Results 11 to 20 of about 52,446 (303)

Design and Performance Analysis of Compliant Actuator Mechanism with Variable Stiffness

open access: yesJixie chuandong, 2022
Controllable variable stiffness compliant actuator mechanism has the characteristics of high compliance, high environmental adaptability and good man-machine interaction.
Liu Rong   +4 more
doaj   +2 more sources

Coupling between the Output Force and Stiffness in Different Variable Stiffness Actuators

open access: yesActuators, 2014
The fundamental objective in developing variable stiffness actuators is to enable the actuator to deliberately tune its stiffness. This is done through controlling the energy flow extracted from internal power units, i.e., the motors of a variable ...
Amir Jafari
doaj   +2 more sources

Design and Validation of an Improved Rotational Variable Stiffness Mechanism

open access: yesMachines
In various aspects of robotics, including human–robot interaction, the ability to dynamically adjust the apparent stiffness of an interaction (e.g., between the robot and its environment or between the robot and its payload) has become an important ...
Carl Nelson, Kasey Moomau, Yucheng Li
doaj   +2 more sources

A Novel Laminar Jamming Mechanism for Variable-Stiffness Robotic Arms [PDF]

open access: yesActuators
A central problem in human–robot interaction is the risk of severe injury in humans in the event of a collision with a rigid robot arm. The introduction of variable stiffness into a robot arm mitigates the effects of impact and generates a safe ...
Freddy Caro   +2 more
doaj   +2 more sources

A variable stiffness mechanism for steerable percutaneous instruments: integration in a needle

open access: yesMedical & Biological Engineering & Computing, 2018
Needles are advanced tools commonly used in minimally invasive medical procedures. The accurate manoeuvrability of flexible needles through soft tissues is strongly determined by variations in tissue stiffness, which affects the needle-tissue interaction and thus causes needle deflection.
Iris De Falco   +4 more
openaire   +6 more sources

Design of the VSA (Variable Stiffness Actuator) Mechanism Using Cam Shape [PDF]

open access: yes한국정밀공학회지, 2019
As the exoskeleton robot for the assistance of walking is on the rise, HRI (Human-Robot Interaction) come to be an important issue. So in this research the angle following Variable Stiffness Actuator by using cam for overcoming the limitation of volume ...
Si young Jang   +2 more
doaj   +1 more source

A brief review of variable stiffness and damping magnetorheological fluid dampers

open access: yesFrontiers in Materials, 2022
With the development of magnetorheological fluid (MRF) technology, variable stiffness and damping MRF dampers as semi-active controllers gradually show their unique advantages in the vibration control field.
Huaxia Deng, Xinyu Lian, Xinglong Gong
doaj   +1 more source

A Compact Adjustable Stiffness Rotary Actuator Based on Linear Springs: Working Principle, Design, and Experimental Verification

open access: yesActuators, 2020
Inspired by improving the adaptive capability of the robot to external impacts or shocks, the adjustable stiffness behavior in joints is investigated to ensure conformity with the safety index.
Cong Phat Vo   +3 more
doaj   +1 more source

An Observer-Based Stiffness Estimation for Space Target Capture by Space Robot with Controllable Damping Mechanism

open access: yesAerospace, 2022
The space target capturing task using the spacecraft-manipulator system (SMS) has special significance in on-orbit servicing due to its theoretical challenges and practical value.
Rui Chang   +3 more
doaj   +1 more source

Design and Analysis of a Linear Digital Variable Stiffness Actuator

open access: yesIEEE Access, 2021
In this paper, a novel variable stiffness mechanism (VSM) based on specially designed S-springs made from shape memory alloy (SMA) is developed.
Yapeng Xu, Kai Guo, Jie Sun, Jianfeng Li
doaj   +1 more source

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