Results 41 to 50 of about 2,590,880 (193)

Design and Modeling of Parallel Two-degree-of-freedom Variable Stiffness Actuator

open access: yes, 2020
In this paper, a new 2-DOF variable stiffness actuator based on a 2-DOF spherical wrist parallel mechanism is proposed. A 2-DOF VSA based on a parallel ball wrist mechanism and a parallel arrangement of leaf spring sets is used.
Liu,Yuwang   +5 more
core   +1 more source

A clutch mechanism for switching between position and stiffness control of a variable stiffness actuator [PDF]

open access: yes, 2015
Variable stiffness actuators (VSA) are fostered in robotics for their capability to address physical interaction with a physically adjustable compliance, being advantageous in terms of efficiency, safety and adaptability to unknown environments.
VITIELLO, Nicola   +8 more
core   +1 more source

Variable stiffness prosthetic joint [PDF]

open access: yes
The current invention is related to a variable stiffness prosthetic joint, for example a variable stiffness prosthetic kneejoint, comprising an inferior part, a superior part, and a variable stiffness actuator.
Carloni, Raffaella, Tagliabue, Gregorio
core   +4 more sources

Research on a Variable-Stiffness Joint and Its Application in Actuators

open access: yesActuators, 2023
Variable-stiffness actuators can flexibly adjust the overall or local stiffness of a structure, thus enabling reconstruction, adaptation, and locking capabilities that can meet a wide range of task requirements.
Qi Wang   +4 more
doaj   +1 more source

Characterization of Control-Dependent Variable Stiffness Behavior in Discrete Muscle-Like Actuators

open access: yesApplied Sciences, 2018
This paper presents the modeling, characterization and validation for a discrete muscle-like actuator system composed of individual on–off motor units with complex dynamics inherent to the architecture.
Caleb Fuller, Joshua Schultz
doaj   +1 more source

Embodying Desired Behavior in Variable Stiffness Actuators* [PDF]

open access: yesIFAC Proceedings Volumes, 2011
Variable stiffness actuators are a class of actuators with the capability of changing their apparent output stiffness independently from the actuator output position. This is achieved by introducing internally a number of compliant elements, and internal actuated degrees of freedom that determine how these compliant elements are perceived at the ...
Visser, L.C.   +2 more
openaire   +2 more sources

Programmable and Variable‐Stiffness Robotic Skins for Pneumatic Actuation

open access: yesAdvanced Intelligent Systems, 2023
Pneumatic soft actuators possess relatively fast response, inherent high flexibility, and achieve extraordinary shape morphing under large deformations. Conventionally, the entire body of soft pneumatic robots needs to be designed for specific applications.
Weinan Gao   +8 more
openaire   +5 more sources

Design and Analysis of Variable Flexible Actuator for Human-Robot Interaction

open access: yesXibei Gongye Daxue Xuebao, 2019
In view of the shortcomings of the traditional high-rigidity robots that can't ensure safety of human-robot interaction and the adaptability of complex environment, a variable stiffness flexible actuator is proposed for the robot joint based on the ...

doaj   +1 more source

Improving the stiffness of mechanical layer jamming cable-driven soft actuators through design optimization and frame reinforcement

open access: yesMechanical Engineering Journal
Soft cable-driven actuators offer flexibility and adaptability but often lack stiffness, limiting their application in tasks requiring high load capacity. A variable stiffness mechanism has been developed to change the stiffness as needed to increase the
Chinvudh UAHCHINKUL   +2 more
doaj   +1 more source

Soft Robotic Snake with Variable Stiffness Actuation [PDF]

open access: yes, 2017
In this paper, we present a prototype of a 3D printed snake-like robot for search and rescue applications, inspired by biological snake anatomy and locomotion. Unlike traditional robotics, this design takes advantage of soft materials to create a robot that is resilient to shock impacts, such as from falling debris or unsound flooring, and that can ...
Ryan Draper   +3 more
openaire   +1 more source

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