Results 21 to 30 of about 2,273,334 (347)

A novel approach for 2-degrees of freedom redundant parallel manipulator dynamics

open access: yesAdvances in Mechanical Engineering, 2017
A novel Udwadia–Kalaba approach for redundant parallel manipulator dynamics is presented in this article. This methodology is explicit and simple which is suitable for systems with holonomic or non-holonomic constraints.
Rongrong Yu   +3 more
doaj   +1 more source

Rotation symmetry axes and the quality index in a 3D octahedral parallel robot manipulator system [PDF]

open access: yes, 2002
The geometry of a 3D octahedral parallel robot manipulator system is specified in terms of two rigid octahedral structures (the fixed and moving platforms) and six actuation legs.
B Mayer   +10 more
core   +1 more source

Kinematic Analysis and Trajectory Planning of the Orthoglide 5-axis [PDF]

open access: yes, 2015
The subject of this paper is about the kinematic analysis and the trajectory planning of the Orthoglide 5-axis. The Orthoglide 5-axis a five degrees of freedom parallel kinematic machine developed at IRCCyN and is made up of a hybrid architecture, namely,
Caro, S   +3 more
core   +3 more sources

Stiffness Model of a 3-DOF Parallel Manipulator with Two Additional Legs

open access: yesInternational Journal of Advanced Robotic Systems, 2014
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
doaj   +1 more source

Non-Singular Assembly Mode Changing Trajectories of a 6-DOF Parallel Robot [PDF]

open access: yes, 2012
International audienceThis paper deals with the non-singular assembly mode changing of a six degrees of freedom parallel manipulator. The manipulator is composed of three identical limbs and one moving platform.
Caro, Stéphane   +2 more
core   +4 more sources

Performance analysis for a 2 (3HSS+S) parallel manipulator with double moving platforms

open access: yesInternational Journal of Advanced Robotic Systems, 2016
The working efficiency of a parallel manipulator with double moving platforms is better than a parallel manipulator with a single moving platform. In this study, a 2 (3HSS+S) parallel manipulator is presented, and the topology model of the parallel ...
Gang Cheng, Zunzhong Zhao, Xianlei Shan
doaj   +1 more source

Dynamic Coupling Analysis of a Spatial 6-DOF Electro-Hydraulic Parallel Manipulator Using a Modal Decoupling Method

open access: yesInternational Journal of Advanced Robotic Systems, 2013
The workspace of a spatial 6-DOF electro-hydraulic parallel manipulator is strongly coupled, due to its multi-closed-loop kinematic structure and the coupling complicates motion planning and control of the parallel manipulator.
Chifu Yang, Junwei Han
doaj   +1 more source

Research on Longitudinal Vibration Characteristic of the Six-Cable-Driven Parallel Manipulator in FAST

open access: yesAdvances in Mechanical Engineering, 2013
The first adjustable feed support system in FAST is a six-cable-driven parallel manipulator. Due to flexibility of the cables, the cable-driven parallel manipulator bears a concern of possible vibration caused by wind disturbance or internal force from ...
Zhihua Liu   +4 more
doaj   +1 more source

On the determination of cusp points of 3-R\underline{P}R parallel manipulators [PDF]

open access: yes, 2010
This paper investigates the cuspidal configurations of 3-RPR parallel manipulators that may appear on their singular surfaces in the joint space. Cusp points play an important role in the kinematic behavior of parallel manipulators since they make ...
Chablat, Damien   +3 more
core   +5 more sources

Real-time UVMS torque distribution algorithm based on weighting matrix.

open access: yesPLoS ONE, 2021
This study presents a real-time algorithm for even distributing the torque burden on the parallel manipulator with an autonomous underwater vehicle (AUV) through the cooperation of the AUV and manipulator.
Yecheol Moon   +4 more
doaj   +1 more source

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