Results 31 to 40 of about 235,022 (318)

Distributed variable stiffness joint assist mechanism based on laminated structure

open access: yesInternational Journal of Advanced Robotic Systems, 2021
Exoskeleton technology is more and more widely used in military, human rehabilitation, and other fields, but exoskeleton assisting mechanisms have problems such as high quality, concentrated driving sources, and poor flexibility.
Zhenquan Fan   +4 more
doaj   +1 more source

Modeling and Self-Learning Soft-Grasp Control for Free-Floating Space Manipulator During Target Capturing Using Variable Stiffness Method

open access: yesIEEE Access, 2018
During target capturing operation, the changes in the dynamics parameters of a free-floating space manipulator degrade the performance of the base attitude stabilization.
Ming Chu, Xingyu Wu
doaj   +1 more source

Application of Leg, Vertical, and Joint Stiffness in Running Performance: A Literature Overview

open access: yesApplied Bionics and Biomechanics, 2021
Stiffness, the resistance to deformation due to force, has been used to model the way in which the lower body responds to landing during cyclic motions such as running and jumping.
Artur Struzik   +4 more
doaj   +1 more source

Immersion and Invariance Control for an Antagonistic Joint with Nonlinear Mechanical Stiffness

open access: yes, 2010
Tendon controlled robots with nonlinear mechanical tendon stiffness are becoming more and more popular. With the appropriate actuation, the joint position and the stiffness between motor and link side can be prescribed at the same time. In this paper,
Hirzinger, Gerd   +5 more
core   +1 more source

Design, modeling, and control of a variable stiffness elbow joint

open access: yesThe International Journal of Advanced Manufacturing Technology, 2022
AbstractNew technological advances are changing the way robotics are designed for safe and dependable physical human–robot interaction and human-like prosthesis. Outstanding examples are the adoption of soft covers, compliant transmission elements, and motion control laws that allow compliant behavior in the event of collisions while preserving ...
M. Baggetta   +3 more
openaire   +2 more sources

A New Variable Stiffness Design: Matching Requirements of the Next Robot Generation

open access: yes, 2008
— Facing new tasks, the conventional rigid design of robotic joints has come to its limits. Operating in unknown environments current robots are prone to failure when hitting unforeseen rigid obstacles. Moreover, safety constraints are a major aspect for
Hirzinger, Gerd   +3 more
core   +1 more source

Development of Variable Viscoelastic Joint Module Performance Evaluation and Proposal of Application Examples

open access: yesActuators, 2022
With the diversification of robots, modularization of robots has been attracting attention. In our previous study, we developed a robot that mimics the principle of human joint drive using a straight-fiber-type pneumatic rubber artificial muscle ...
Tetsuhito Fujita   +5 more
doaj   +1 more source

Joint Stiffness Identification of a Heavy Kuka Robot with a Low-cost Clamped End-effector Procedure

open access: yes, 2014
This paper proposes two new methods for the identification of static stiffnesses of multi degrees of freedom heavy industrial robots. They are based on a locked link joint procedure obtained with an end-effector fixed to the environment. The first method
JUBIEN, Anthony   +5 more
core   +1 more source

A Novel Distal Hybrid Pneumatic/Cable‐Driven Continuum Joint with Variable Stiffness Capacity for Flexible Gastrointestinal Endoscopy

open access: yesAdvanced Intelligent Systems, 2023
The robot‐assisted flexible access surgery represented by the emerging robot‐assisted flexible endoscopy (FE) and natural orifice transluminal endoscopic surgery demands flexible and continuum manipulators instead of the rigid and straight instruments in
Xiangyu Luo   +4 more
semanticscholar   +1 more source

Modeling of Configuration-Dependent Flexible Joints for a Parallel Robot

open access: yesAdvances in Mechanical Engineering, 2010
This paper provides a method to determine the variable flexible joint parameters which are dependent on configurations for a PRS Parallel Robot. Based on the continuous force approach, virtual springs were used between the joint components to simulate ...
Zili Zhou   +2 more
doaj   +1 more source

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