Results 21 to 30 of about 172,995 (305)

Null-space impedance control of 7-degree-of-freedom redundant manipulators based on the arm angles

open access: yesInternational Journal of Advanced Robotic Systems, 2020
An impedance control method in null-space for 7-degree-of-freedom redundant manipulators is presented in this article. The null-space impedance motion of the redundant manipulator was described in the angle domain and a null-space impedance equation was ...
Genliang Xiong, Yang Zhou, Jiankang Yao
doaj   +1 more source

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

Workspace and Manipulability Analysis of a 4-R?RR Redundant Planar Parallel Manipulator

open access: yesRMUTL Engineering Journal, 2022
Planar parallel manipulator has advantages to carry out high speed and accuracy tasks, but singular configurations can occur within a workspace. These singular configurations can be eliminated by adding redundant actuation.
Amnad Tongtib, Chawalit Khanakornsuksan
doaj   +1 more source

Dynamic obstacle avoidance and trajectory planning of five-axis redundant industrial manipulator [PDF]

open access: yes, 2023
Aiming at the problem that five axis redundant industrial manipulator dynamic obstacle avoidance and trajectory planning algorithm does not consider the minimum difference of each joint of the manipulator, which leads to low success rate of obstacle ...
Ma, Jian, Jian Ma
core   +1 more source

Collision-free inverse kinematics of the redundant seven-link manipulator used in a cucumber picking robot [PDF]

open access: yes, 2010
The paper presents results of research on an inverse kinematics algorithm that has been used in a functional model of a cucumber-harvesting robot consisting of a redundant P6R manipulator.
Willigenburg, L.G., van   +8 more
core   +1 more source

Obstacle Avoidance and Multitarget Tracking of a Super Redundant Modular Manipulator Based on Bezier Curve and Particle Swarm Optimization

open access: yesChinese Journal of Mechanical Engineering, 2020
A super redundant serpentine manipulator has slender structure and multiple degrees of freedom. It can travel through narrow spaces and move in complex spaces. This manipulator is composed of many modules that can form different lengths of robot arms for
Li Chen, Ying Ma, Yu Zhang, Jinguo Liu
doaj   +1 more source

Avoidance Manipulability for Redundant Manipulators.

open access: yesJournal of the Robotics Society of Japan, 1999
This paper is concerned with avoidance manipulability of redundant manipulators for trajectory tracking and obstacle avoidance. Possibility of avoiding a collision with obstacles during tracking a desired hand trajectory is discussed with proposed avoidance matrix, avoidance manipulability ellipsoid and avoidance manipulability measure which are ...
Minani, Mamoru   +2 more
openaire   +2 more sources

Noncontact impedance control for redundant manipulators [PDF]

open access: yesIEEE Transactions on Systems, Man, and Cybernetics - Part A: Systems and Humans, 1999
Proposes an impedance control method that can regulate a virtual impedance between a robot manipulator and external objects using visual information. The conventional impedance control method is not useful in some cases where no interaction force between the arm and its environment exists, although it is one of the most effective control methods for ...
Toshio Tsuji, Makoto Kaneko
openaire   +4 more sources

Dynamic Reconfiguration Manipulability for Redundant Manipulators

open access: yesJournal of the Robotics Society of Japan, 2016
This paper analyzes the dynamics of robotic manipulator based on a concept called dynamic reconfiguration manipulability (DRM), which gauges the dynamical shape-changeability of a robot based on the redundancy of the robot and the premise that the primary task is the hand task.
Mamoru Minami   +3 more
openaire   +3 more sources

Improved Uncalibrated Visual Servo Strategy for Hyper-Redundant Manipulators in On-Orbit Automatic Assembly

open access: yesApplied Sciences, 2020
Aiming at on-orbit automatic assembly, an improved uncalibrated visual servo strategy for hyper-redundant manipulators based on projective homography is proposed.
Jinlin Gu   +5 more
doaj   +1 more source

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