Baseline Assumptions and Future Research Areas for Urban Air Mobility Vehicles [PDF]
NASA is developing Urban Air Mobility (UAM) concepts to (1) create first-generation reference vehicles that can be used for technology, system, and market studies, and (2) hypothesize second-generation UAM aircraft to determine high-payoff technology ...
Antcliff, Kevin +3 more
core +1 more source
Helicopter turboshaft engine ground performance with alternative fuels
, 2020 In recent years, extensive studies on alternative fuels have been conducted to find environmentally friendly, economically feasible fuels due to finite petroleum sources, environmental and economical reasons. In this thesis, effects of alternative fuels on engine performance and exhaust emission are studied experimentally.
openaire +1 more source
Rotor systems research aircraft predesign study. Volume 4: Preliminary draft detail specification [PDF]
The RSRA requirements are presented in a detail specification format. Coverage of the requirements includes the following headings: (1) aircraft characteristics, (2) general features of design and construction, (3) aerodynamics, (4) structural design ...
Linden, A. W., Miller, A. N.
core +1 more source
Mathematical modeling and control of a tilt-rotor aircraft
, 2015 This paper presents a novel model of large-size tilt-rotor aircraft, which can operate as a helicopter as well as being capable of transition to fixed-wing flight.
Cai, Lilong, Wang, Xinhua
core +2 more sources
An update of engine system research at the Army Propulsion Directorate [PDF]
The Small Turboshaft Engine Research (STER) program provides a vehicle for evaluating the application of emerging technologies to Army turboshaft engine systems and to investigate related phenomena.
Bobula, George A.
core +1 more source
Study on nonlinear dynamics characteristics of dual speed dual clutch transmission system based on bond graph. [PDF]
Heliyon, 2023 Wu J, Yan H, Liu S, Ni.
europepmc +1 more source
The design of a turboshaft speed governor using modern control techniques [PDF]
The objectives of this program were: to verify the model of off schedule compressor variable geometry in the T700 turboshaft engine nonlinear model; to evaluate the use of the pseudo-random binary noise (PRBN) technique for obtaining engine frequency ...
Delosreyes, G., Gouchoe, D. R.
core +1 more source
Threats from and Countermeasures for Unmanned Aerial and Underwater Vehicles. [PDF]
Sensors (Basel), 2022 Khawaja W +5 more
europepmc +1 more source
Preliminary study of advanced turboprop and turboshaft engines for light aircraft [PDF]
The effects of engine configuration, advanced component technology, compressor pressure ratio and turbine rotor-inlet temperature on such figures of merit as vehicle gross weight, mission fuel, aircraft acquisition cost, operating, cost and life cycle ...
Eisenberg, J. D. +2 more
core +1 more source
Радіоелектронні і комп'ютерні системиThe subject of this paper is to develop a method for synthesizing stable neural network controllers with optimization of transient process parameters. The goal is to develop a method for synthesizing a neural network controller for control systems that ...
Serhii Vladov +5 more
doaj +1 more source