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NASA Research in Aircraft Propulsion [PDF]

open access: yesVolume 5: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; Process Industries; Technology Resources; General, 1982
This report presents a broad overview of the scope of research presently being supported by NASA in aircraft propulsion. Aircraft systems work is performed to identify the requirements for the propulsion system that enhance the mission capabilities of the aircraft.
Beheim, M. A.
openaire   +3 more sources

Preliminary Sizing Method for Hybrid-Electric Distributed-Propulsion Aircraft

open access: yesJournal of Aircraft, 2019
The use of hybrid-electric propulsion (HEP) entails several potential benefits such as the distribution of power along the airframe, which enables synergistic configurations with improved aerodynamic and propulsive efficiency.
Reynard De Vries, Roelof Voß
exaly   +2 more sources

Electric Aircraft Propulsion [PDF]

open access: yesJournal of KONBiN, 2021
Abstract This paper presents the state of the art in electric aircraft propulsion systems. The necessary reduction of greenhouse gas emissions on the global scale forces aviation engineers to search for ‘green’ solutions. Electric aircraft propulsion is a potential and relatively intuitive choice for a reduction of emissions in flight ...
Adam Kozakiewicz, Tomasz Grzegorczyk
openaire   +2 more sources

Numerical Simulation of Powering Turbofan Propulsion Aircraft with Electricity [PDF]

open access: yesEngineering and Technology Journal, 2023
The gas turbine-based propulsion systems were responsible for the emission of pollutants that damage the ecosphere. Commercial aviation represented a large portion of carbon emissions within the aviation industry, so this study focused on novel aircraft ...
Thomas Onah   +2 more
doaj   +1 more source

Conceptual Design and Control Schedule Optimization for Parallel Hybrid Propulsion System of Regional Turboprop Aircraft [PDF]

open access: yesE3S Web of Conferences, 2023
Current environmental policies for the aviation industry motivate the use of cleaner propulsion systems to reduce its CO2 and noise footprint in the coming years.
Mikhailov Alexey   +5 more
doaj   +1 more source

Application of Neural Networks and Transfer Learning to Turbomachinery Heat Transfer

open access: yesAerospace, 2022
Model-based predictive maintenance using high-frequency in-flight data requires digital twins that can model the dynamics of their physical twin with high precision. The models of the twins need to be fast and dynamically updatable.
Markus Baumann   +2 more
doaj   +1 more source

One Lever Control for Variable Pitch Turboprop Aircraft [PDF]

open access: yesE3S Web of Conferences, 2020
The present work focuses on the control strategy concerning the propulsion system of a variable pitch turboprop aircraft. Extremely common solution for the management of the propulsion system of existing variable pitch turboprop aircraft considers a two ...
Gaudio Giovanni, Dambrosio Lorenzo
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 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   +1 more source

Changing patterns of the optimal composition and parameters of propulsions with ramjet ducts from the supersonic cruising flight speed

open access: yesАвіаційно-космічна техніка та технологія, 2022
There are two aircraft concepts for transoceanic flights at supersonic speed. The first is the aircraft with moderate supersonic cruising speed M = 1.7...2.2, and the second is the aircraft with cruising speed M ≥ 3.
Oleh Kislov, Mykhailo Shevchenko
doaj   +1 more source

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