Results 21 to 30 of about 1,536 (172)
Forming of turboshaft engine mathematical model
Авіаційно-космічна техніка та технологія, 2023 The subject of the study is the process of forming a mathematical model (MM) of a turboshaft gas turbine engine and a twin-engine helicopter power plant, which provides the determination of parameters of the working process in steady and transient ...
Sergiy Yepifanov, Oleksii Bondarenko
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DIAGNOSTIC MODEL OF HELICOPTER TURBOSHAFT ENGINE
Izvestiya of Samara Scientific Center of the Russian Academy of Sciences, 2023 The article presents a qualitative assessment of the impact on the engine components characteristics of the malfunction occurrence in the flow part of the aviation gas turbine engines, which lead to changes in its geometry. Using the example of a compressor, it is shown that when defects appear in it, two of its characteristics are deformed: efficiency
V.P. Kazhaev, D.Y. Kiselev, Y.V. Kiselev
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Comprehensive Performance Analysis for the Rotating Detonation‐Based Turboshaft Engine
International Journal of Aerospace Engineering, Volume 2020, Issue 1, 2020., 2020 The potential advantages of rotating detonation combustion are gradually approved, and it is becoming a stable and controllable energy conversion way adopted to the propulsion devices or ground‐engines. This study focuses on the rotating detonation‐based turboshaft engine, and the architecture is presented for this form of engine with compatibility ...
Zifei Ji +5 more
wiley +1 more source
Variable-speed rotor helicopters: Performance comparison between continuously variable and fixed-ratio transmissions [PDF]
, 2016 Variable speed rotor studies represent a promising research field for rotorcraft performance improvement and fuel consumption reduction. The problems related to employing a main rotor variable speed are numerous and require an interdisciplinary approach.
Benini, Ernesto +1 more
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An integrated methodology to assess the operational and environmental performance of a conceptual regenerative helicopter [PDF]
, 2015 This paper aims to present an integrated multidisciplinary simulation framework, deployed for the comprehensive assessment of combined helicopter powerplant systems at mission level. Analytical evaluations of existing and conceptual regenerative engine
Ali, Fakhre +2 more
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Examination of Applicability of Engine Condition Trend Monitoring to Bell 2068 Ill Helicopter
Promet (Zagreb), 2002 Because of the advantages of turboshaft engine conditiontrend monitoring, it is in the interest of the Croatian Air Forceto examine its applicability in Bell 206B Ill helicopter maintenancesystem.The paper deals with the basic of turboshaft engine ...
Davor Mistrić +2 more
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Journal of Low Frequency Noise, Vibration and Active Control, 2020 In order to realize the rapid response control for turboshaft engine during the process of variable rotor speed, the linear quadratic Gaussian with loop transfer recovery (LQG/LTR) control method for turboshaft engine based on torsional vibration ...
Yong Wang +3 more
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Off-Design Analysis Method for Compressor Fouling Fault Diagnosis of Helicopter Turboshaft Engine
Modelling, 2023 Fouling, caused by the adhesion of fine materials to the blades of the compressor’s last stages, changes the airfoil’s shape and function and the inlet flow angle on the blades.
Farshid Bazmi, Afshin Rahimi
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Measurement of black carbon emissions from multiple engine and source types using laser-induced incandescence: sensitivity to laser fluence [PDF]
Atmospheric Measurement Techniques, 2022 A new regulatory standard for non-volatile particulate matter (nvPM) mass-based emissions from aircraft engines has been adopted by the International Civil Aviation Organisation.
R. Yuan +6 more
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Development of On-line Performance Diagnostic Program of a Helicopter Turboshaft Engine [PDF]
International Journal of Aeronautical and Space Sciences, 2009 Gas turbine performance diagnostics is a method for detecting, isolating and quantifying faults in gas turbine gas path components. On-line precise fault diagnosis can promote greatly reliability and availability of gas turbine in real time operation. This work proposes a GUI-type on-line diagnostic program using SIMULINK and Fuzzy-Neuro algorithms for
Chang-Duk Kong +3 more
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