Results 11 to 20 of about 22,298 (311)

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   +1 more source

Design, Fabrication and Test of a High- Temperature Superconducting Linear Synchronous Motor Mover Magnet Prototype for High-Speed Maglev

open access: yesIEEE Access, 2022
High-temperature superconducting linear synchronous motors (HTS-LSMs) have many advantages, such as high thrust density, high efficiency, large electromagnetic gap, and liquid-helium-free refrigeration, because of the high operating temperature and good ...
Daoyu Hu, Yi Zhang, Kai Mao
doaj   +1 more source

Development of a Turbo Electric Distribution System for Remotely Piloted Aircraft Systems [PDF]

open access: yesJournal of Aerospace Technology and Management, 2021
Turboelectric distributed propulsion systems are paving the way for more electric aircraft systems (TeDP). This type of system provides a solution for some of the drawbacks of current low-energy-density batteries, which limit the ability of long ...
Mithun Eqbal   +3 more
doaj   +3 more sources

A Multiphase Traction/Fast-Battery-Charger Drive for Electric or Plug-in Hybrid Vehicles [PDF]

open access: yes, 2010
For Electric Vehicles (EV), the charger is one of the main technical and economical weaknesses. This paper focuses on an original electric drive [1]-[3] dedicated to the vehicle traction and configurable as a battery charger without need of additional ...
BOUCHEZ, Boris   +11 more
core   +1 more source

Sizing and Mission Profile Analysis of the Hybrid-Electric Propulsion System for Retrofitting a Fixed Wing VTOL Aircraft

open access: yesInternational Journal of Aerospace Engineering, 2022
Hybrid-electric technology can be expected to improve the performance of fixed wing vertical takeoff and landing (VTOL) aircraft. In this paper, we demonstrated a method of retrofitting a single-energy propulsion system prototype with a hybrid-electric ...
Jianan Zong   +4 more
doaj   +1 more source

Key Technologies for the Application of the Electric Propulsion System on the GEO Satellite Platform

open access: yesMeasurement + Control, 2008
Applying the electric propulsion system on GEO satellite in the future is an inevitable trend in China. For this purpose, a lot of problems should be solved not only thruster itself but also the whole system.
Bian Bingxiu, Wei Yanming, Li Yong
doaj   +1 more source

MATHEMATICAL MODELING OF ELECTRIC HEATING ENGINE ON START-UP

open access: yesАвіаційно-космічна техніка та технологія, 2019
The subject of research in the article is the process of accelerating the working fluid in an electric heating thruster, which is part of the onboard propulsion system used in space tug.
Андрей Владимирович Погудин
doaj   +1 more source

Time-optimal trajectories to circumsolar space using solar electric propulsion [PDF]

open access: yes, 2013
The aim of this paper is to explore the capabilities of a solar electric propelled spacecraft on a mission towards circumsolar space. Using an indirect approach, the paper investigates minimum time of transfer (direct) trajectories from an initial ...
Vasile, Massimiliano   +5 more
core   +1 more source

Ion Electric Propulsion System Electric Breakdown Problems: Causes, Impacts and Protection Strategies

open access: yesIEEE Access, 2023
Ion electric propulsion systems have been widely used in satellite station keeping, attitude control, and orbit transfer due to their advantages of high specific impulse, good flexibility, and high reliability.
Zheng Peng   +5 more
doaj   +1 more source

Artificial three-body equilibria for hybrid low-thrust propulsion [PDF]

open access: yes, 2008
This paper proposes a new concept of creating artificial equilibrium points in the circular restricted three body problem, where the third body uses a hybrid of solar sail and solar electric propulsion.
Baig, Shahid, McInnes, Colin R.
core   +1 more source

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