Results 11 to 20 of about 44,118 (256)
Весці Нацыянальнай акадэміі навук Беларусі: Серыя фізіка-тэхнічных навук, 2021 By scanning the blades of the impeller and the guide devices of the full-scale compressor of the helicopter gas turbine engine, a solid-state design model of the compressor with a tunable geometry in the height of the blades was developed.
V. A. Potapov, A. A. Sanko, M. V. Kudin
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STUDY ON SAFETY TECHNOLOGY SCHEME OF THE UNMANNED HELICOPTER [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2013 Nowadays the unmanned helicopter is widely used for its' unique strongpoint, however, the high failure rate of unmanned helicopter seriously limits its further application and development.
Z. Lin +4 more
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Machines, 2023 In the short/vertical take-off and landing aircraft propulsion system, the vertical take-off/landing and rapid flight are switched through the engagement and disconnection of the dry friction clutch. The smooth and rapid connection of the friction clutch
Chu Zhu +3 more
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Energy and Exergy Analysis on a Waste Heat Recovery Module for Helicopters
IEEE Access, 2021 The exhaust of turboshaft engines contains a big amount of waste heat but does not provide propulsion power to the helicopter. Reusing the heat can increase fuel efficiency and reduce carbon emissions of the engine.
Yuxue Ge, Yuhao Wei, Qian Zhao, Yang Pei
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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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An Advanced Helicopter Engine Control System [PDF]
Aircraft Engineering and Aerospace Technology, 1982 The Amalgamation of Functions The requirements of the first engine controllers were primarily to satisfy the needs of the engine and, almost as an afterthought, to consider interface with the aircraft and the pilot. The latter resulted in the overwhelming plethora of “essential” ground test‐sets and cockpit instruments that we see today.
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Maneuverability assessment of a compound helicopter configuration [PDF]
, 2016 The compound helicopter design could potentially satisfy the new emerging requirements placed on the next generation of rotorcraft. The main benefit of the compound helicopter is its ability to reach speeds that significantly surpass those of the ...
Ferguson, Kevin, Thomson, Douglas
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Impact of dust erosion on the reduction of axial compressor efficiency of a turboshaft engine and on the stability of its operation [PDF]
MATEC Web of Conferences, 2022 This paper aimed to solve the impact of operational abrasive wear on the rotor blades of the axial compressor of the turboshaft engine on the decrease in its total compression efficiency ηCt and its transition into unstable work mode (surge).
Hocko Marián, Al-Rabeei Samer
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Study of super/turbocharger system for helicopter diesel engine
Diagnostyka, 2021 The article demonstrates a rational scheme of the supercharging system in a helicopter diesel engine with a power of 100 kW, regardless of the flight altitude, and proposes a method for assessing the power losses for a diesel engine depending on the ...
Andriy Prokhorenko +4 more
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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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