Results 11 to 20 of about 10,974 (193)

Primary parameters design method for distributed electric propulsion unmanned aerial vehicle

open access: yesXibei Gongye Daxue Xuebao, 2021
Distributed electric propulsion technology brings new ideas to the design of unmanned aerial vehicle(UAV), such as improving aerodynamic efficiency and propulsive efficiency, and new concept of vertical/short takeoff and landing configurations.

doaj   +2 more sources

Comparison of Aero-Propulsive Performance Predictions for Distributed Propulsion Configurations [PDF]

open access: yes55th AIAA Aerospace Sciences Meeting, 2017
NASA's X-57 "Maxwell" flight demonstrator incorporates distributed electric propulsion technologies in a design that will achieve a significant reduction in energy used in cruise flight. A substantial portion of these energy savings come from beneficial aerodynamic-propulsion interaction.
Nicholas K. Borer   +7 more
openaire   +3 more sources

A Thrust Cooperative Control Strategy of Multiple Propulsion Motors for Distributed Electric Propulsion Aircraft

open access: yesWorld Electric Vehicle Journal, 2021
This paper presents a thrust cooperative control strategy of multiple propulsion motors for distributed electric propulsion aircraft. The control strategy can keep the propulsion motors running synchronously when the aircraft is flying in a straight line;
Luhui Weng   +4 more
doaj   +2 more sources

Distributed propulsion.

open access: yes, 2013
En prestandaanalys utfördes på en SAAB 2000 som referensobjekt. Olika metoder för att driva flygplan på ett miljövänligare sätt utvärderades tillsammans med distributed propulsion. Efter undersökningar valdes elmotorer tillsammans med Zink-luft batterier för att driva SAAB 2000 med distributed propulsion.
Lindström, Robin, Rosvall, Tobias
openaire   +2 more sources

Recent Advances in Airframe-Propulsion Concepts with Distributed Propulsion

open access: yes, 2014
This paper discusses design and integration associated with distributed propulsion as a means of providing motive power for future aircraft concepts. The technical work reflects activities performed within a European Commission funded Framework 7 project entitled Distributed Propulsion and Ultra-high By-Pass Rotor Study at Aircraft Level, or, DisPURSAL.
Isikveren, A.T.   +8 more
core   +3 more sources

Comparative Study of the Thermal and Hydraulic Performance of Supercritical CO2 and Water in Microchannels Based on Entropy Generation

open access: yesEntropy, 2022
The excellent thermophysical properties of supercritical CO2 (sCO2) close to the pseudocritical point make it possible to replace water as the coolant of microchannels in application of a high heat flux radiator.
Yi Tu, Yu Zeng
doaj   +1 more source

Improvement of Take-Off Performance for an Electric Commuter Aircraft Due to Distributed Electric Propulsion

open access: yesAerospace, 2023
The need for environmentally responsible solutions in aircraft technology is now considered the priority for global challenges related to the limited supply of traditional fuel sources and the potential global hazards associated with emissions produced ...
Vincenzo Cusati   +3 more
doaj   +1 more source

Concept and Performance Analysis of Propulsion Units Intended for Distributed Ship Systems

open access: yesJournal of Marine Science and Engineering, 2022
Limited navigation depth, especially on inland waterways, is one of the main limiting factors that shorten the navigation period. Distributed propulsion systems represent an opportunity to increase the navigability of ships across critical sections of ...
Ladislav Illes   +6 more
doaj   +1 more source

Optimization and Analysis of Hybrid Electric System for Distributed Propulsion Tilt-Wing UAV

open access: yesIEEE Access, 2020
Hybrid electric distributed propulsion tilt-wing UAVs show unlimited application prospects due to their high propulsion efficiency and vertical take-off and landing capabilities.
Cheng He, Yuhong Jia, Dongli Ma
doaj   +1 more source

Scalability of Mach Number Effects on Noise Emitted by Side-by-Side Propellers

open access: yesApplied Sciences, 2022
This paper presents a numerical investigation of noise radiated by two side-by-side propellers, suitable for Distributed-Electric-Propulsion concepts. The focus is on the assessment of the variation of the effects of blade tip Mach number on the radiated
Caterina Poggi   +3 more
doaj   +1 more source

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