Virtual and physical prototy** of a beam-based variable stiffness actuator for safe human-machine interaction

P Bilancia, G Berselli, G Palli - Robotics and Computer-Integrated …, 2020 - Elsevier
This paper reports about the virtual and physical prototy** of an antagonistic Variable
Stiffness Actuator (VSA) to be used on robotic arms specifically realized for physical human …

A variable positive-negative stiffness joint with low frequency vibration isolation performance

R Chen, X Li, Z Yang, J Xu, H Yang - Measurement, 2021 - Elsevier
A new vibration isolation joint with combined positive and negative stiffness is proposed,
which also supports multi-directional stiffness adjustment. Two sets of opposed buckling …

Design and validation of a novel leaf spring-based variable stiffness joint with reconfigurability

J Wu, Z Wang, W Chen, Y Wang… - IEEE/ASME Transactions …, 2020 - ieeexplore.ieee.org
Compliant joints can provide safer physical human-robot interaction. To effectively balance
the response bandwidth and output impedance, variable stiffness joints have been studied …

[HTML][HTML] A variable stiffness actuator based on leaf springs: design, model and analysis

Y Lu, Y Yang, Y Xue, J Jiang, Q Zhang, H Yue - Actuators, 2022 - mdpi.com
In order to adapt to complex and changeable mechanical conditions and make the
deformable mechanisms perform well statically and dynamically, variable stiffness joints …

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

H Liu, D Zhu, J **ao - Mechanism and Machine Theory, 2020 - Elsevier
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 …

A novel tunable stiffness mechanism using filament jamming

J Hu, C **ao, T Wen - Journal of Mechanisms and …, 2021 - asmedigitalcollection.asme.org
The jamming mechanism is a crucial method to tune the stiffness of soft-bodied machines to
adapt to their surroundings. However, it is difficult for the present jamming structures to …

RJVS: A novel, compact and integrated rotating joint with variable stiffness

Y Yang, Y Lu, R Zhang, H Yue - Mechanical Systems and Signal …, 2023 - Elsevier
A variable stiffness joint is a key element for structural deformation, which is widely used in
morphing mechanisms including mechanical arms, folding wings, etc. By adjusting the …

A compliant mechanism with variable stiffness achieved by rotary actuators and shape-memory alloy

A Mekaouche, F Chapelle, X Balandraud - Meccanica, 2018 - Springer
The aim of this article is to study the consequences of the active stiffening of a compliant
mechanism on the workspace created by the deformation of its structure. In connection with …

Design, analysis, and simulation of a new variable stiffness joint based on antagonist principle

MG Contreras-Calderón, MA Laribi… - Proceedings of the …, 2022 - journals.sagepub.com
In robotics, the variable stiffness joints have been developed as an alternative to include
flexibility to a rigid mechanism. Variable Stiffness Joint (VSJ) allows for varying the stiffness …

Study on the stiffness property of a variable stiffness joint using a leaf spring

L Fang, Y Wang - … of the Institution of Mechanical Engineers …, 2019 - journals.sagepub.com
Variable stiffness joints designed to ensure physical safety or adjust stiffness actively have
attracted much attention in recent years. Springs are used in the internal kinematic structures …