Kinematically Identical Manipulators for an Asymmetric 3-PRS Parallel Manipulator and Their Constraint Performance Comparison Study
نویسندگان
چکیده
منابع مشابه
Kinematic analysis of a 3-PRS parallel manipulator
Although the current 3-PRS parallel manipulators have different methods on the arrangement of actuators, they may be considered as the same kind of mechanism since they can be treated with the same kinematic algorithm. A 3-PRS parallel manipulator with adjustable layout angle of actuators has been proposed in this paper. The key issues of how the kinematic characteristics in terms of workspace ...
متن کاملForward Kinematics Analysis of a 3-PRS Parallel Manipulator
In this article the homotopy continuation method (HCM) to solve the forward kinematic problem of the 3-PRS parallel manipulator is used. Since there are many difficulties in solving the system of nonlinear equations in kinematics of manipulators, the numerical solutions like Newton-Raphson are inevitably used. When dealing with any numerical solution, there are two troublesome problems. One is ...
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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...
متن کاملKinematically Redundant Manipulator
being solved to determine the corresponding required joint values, 8(t;). A kinematically redundant manipulator can, in general, satisfy an end-effector positioning constraint, x(t;), with an infinite family of joint values satisfying (2). The underlying premise for advocating the use of redundant manipulators for critical applications is that if a joint should fail, then the redundancy of the ...
متن کاملA 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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ژورنال
عنوان ژورنال: Journal of Mechanical Engineering
سال: 2020
ISSN: 0577-6686
DOI: 10.3901/jme.2020.03.031