Results 11 to 20 of about 5,903 (308)
ANALYSIS AND SYNTHESIS OF PARALLEL MANIPULATORS [PDF]
Paper presents a new way of the structural - topological analysis for the parallel manipulators, with referring to the calculation of mobility (degree of freedom) of complex mechanisms.
Constantin BREZEANU +2 more
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A method to formulate a dimensionally homogeneous Jacobian of parallel manipulators [PDF]
This paper presents a general and systematic approach to formulate the dimensionally homogeneous Jacobian, which is an important issue for the dexterity evaluation and dimensional synthesis of f-degrees-of-freedom (DOF) (f ≤ 6) parallel manipulators ...
Huang, Tian +5 more
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Generalized Jacobian analysis of lower mobility manipulators [PDF]
Mainly drawing on screw theory and linear algebra, this paper presents a general approach for Jacobian analysis of lower mobility manipulators. Given the definitions of twist/wrench spaces and their subspaces of the end-effector, the underlying ...
Huang, Tian +5 more
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Singularity robust balancing of parallel manipulators following inconsistent trajectories [PDF]
When compared to serial manipulators, parallel manipulators have small workspaces mainly due to their closed-loop structure. As opposed to type I singularities (or inverse kinematic singularities) that are generally encountered at the workspace ...
Ozdemir, Mustafa
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Parallel manipulators are characterized as having closed-loop kinematic chains. Compared to serial manipulators, which have open-ended structure, parallel manipulators have many advantages in terms of accuracy, rigidity and ability to manipulate heavy ...
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A new methodology for designing PD controllers [PDF]
It is known that it is impossible to select fixed gains for a PD controller that will critically damp the response to disturbances for all configurations of a given robot system. Because of this the potential for overshoot is always present and cannot be
Atia, K.R., Cartmell, M.P., Cartmell, M.
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Further analysis of the 2-2 wire-driven parallel crane [PDF]
The 2-2 wire-driven parallel crane is the most simple planar parallel crane actuated by wires with two wires connected at two different points on the platform.
Merlet, Jean-Pierre, J.-P. Merlet
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Structural Synthesis of 3-DoF Spatial Fully Parallel Manipulators [PDF]
In this paper, the architectures of three degrees of freedom (3-DoF) spatial, fully parallel manipulators (PMs), whose limbs are structurally identical, are obtained systematically.
Ibarreche Mendia, José ignacio +7 more
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Particularities of fully-parallel manipulators in 6-DOFs robots design: a review of critical aspects
A whole range of industrial applications requires the presence of parallel mechanisms with six degrees of freedom (6-DOF) which have been developed in the last fifteen years, and one of the reasons why they still are a current topic is that present-day ...
Milica Lucian, Andrei Gabriel
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Stiffness Model of a 3-DOF Parallel Manipulator with Two Additional Legs
This paper investigates the stiffness modelling of a 3-DOF parallel manipulator with two additional legs. The stiffness model in six directions of the 3-DOF parallel manipulator with two additional legs is derived by performing condensation of DOFs for ...
Guang Yu, Jun Wu, Liping Wang
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