Results 51 to 60 of about 1,794,273 (287)

Aerodynamic Performance Assessment of Distributed Electric Propulsion after the Wing Trailing Edge

Applied Sciences, 2023
Distributed electric propulsion (DEP) with four propellers distributed along the rear edge of the wing (pusher DEP configuration) promote aerodynamic interactions to a higher level.
Yao Lei, Xiangzheng Zhao
doaj   +1 more source

Turboelectric Distributed Propulsion Protection System Design Trades [PDF]

SAE Technical Paper Series, 2014
<div class="section abstract"><div class="htmlview paragraph">The Turboelectric Distributed Propulsion (TeDP) concept uses gas turbine engines as prime movers for generators whose electrical power is used to drive motors and propulsors. For this NASA N3-X study, the motors, generators, and DC transmission lines are superconducting, and the ...
Ross, C., Armstrong, M., Blackwelder, M., Jones, C., Norman, P., Fletcher, S.   +5 more
openaire   +2 more sources

Microstructure Modification of Additively Manufactured Mo–9Si–8B by Annealing and Its Effects on High‐Temperature Mechanical Properties

Advanced Engineering Materials, EarlyView.
Postbuild annealing systematically modifies the phase fractions and morphology of EB‐PBF processed Mo–9Si–8B. Quantitative microstructure–property correlations reveal how controlled phase evolution enhances high‐temperature compressive strength and creep resistance.
Christopher Schmidt, Yong Chen, Georg Hasemann, Benjamin Wahlmann, Carolin Körner, Manja Krüger   +5 more
wiley   +1 more source

Research on SiC Speed Controller for High-Voltage Distributed Electric Propulsion System

International Journal of Aerospace Engineering
The shift towards green aviation necessitates the adoption of all-electric aircraft, marking an essential trend in the aviation industry. Distributed propulsion systems enhance aircraft flexibility and reliability, synchronously reducing performance ...
Labin Wang, Yunhan He, Yun Xu, Li Fan, Junhua Xiang   +4 more
doaj   +1 more source

Superlubricity and Corrosion Inhibition Properties of Solvate Ionic Liquids in Hybrid Carbon Fiber Reinforced Plastic–Steel Interfaces

Advanced Engineering Materials, EarlyView.
Solvate ionic liquids lubrication reduced the coefficient of friction by ∼60% compared to dry sliding, reaching steady‐state values as low as 0.04–0.05. Corrosion weight‐loss measurements in 1 M HCl further demonstrated significant inhibition behavior, with only 100 ppm of [Li(G3)][TFSI] (∼68.5 μL/L) reducing corrosion‐product weight loss by 63 ...
Sameh Dabees, Timothy Harte, Bhagya Dharmasiri, Y. Athulya Wickramasingha, David J. Hayne, Daniel J. Eyckens, Luke C. Henderson   +6 more
wiley   +1 more source

Laser Propulsion Standardization Issues [PDF]

, 2010
It is a relevant issue in the research on laser propulsion that experimental results are treated seriously and that meaningful scientific comparison is possible between groups using different equipment and measurement techniques.
Sinko, John Elihu, Hans-Peter Röser, John E. Sinko, Stefan Scharring, Akihiro Sasoh, Eckel, Hans-Albert, Claude Phipps, Scharring, Stefan, Sasoh, Akihiro, Hans-Albert Eckel, Röser, Hans-Peter   +10 more
core   +1 more source

Vibration Characteristics and Power Flow Analyses of a Ship Propulsion Shafting System with General Support and Thrust Loading

Shock and Vibration, 2020
In this paper, flexural vibration and power flow transmission of a ship propulsion shafting structure are analyzed via energy principle description in conjunction with Rayleigh–Ritz procedure, in which the shafting vibration displacement is constructed ...
Deshui Xu, Jingtao Du, Chuan Tian
doaj   +1 more source

Architecture‐Driven Sensor Stability in Weft‐Knitted Engineering Textiles

Advanced Engineering Materials, EarlyView.
Textile‐integrated sensor architectures are systematically compared to evaluate their electromechanical behavior under combined mechanical and environmental loading. Pocket‐based integration exhibits stable and reproducible signals, whereas tunnel‐based routing shows higher sensitivity accompanied by increased variability.
Adnan Maroof Khan, Johannes Wendler, Dilbar Aibibu, Johannes Mersch, Michael Wöltje, Chokri Cherif   +5 more
wiley   +1 more source

Adaptive Foam 3D Printing of Ultralight and Multifunctional Materials

Advanced Engineering Materials, EarlyView.
Adaptive foam 3D printing, enabled by expandable microspheres, imparts cellular structures to thermoplastic and thermosetting polymers, manufactured through a variety of processes including fused filament fabrication, direct ink writing, digital light processing, and inkjet printing.
Nariman Rajabifar, Amir Ameli
wiley   +1 more source

Preliminary Noise Assessment of Aircraft with Distributed Electric Propulsion [PDF]

2018 AIAA/CEAS Aeroacoustics Conference, 2018
Electric and hybrid-electric propulsion technologies in aviation are becoming more attractive\ud for aviation stakeholders not only due to the resulting reduction or elimination of the\ud dependency on oil, whose availability and price are uncertain, but also because they are more\ud reliable and efficient than traditional internal combustion engines ...
Synodinos, AP, Self, RH, Torija Martinez, AJ   +2 more
openaire   +1 more source