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Soft Gripper using Variable Stiffness Mechanism and Its Application

International Journal of Precision Engineering and Manufacturing, 2018
Soft robots have advantages such as low weight and compact size compared to rigid robots. Variable stiffness is one of the key methods of improving the performance of a soft robot. The soft gripper grasps objects of various shapes or sizes based on the variable stiffness. In a previous study, we validated the variable stiffness mechanism where flexible
KiBeom Ham, Jiho Han, Yong-Jai Park
semanticscholar   +4 more sources

A Novel Passive Shoulder Exoskeleton Designed With Variable Stiffness Mechanism

IEEE Robotics and Automation Letters, 2022
With the population of the world getting older and the working period becoming more extended, exoskeletons can be helpful to prevent occupational injuries and provide assistance for physically exhausting works. In this letter, a novel compact passive exoskeleton able to assist the elderly and workers with overhead tasks is introduced.
Felix Balser   +3 more
openaire   +2 more sources

Design, modeling and testing of a compact variable stiffness mechanism for exoskeletons

Mechanism and Machine Theory, 2020
In this paper, the mechanical design of a novel variable stiffness mechanism (VSM) with reconfigurability is presented. The design of VSM is based on a zero-length base link four-bar linkage, integrated with a linear spring.
Zhongyi Li   +4 more
semanticscholar   +3 more sources

Conceptual design and parameter optimization of a variable stiffness mechanism for producing constant output forces

Mechanism and Machine Theory, 2020
A variable stiffness mechanism is of great significance for simplifying the control scheme of a robot for a polishing process, which requires that the mechanism complies with the displacement variation along its axial axis while keeping the output force ...
Haitao Liu, Dongxu Zhu, Xiao Juliang
semanticscholar   +3 more sources

Continuously Variable Stiffness Mechanism Using Nonuniform Patterns on Coaxial Tubes for Continuum Microsurgical Robot

IEEE Transactions on Robotics, 2019
Variable stiffness enables the safe and effective operation of the minimally invasive surgical instruments. In this article, we propose a continuously variable stiffness mechanism of the scalable tubular structure.
Jongwoo Kim   +4 more
semanticscholar   +3 more sources

A redundant rehabilitation robot with a variable stiffness mechanism

Mechanism and Machine Theory, 2020
This paper presents a variable stiffness mechanism suitable for use in robotic rehabilitation. By inherently varying both the magnitude and direction of loading in the mechanism using a single input, a large variation in effective stiffness is achieved ...
C. Nelson, L. Nouaille, G. Poisson
semanticscholar   +3 more sources

A scalable monolithic 3D printable variable stiffness mechanism

2024 IEEE International Conference on Robotics and Automation (ICRA)
Variable Stiffness Mechanisms (VSM) are becoming ubiquitous in mechatronics given the benefit they provide in terms of safety and performance.
Paul Baisamy   +2 more
openaire   +2 more sources

A Soft Robot With Variable Stiffness Multidirectional Grasping Based on a Folded Plate Mechanism and Particle Jamming

IEEE Transactions on Robotics, 2022
Despite good performance in grasping irregular fragile objects, soft grippers exhibiting low stiffness, and carrying capacity lack multidirectional grasping ability in the case of inclination.
Hang Wei   +4 more
semanticscholar   +3 more sources

A new high-static-low-dynamic stiffness vibration isolator based on magnetic negative stiffness mechanism employing variable reluctance stress

Journal of Sound and Vibration, 2020
To improve the passive control effect on low frequency micro-vibration of structures with high static support stiffness, this paper proposed a high-static-low-dynamics stiffness vibration isolator (HSLDs-VI).
Feng Zhang   +3 more
semanticscholar   +3 more sources

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