Results 11 to 20 of about 1,744,823 (304)

Parallel Architectures for Humanoid Robots [PDF]

open access: yesRobotics, 2020
The structure of humanoid robots can be inspired to human anatomy and operation with open challenges in mechanical performance that can be achieved by using parallel kinematic mechanisms. Parallel mechanisms can be identified in human anatomy with operations that can be used for designing parallel mechanisms in the structure of humanoid robots.
Marco Ceccarelli   +2 more
openaire   +4 more sources

Variable structure control of robot manipulators (the example of the SPRINTA) [PDF]

open access: yes, 2000
This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University, 12/01/2000.The subject of this thesis is the design and practical application of a model-based controller with variable structure control (VSC).
Nigrowsky, Pierre
core   +6 more sources

The kinematics of the redundant $N-1$ wire driven parallel robot [PDF]

open access: yes, 2013
We address the kinematics of the redundant $N-1$ wire-driven parallel robot, i.e. a robot with $N > 3$ wires connected at the same point on the platform. The redundancy allows one to increase the workspace size.
Merlet, Jean-Pierre
core   +1 more source

Human–Robot Cooperative Strength Training Based on Robust Admittance Control Strategy

open access: yesSensors, 2022
A stroke is a common disease that can easily lead to lower limb motor dysfunction in the elderly. Stroke survivors can effectively train muscle strength through leg flexion and extension training.
Musong Lin   +5 more
doaj   +1 more source

Synthesis method of two translational compliant mechanisms with redundant actuation [PDF]

open access: yesMechanical Sciences, 2021
In the fields of electronic packaging, micromanipulation, scanning, and two translational (2T) mechanisms are required, especially with high stiffness, for a large workspace, with good driving stability, and other occasions.
S. Li   +9 more
doaj   +1 more source

Further analysis of the 2-2 wire-driven parallel crane [PDF]

open access: yes, 2013
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
core   +1 more source

Kinematic, Workspace and Force Analysis of A Five-DOF Hybrid Manipulator R(2RPR)R/SP+RR

open access: yesChinese Journal of Mechanical Engineering, 2022
In the present study, the over-constrained hybrid manipulator R(2RPR)R/SP+RR is considered as the research objective. In this paper, kinematics of the hybrid manipulator, including the forward and inverse position, are analyzed.
Yundou Xu   +5 more
doaj   +1 more source

Mechanical Design and Analysis of the End-Effector Finger Rehabilitation Robot (EFRR) for Stroke Patients

open access: yesMachines, 2021
Most existing finger rehabilitation robots are structurally complex and cannot be adapted to multiple work conditions, such as clinical and home. In addition, there is a lack of attention to active adduction/abduction (A/A) movement, which prevents ...
Yu Tian   +6 more
doaj   +1 more source

On the accuracy of $N-1$ wire-driven parallel robots [PDF]

open access: yes, 2013
A $N-1$ wire-driven parallel robot is a robot for which all the $N \ge 3$ wires are connected at the same point of the platform, allowing to control the location of this point. We are interested in the positioning accuracy of such a robot.
Merlet, Jean-Pierre, Jean-Pierre Merlet
core   +1 more source

Contact Model of Revolute Joint with Clearance Based on Fractal Theory

open access: yesChinese Journal of Mechanical Engineering, 2018
The contact stiffness of a mechanical bonding surface is an important parameter in determining the normal and radial contact force. To improve the calculation accuracy of the contact force model, the surface roughness of the bonding surface and the ...
Shi-Hua Li   +4 more
doaj   +1 more source

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