Results 21 to 30 of about 97,870 (293)
The Journal of Engineering, 2019 A technique for driving a star-connected PMSM without a position or speed sensor, which is known in the literature as Direct Flux Control (DFC), is described here.
Klaus Schuhmacher +2 more
doaj +1 more source
Actuators, 2020 Electro-hydrostatic actuator (EHA) has significance in a variety of industrial tasks. For the purpose of elevating the working performance, we put forward a sliding mode control strategy for EHA operation with a damping variable sliding surface. To start
Mingkang Wang +4 more
doaj +1 more source
A High-Order Load Model and the Control Algorithm for an Aerospace Electro-Hydraulic Actuator
Actuators, 2021 It is difficult to describe precisely, and thus control satisfactorily, the dynamics of an electro-hydraulic actuator to drive a high thrust liquid launcher engine, whose structural resonant frequency is usually low due to its heavy inertia and ...
Shoujun Zhao +6 more
doaj +1 more source
Design of a cost-effective magnetic gearbox for an aerospace application
The Journal of Engineering, 2019 Magnetic gears are designed to perform in a highly reliable manner, and offer several advantages compared to mechanical gears but difficulties with manufacturing techniques and cost are strong handicaps. In contrast to conventional gears, the contact and
Maamar Benarous, Marlene Trezieres
doaj +1 more source
Flap system power drive unit (PDU) architecture optimisation
The 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
Energy 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
Sensors, 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
Micromachines, 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]
INCAS 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
On the investigation of a reliable actuation control method for ohmic RF MEMS switches [PDF]
, 2011 This is a post-print version of the article. The official published version can be accessed from the link below - Copyright @ 2011 ElsevierEfficient control of RF MEMS switches is a very important issue as it is correlated to main failure mechanisms ...
Nilavalan, R +3 more
core +1 more source