Results 21 to 30 of about 32,185 (269)

Flap system power drive unit (PDU) architecture optimisation

open access: yesThe Journal of Engineering, 2019
Conventional flap and slat high-lift surfaces actuation systems in a commercial aircraft consist of actuators mechanically connected via a transmission system across the wingspan, driven from a centralised power drive unit comprising of a hydraulic ...
Maamar Benarous, Isabella Panella
doaj   +1 more source

Analysis and fault-tolerant control of inter-turn short-circuit fault for five-phase permanent-magnet synchronous machine

open access: yesEnergy Reports, 2022
For the demand of high reliability in the aerospace field, multi-phase electric machines have become a research hotspot for the fault-tolerant ability. Inter-turn short-circuit fault is one of the main fault forms in the electric machine.
Zaiping Zheng   +5 more
doaj   +1 more source

A Solution to Ambiguities in Position Estimation for Solenoid Actuators by Exploiting Eddy Current Variations

open access: yesSensors, 2020
Position estimation techniques for solenoid actuators are successfully used in a wide field of applications requiring monitoring functionality without the need for additional sensors. Most techniques, which also include standstill condition, are based on
Niklas König, Matthias Nienhaus
doaj   +1 more source

Poly(N-isopropylacrylamide) Hydrogel for Diving/Surfacing Device

open access: yesMicromachines, 2021
Underwater robots and vehicles have received great attention due to their potential applications in remote sensing and search and rescue. A challenge for micro aquatic robots is the lack of small motors needed for three-dimensional locomotion in water ...
Jung Gi Choi   +6 more
doaj   +1 more source

Conceptual Design of a Low - Cost Linear Actuator for Variable Span Wing Application [PDF]

open access: yesINCAS Bulletin, 2021
Aerospace actuators can be found throughout modern commercial and experimental aircraft, as well as in military and space exploration. The aerospace industry is not only growing, but also rapidly changing and the demand for aerospace actuators is ...
Aynul HOSSAIN
doaj   +1 more source

Bio-inspired design of soft mechanisms using a toroidal hydrostat

open access: yesCell Reports Physical Science, 2021
Summary: Biology is replete with soft mechanisms of potential use for robotics. Here, we report that a soft, toroidal hydrostat can be used to perform three functions found in both living and engineered systems: gripping, catching, and conveying.
Samuel E. Root   +7 more
doaj   +1 more source

Concurrent Actuation and Sensing in Fluid by Cilia‐Like Transducers

open access: yesAdvanced Intelligent Systems, 2023
Motile cilia are miniature, hair‐like organelles whose beating moves fluid in various organisms and the human body. Motile cilia are also able to sense many mechanical or fluidic cues.
Wenkang Wang, Shanyuan Song, Wenqi Hu
doaj   +1 more source

Innovative Smart Drilling with Critical Event Detection and Material Classification

open access: yesJournal of Manufacturing and Materials Processing, 2023
This work presents a cyber-physical drilling machine that incorporates technologies discovered in the fourth industrial revolution. The machine is designed to realize its state by detecting whether it hits or breaks through the workpiece, without the ...
Kantawatchr Chaiprabha   +1 more
doaj   +1 more source

Water‐resistant conductive organogels with sensation and actuation functions for artificial neuro‐sensory muscular systems

open access: yesSmartMat, 2022
The development of functional flexible conductive materials can significantly contribute to the improvement of intelligent human–computer integration.
Zhixing Zhang   +4 more
doaj   +1 more source

Magnetic Performance of Eddy Current Suppressing Structures in Additive Manufacturing

open access: yesActuators
Additively manufactured soft-magnetic components are inherently bulky leading to significant eddy current losses when applied to electrical machines.
Carsten Klein   +2 more
doaj   +1 more source

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