Results 61 to 70 of about 2,655,722 (289)

A Magnetically-Actuated Coiling Soft Robot With Variable Stiffness

IEEE Robotics and Automation Letters, 2023
Soft and flexible magnetic robots have gained significant attention in the past decade. These robots are fabricated using magnetically-active elastomers, are capable of large deformations, and are actuated remotely thus allowing for small robot size. This combination of properties is appealing to the minimally invasive surgical community, potentially ...
Lloyd, Peter, Thomas, Theodosia Lourdes, Venkiteswaran, Venkatasubramanian Kalpathy, Pittiglio, Giovanni, Chandler, James H., Valdastri, Pietro, Misra, Sarthak, Lloyd, Peter Robert   +7 more
openaire   +5 more sources

Phase Changing Materials-Based Variable-Stiffness Tensegrity Structures [PDF]

, 2020
Soft robots leverage deformable bodies to achieve different types of locomotion, improve transportability, and safely navigate cluttered environments. In this context, variable-stiffness structures provide soft robots with additional properties, such as ...
Shintake, Jun, Zappetti, Davide, Jeoung, Seung Hee, Floreano, Dario, Zappetti D, Floreano D, Jeong SH, Shintake J   +7 more
core   +2 more sources

Biodegradable and Biocompatible Functional Polymers for Biomedical Applications

Advanced Functional Materials, EarlyView.
Biodegradable and biocompatible functional polymers integrate electrical, mechanical, and stimuli‐responsive functionalities while enabling programmed degradation under physiological conditions. This review introduces recent advances in conductive, shape‐memory, self‐healing, photocurable, and adhesive polymer systems, emphasizing material design ...
Won Bae Han, Shuvra Mondal, Sungkeun Han, Chan‐Hwi Eom, Venkata Ramesh Naganaboina, Suk‐Won Hwang   +5 more
wiley   +1 more source

Snap-through of bistable variable stiffness laminates using MFC actuators

, 2021
Unsymmetric composite laminates exhibit two or more stable equilibrium shapes with opposite curvature as a result of residual thermal stresses induced during the curing process.
Jansen, E. L., Anilkumar, P. M., Haldar, A., Rolfes, R., Rao, B. N., A. Haldar, B.N. Rao, P.M. Anilkumar, E.L. Jansen, R. Rolfes   +9 more
core   +1 more source

Strong Lead‐Free Bioinspired Piezoceramics for Durable Energy Transducers

Advanced Functional Materials, EarlyView.
We fabricated brick‐and‐mortar lead‐free piezoceramics with Bi0.5Na0.5TiO3 monocrystal platelets as bricks and amorphous silica as mortar. The alignment of the bricks and the presence of the amorphous silica led to anisotropic residual stresses. These residual stresses increase the samples toughness, strength and durability while the brick alignment ...
Ruxue Yang, Temesgen Tadeyos Zate, Peiren Wang, Soumyajit Mojumder, Elo Overgaard Mogensen, Oriol Gavalda‐Diaz, Zihe Li, Shitong Zhou, Ajeet Kumar, James Roscow, Hamideh Khanbareh, Astri Bjørnetun Haugen, Florian Bouville   +12 more
wiley   +1 more source

Design Optimization of a Variable Stiffness Actuator for Knee Exoskeleton Application

IEEE Access, 2023
The field of wearable devices and exoskeletons for rehabilitation and assistance is one of the main fields where variable stiffness actuators (VSAs) are continuously incorporated.
Ahmad Aljarah, Mohammad I. Awad, Mohamed Boushaki, Irfan Hussain   +3 more
doaj   +1 more source

Classification of Variable Stiffness Actuators - part 1 [PDF]

, 2017
Rola stawów podatnych mechanicznie (w szczególności stawów o zmiennej podatności mechanicznej) w dziedzinie współczesnej robotyki – zwłaszcza społecznej i mobilnej – staje się coraz bardziej znacząca.
Bartłomiej Kozakiewicz, Tomasz Winiarski, Winiarski, T., Kozakiewicz, B.   +3 more
core   +2 more sources

Dynamically Actuated Reconfigurable Topographical Surface Enables Active Control of Implant‐Associated Infections

Advanced Functional Materials, EarlyView.
A dynamically actuated reconfigurable topographical surface (DARTS) integrates contact‐mediated bactericidal nanotopography with programmable mechanical actuation to actively disrupt bacterial biofilms. Dynamic surface reconfiguration enhances bacterial killing and suppresses implant‐associated infections in vivo, providing a new strategy for active ...
Mohammad Asadi Tokmedash, Jihun Lee, J. Scott VanEpps, Sungmin Nam, Jouha Min   +4 more
wiley   +1 more source

A Novel Cam-Based Variable Stiffness Actuator: Pitch Curve Synthetic Approach for Reconfiguration Design

Mathematics, 2022
Variable stiffness actuators (VSA) have attracted much attention because of their potential for human-like interaction behaviors. This paper devotes to improving the VSA’s versatility.
Fanghua Mei, Shusheng Bi, Bianhong Li
doaj   +1 more source

Bio‐Inspired Artificial Ionic Mechanoreceptor

Advanced Functional Materials, EarlyView.
A skin‐inspired artificial mechanoreceptor based on ionic interactions is presented for biomimetic tactile sensing. Pressure‐driven ionic redistribution within microfluidic channels generates a self‐powered electrical signal without external bias. The generated waveform exhibits mechanoreceptor‐like temporal features, including overshoot and undershoot,
Mohammad Akbari, Jeppe Don, Lasse A. N. Pedersen, John Noee, Rassoul Tabassian   +4 more
wiley   +1 more source