Results 121 to 130 of about 1,393 (153)
Some of the next articles are maybe not open access.
Calculation of Air Velocity on the Helicopter Turboshaft Engines Inlet
SAE International Journal of Engines, 2021<div>The turboshaft engine performance is closely related to the helicopter’s design, and because of its location beneath the helicopter’s main rotor, it has unique features that distinguish it from other families of gas turbine engines.
Farshid Bazmi, Afshin Rahimi
openaire +1 more source
Exergetic Investigation of a Turboshaft Helicopter Engine Related to Engine Power
SAE International Journal of Aerospace, 2020<div>Turboshaft engines, one of the classifications of the helicopters, combine the core engine and fan and consume fossil fuels. Emissions, produced by the fossil fuels, cause global warming and environmental pollution, such as ecological, human health. To improve helicopter capability, energy is the first point of improvement.
Elif Koruyucu +2 more
openaire +1 more source
Design and CFD analysis of a regenerator for a turboshaft helicopter engine
Aerospace Science and Technology, 2008A possible provision of a regenerator is examined with an attainable effectiveness, least pressure drop and small weight for a modified veteran turboshaft helicopter engine. From the thermal analysis it is known that considerable amount of heat energy exists in the turbine exhaust gas.
Vijaya Kumar Cheeda +2 more
openaire +1 more source
Fuzzy Logic Application in Helicopter Turboshaft Engines Automatic Control Systems
2024 IEEE 17th International Conference on Advanced Trends in Radioelectronics, Telecommunications and Computer Engineering (TCSET)Serhii Vladov +2 more
exaly +2 more sources
The Control of Turboshaft Engines in Helicopters
SAE Technical Paper Series, 1965<div class="htmlview paragraph">Written from the point of view of the helicopter constructor, this paper attempts a comprehensive review of the experience accumulated by airframe, engine, and control systems designers in the United Kingdom in the course of developing a wide variety of first generation turbine engined helicopters.</div> < ...
openaire +1 more source
Three-Dimensional Sound Directivity around a Helicopter Turboshaft Engine
Journal of the American Helicopter Society, 2012Turboshaft engines can be the main source of noise due to a helicopter at takeoff. Some new silencing designs of the inlets and of the ejector were tested on a Turbomeca Arrius 2B2 engine in an open-air static facility. Intake and exhaust are not axisymmetric, and conventional directivity patterns of sound field on a horizontal arc of circle are ...
Helene Gounet, Serge Lewy
openaire +1 more source
Some Aspects of Turboshaft Engine Installations in Multi-engined Helicopters
The Journal of the Royal Aeronautical Society, 1964In projecting future turboshaft engines for helicopter appUcations the engine designer is faced with the problem of selecting the size of engine to meet the likely size, configuration, performance and economic requirements of future helicopters. It is also desirable to meet as many different helicopter applications as possible with the same basic ...
openaire +1 more source
Performance of a Turboshaft Engine for Helicopter Applications Operating at Variable Shaft Speed
ASME 2012 Gas Turbine India Conference, 2012An off-design steady state model of a generic turboshaft engine has been implemented to assess the influence of variable free power turbine (FPT) rotational speed on overall engine performance, with particular emphasis on helicopter applications. To this purpose, three off-design flight conditions were simulated and engine performance obtained with ...
MISTE', GIANLUIGI ALBERTO +1 more
openaire +2 more sources
Simulation of the Transient Response of a Helicopter Turboshaft Engine to Hot-Gas Ingestion
Volume 2: Controls, Diagnostics and Instrumentation; Cycle Innovations; Electric Power, 2008Hot-Gas Ingestion (HGI) to the engines can potentially occur when a rotorcraft or a VTOL/STOVL fixed-wing aircraft is operating in close proximity to the ground. Especially for helicopters, due to the rotor downwash hot exhaust gases get recirculated into the engine inlet. Similar conditions may also occur due to the ingestion of hot exhaust gases from
Gu¨lru Koc¸er +2 more
openaire +1 more source
Modified Neuro-Fuzzy Failure Classifier of Helicopters Turboshaft Engines
2023 IEEE 18th International Conference on Computer Science and Information Technologies (CSIT), 2023Serhii Vladov +5 more
openaire +1 more source