Results 21 to 30 of about 50,107 (254)

Compliance error compensation technique for parallel robots composed of non-perfect serial chains [PDF]

open access: yes, 2012
The paper presents the compliance errors compensation technique for over-constrained parallel manipulators under external and internal loadings. This technique is based on the non-linear stiffness modeling which is able to take into account the influence
Chablat, Damien   +3 more
core   +4 more sources

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

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

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

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

A Fuzzy PID Approach for the Vibration Control of the FSPM

open access: yesInternational Journal of Advanced Robotic Systems, 2013
This paper focuses on the vibration control issue of a Flexibly Supported Parallel Manipulator (FSPM), which consists of a flexible support and a rigid parallel manipulator. The distinct characteristic of an FSPM is the dynamic coupling between the rigid
Zhu-Feng Shao   +3 more
doaj   +1 more source

Dynamic Analysis and Trajectory Tracking Control for a Parallel Manipulator with Joint Friction

open access: yesApplied Sciences, 2022
To overcome the bearing capacity deficiencies of traditional serial hip joint simulators, complex trajectory simulation, among others, as well as a parallel manipulator with two pairs of artificial hip joints and two moving platforms are proposed.
Shibiao Chen, Gang Cheng, Yusong Pang
doaj   +1 more source

An algebraic method to check the singularity-free paths for parallel robots [PDF]

open access: yes, 2015
Trajectory planning is a critical step while programming the parallel manipulators in a robotic cell. The main problem arises when there exists a singular configuration between the two poses of the end-effectors while discretizing the path with a ...
Chablat, Damien   +3 more
core   +4 more sources

An Overview of the Development for Cable-Driven Parallel Manipulator

open access: yesAdvances in Mechanical Engineering, 2014
In the last two decades, cable-driven parallel robots have attracted a lot of attention in robot community as a hot topic of robot research. In this paper, the development of the cable-driven parallel manipulator is first introduced in general.
Xiaoqiang Tang
doaj   +1 more source

A Spatial Six-Dof Parallel Manipulator with Redundant Actuators for Gross and Fine Motions

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2010
We presented a spatial parallel manipulator with redundant actuators for gross and fine motions to achieve fine positioning together with gross motion in three dimensional space.
Yukio TAKEDA, Kazuki ICHIKAWA, Wei GUO
doaj   +1 more source

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