Results 21 to 30 of about 162,736 (280)

Investigations of the key mechanism of Carbon-Nanotube Actuators and their dependencies [PDF]

, 2010
Future adaptable applications require electro-mechanical actuators with a high weight-related en-ergy. Among modern multi-functional materials carbon nanotubes (CNTs) have some special char-acteristics which give them the potential to solve this demand ...
Mahrholz, Thorsten, Wierach, Peter, Sinapius, Michael, Geier, Sebastian, Riemenschneider, Johannes   +4 more
core   +1 more source

Revealing the Giant Electromechanical Effects in Yttria-Stabilized Zirconia Single Crystal. [PDF]

Adv Sci (Weinh)
Giant electromechanical responses are uncovered in yttria‐stabilized zirconia single crystal (SC‐YSZ), exhibiting pronounced orientation dependence. The giant electrostriction and piezoelectricity are directly correlated with the long‐range transport kinetics of oxygen vacancies.
Yi Z, Pan K, Hu C, Liao L, He Z, Guo Z, Wu Y, Zhao C, Xie S.   +8 more
europepmc   +2 more sources

High electromechanical reponses of ultra-high-density aligned nano-porous microwave exfoliated graphite oxide/polymer nano-composites ionic actuators

International Journal of Smart and Nano Materials, 2014
High elastic energy density and high-efficiency ionic electromechanical actuators were prepared from aligned activated microwave exfoliated graphite oxide (A-aMEGO)/polymer nano-composites, and the electromechanical performance was characterized.
M. Ghaffari, Y. Zhou, M. Lin, Chong Min Koo, Q.M. Zhang   +4 more
doaj   +1 more source

Tunable Electromechanical Liquid Crystal Elastomer Actuators

Advanced Intelligent Systems, 2020
Liquid crystal elastomers (LCE) are soft materials which anisotropically shape morph in response to external stimuli. Herein, a method to produce large‐area carbon nanotube–LCE nanocomposite films with exceptional electrostrictive properties is examined.
Tyler Guin, Holly E. Hinton, Eric Burgeson, Christopher C. Bowland, Logan T. Kearney, Yuzhan Li, Ilia Ivanov, Ngoc A. Nguyen, Amit K. Naskar   +8 more
doaj   +1 more source

A pneumatic random-access memory for controlling soft robots.

PLoS ONE, 2021
Pneumatically-actuated soft robots have advantages over traditional rigid robots in many applications. In particular, their flexible bodies and gentle air-powered movements make them more suitable for use around humans and other objects that could be ...
Shane Hoang, Konstantinos Karydis, Philip Brisk, William H Grover   +3 more
doaj   +1 more source

Theoretical analysis of dynamic property for piezoelectric cantilever triple-layer benders with large piezoelectric and electromechanical coupling coefficients [PDF]

Journal of Advanced Dielectrics, 2016
Ferroelectric single crystals, such as PZN-PT, provide novel prospects in piezoelectric bending devices such as actuators, sensors or energy harvesters because of their extraordinarily large piezoelectric coefficients.
Li Jiao Gong, Cheng Liang Pan, Qiao Sheng Pan, Zhi Hua Feng   +3 more
doaj   +1 more source

Control of an electromechanical actuator for camless engines [PDF]

Proceedings of the 2003 American Control Conference, 2003., 2004
This paper presents a gray box approach for identifying physical parameters of an electromechanical actuator based on frequency response data. A feedforward and linear-quadratic regulator feedback controller was developed to control the EMCV actuator for soft seating.
Chun Tai, Tsu-Chin Tsao
openaire   +2 more sources

Conceptual Design of Electromechanical Actuation Systems for Large-Sized Directional Control Valves

Actuators, 2021
Increasing performance in modern hydraulics is achieved by a close investigation of possible enhancements of its components. Prior research has pointed out that electromechanical actuators can form suitable alternatives to hydraulically piloted control ...
Tobias Vonderbank, Katharina Schmitz
doaj   +1 more source

Preliminary Sizing of the Electrical Motor and Housing of Electromechanical Actuators Applied on the Primary Flight Control System of Unmanned Helicopters

Aerospace, 2022
Helicopter dronization is expanding, for example, the VSR700 project. This leads to the integration of electromechanical actuators (EMAs) into the primary flight control system (PFCS).
Jeremy Roussel, Marc Budinger, Laurent Ruet   +2 more
doaj   +1 more source

Performance and Reliability Evaluation of Innovative High-Lift Devices for Aircraft Using Electromechanical Actuators

Aerospace
In the last decades, electromechanical actuators started to be introduced in transport aircraft for primary and secondary flight control surfaces. Some innovative architectures have been proposed in the literature to use these actuators for high-lift ...
Carlos Cabaleiro de la Hoz, Marco Fioriti, Luca Boggero   +2 more
doaj   +1 more source