Results 61 to 70 of about 36,677 (300)

Co-Design Strategies for Optimal Variable Stiffness Actuation

IEEE/ASME Transactions on Mechatronics, 2017
Robotic systems powered by variable stiffness actuators (VSAs) provide important benefits for applications that demand safety, performance, and energy-efficiency. Being multidisciplinary systems, performance of such devices cannot be fully exploited unless co-design techniques that account for their inherent design couplings are employed for their ...
Abdullah Kamadan, Gullu Kiziltas, Volkan Patoglu   +2 more
openaire   +3 more sources

Bioinspired Shape‐Memory Hook Fasteners With Programmable Interlocking and Silent Release

Advanced Engineering Materials, EarlyView.
Bioinspired hook fasteners made from epoxy shape‐memory polymers are shown to switch between strong, secure attachment and gentle, silent release when heated. By combining programmable geometry and material response, these adaptive fasteners outperform commercial systems in strength and noise control, enabling new solutions for robotics, medical ...
Maria I. Vallejo Ciro, Manuel J. Carvajal Loaiza, Rahaf Homssi, Vanessa Restrepo   +3 more
wiley   +1 more source

3D‐Printed Sulfur‐Derived Polymers With Controlled Architectures for Lithium‐Sulfur Batteries

Advanced Functional Materials, EarlyView.
Rheology‐guided formulation design for direct ink writing enables the fabrication of 3D sulfur copolymer cathodes with controlled architectures for lithium‐sulfur batteries. The printed electrodes exhibit multiscale porosity and high sulfur utilization, delivering enhanced electrochemical performance compared to conventional cast electrodes.
Bin Ling, Haoran Wang, Pan Yang, Rishav Agrawal, Alex R. Neale, Laurence J. Hardwick, Tom Hasell, Esther García‐Tuñón   +7 more
wiley   +1 more source

Preliminary Design and Control of an Ankle Rehabilitation Robot With Variable Stiffness Actuator

IEEE Access
Intrinsic robotic compliance is crucial for enhancing the safety of physical human-robot interaction. This study proposes a variable stiffness ankle rehabilitation robot for rehabilitation training.
Laibin Luo, Zhe Wei, Yao Sun, Wenxin Zhang, Jie Zhou   +4 more
doaj   +1 more source

Variable stiffness actuators : modeling, control, and application to compliant bipedal walking [PDF]

, 2013
Robots are traditionally used in factory environments, where they perform tasks with high precision and speed. This kind of robots is designed to have a high mechanical stiffness and with powerful motors, so that the required precision and speed can be achieved.
openaire   +2 more sources

Variable Stiffness Actuators: Review on Design and Components

IEEE/ASME Transactions on Mechatronics, 2016
Variable stiffness actuators (VSAs) are complex mechatronic devices that are developed to build pas- sively compliant, robust, and dexterous robots. Numerous different hardware designs have been developed in the past two decades to address various demands on their functionality. This review paper gives a guide to the design process from the analysis of
Wolf, Sebastian, Grioli, G., Eiberger, Oliver, Friedl, Werner, Grebenstein, Markus, Höppner, Hannes, Burdet, Etienne, Caldwell, D., Carloni, R., Catalano, M., Lefeber, D., Stramigioli, S., Tsagarakis, N., Van Damme, M., Van Ham, R., Vanderborght, B., Visser, L.C., Bicchi, Antonio, Albu-Schäffer, Alin Olimpiu   +18 more
openaire   +3 more sources

Digital Actuation Control of Soft Robotic Origami With Self‐Folding Liquid Crystal Elastomer Hinges

Advanced Functional Materials, EarlyView.
Self‐folding soft‐rigid hybrid robotic origami is enabled by liquid crystal elastomer actuators with embedded Joule heating and closed‐loop digital control. Digitally addressable hinges provide reversible and programmable transitions between distinct folded states while maintaining actuation performance at high cycle counts (over 1500).
David C. Bershadsky, Tuo Zhao, Glaucio H. Paulino, Emily C. Davidson   +3 more
wiley   +1 more source

Design and Dynamic Modeling of Variable Stiffness Joint Actuator Based on Archimedes Spiral

IEEE Access, 2018
Traditional rigid actuators are not applicable to robot applications involving explosive actions. Solutions suggested by previous studies have mainly focused on the concept of stiffness variation, its design and verification, and the explosive actions of
Wei Wang, Yanwei Zhao, Yangmin Li
doaj   +1 more source

Quasi‐Static to Supersonic Energy Absorption of Nanoarchitected Tubulanes and Schwarzites

Advanced Functional Materials, EarlyView.
Nanoarchitected energy‐absorptive Tubulanes exhibit record energy absorption under quasi‐static conditions and exceptional inelastic energy dissipation under 750 m s−1 ballistics impact, with high performance spanning strain rates of 12 orders of magnitude.
Peter Serles, Alianna Maguire, Thomas Butruille, Jet Lem, Shuo Yang, Pedro Guerra Demingos, Sahar Choukir, Michel Haché, Boran Kumral, Katherine Jia, Charles Jia, Yu Zou, Chandra Veer Singh, Carlos M. Portela, Jun Lou, Pulickel M. Ajayan, Tobin Filleter   +16 more
wiley   +1 more source

Modeling of macro fiber composite actuated laminate plates and aerofoils [PDF]

, 2020
© 2019 Sage Publications . The final, definitive version of this paper has been published in the Journal of Intelligent Material Systems and Structures by Sage Publications Ltd. All rights reserved.
Blazquez Calzada, Angela Carmen, Gilmour, Kevin, Thomas, Peter   +2 more
core   +2 more sources