar Parallel Manipulators
نویسندگان
چکیده
منابع مشابه
A Family of Kinematically Redundant Planar Parallel Manipulators
Parallel manipulators feature relatively high payload and accuracy capabilities compared to their serial counterparts. However, they suffer from small workspace and low maneuverability. Kinematic redundancy for parallel manipulators can improve both of these characteristics. This paper presents a family of new kinematically redundant planar parallel manipulators with six actuated-joint degrees ...
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A methodology to evaluate force capabilities of planar parallel manipulators is presented in this paper. Different from previous approach, kinematic redundancies are handled and proper used to improve force capabilities. Add to actuators wrench parameters normally present in a force optimization problem, kinematic redundancy introduces geometric parameters to be optimized, producing non-linear ...
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The high cost involved in the retrieval and repair of robotic manipulators used for remediating nuclear waste, processing hazardous chemicals, or for exploring space or the deep sea, places a premium on the reliability of the system as a whole. For such applications, kinematically redundant manipulators are inherently more reliable since the additional degrees of freedom (DOF) may compensate fo...
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In this work, the 3-RPRR, a new kinematically redundant planar parallel manipulator with six degrees of freedom, is presented. First the manipulator is introduced and its inverse displacement problem discussed. Then, all types of the singularities of the 3-RPRR manipulator are analysed and demonstrated. Thereafter, the reachable and dexterous workspaces are obtained and compared with those of t...
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When a manipulator suuers a joint failure, its performance can be signiicantly affected. If the failed joint is locked, the resulting manipulator Jacobian is given by the original Jacobian, except that the column associated with the failed joint is removed. The rank of the resulting Jacobian then determines if the manipulator still has the ability to perform arbitrary end-eeector motions. Unfor...
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ژورنال
عنوان ژورنال: Journal of Mechanical Design
سال: 2008
ISSN: 1050-0472,1528-9001
DOI: 10.1115/1.2900723