Results 41 to 50 of about 29,232 (135)
Feasibility of Penetrant Testing on Surface Axial-Radial Cracks of GH4169 Super Alloy Turbine Disk
Journal of Aeronautical Materials, 2016 The post emulsifiable and water-washable fluorescent penetrant testing were carried out with ZL-27A and ZL67 respectively. Ultrasonic cleaning by detergent were used for 30 minutes before penetrant. The parts were immersed and drained for 60 minutes. The
QIAO Haiyan +3 more
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Model of the turboprop engine reduction gear tooth harmonic spectral component
Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2023 The width of spectral components in rotary machines is determined by the frequency modulation of the carrier from the rotor speed deviation in the stationary operation mode.
A. E. Sundukov, E. V. Shakhmatov
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Power plants of the first aircraft
Вестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2023 The article is dedicated to the 140th anniversary of the construction of the first Russian aircraft designed by Alexander Fedorovich Mozhaisky. The main attention is paid to a comparative assessment of the parameters of the power plants of the Mozhaisky ...
A. S. Drygin
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Immediate impact of the COVID-19 pandemic on CTSA TL1 and KL2 training and career development
Journal of Clinical and Translational Science, 2020 Clinical and Translational Science Award (CTSA) TL1 trainees and KL2 scholars were surveyed to determine the immediate impact of the COVID-19 pandemic on training and career development. The most negative impact was lack of access to research facilities,
Wayne T. McCormack +13 more
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Aerospace, 2022 This paper researches the parametric optimization of a two-stage transonic compressor having a large air bypass at partial rotating speed according to flow analysis for a turbine-based combined cycle engine (TBCC).
Hengtao Shi
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Quantifying the Resilience Performance of Airport Flight Operation to Severe Weather
Aerospace, 2022 The increased number of severe weather events caused by global warming in recent years is a major turbulence factor for airport operation and results in more irregular flights.
Xinglong Wang, Ziyan Chen, Kenan Li
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The Stability Analysis of a Tether for a Segmented Space Elevator
Aerospace, 2022 The space elevator system is a space tether system used to solve low-cost space transportation. Its high efficiency, large load and other characteristics have broad application prospects in the aerospace field. The stability analysis is the foundation of
Shihao Luo +4 more
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ELEMENTARY LINKS OF LINEAR SPATIAL RHEOLOGICAL MODEL OF ASPHALT-CONCRETE [PDF]
Avtomobilʹnyj Transport (Harʹkov), 2010 The article deals with three-demensional mathematical models of the deformation mode of Hook, Newton, Maxwell and Kalvin elements.
V. Bogomolov, V. Zhdaniuk, S. Bogomolov
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Aerospace, 2022 This work addresses the problem of vertical wind profile online estimation at a given location. Specifically, the north and east components of the wind are continuously estimated as functions of time and altitude at two waypoints used for landing on the ...
Marius Marinescu +3 more
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Concurrent Trajectory Optimization and Aircraft Design for the Air Cargo Challenge Competition
Aerospace, 2022 A coupled aerostructural aircraft design and trajectory optimization framework is developed for the Air Cargo Challenge competition to maximize the expected score based on cargo carried, altitude achieved and distance traveled.
Nuno M. B. Matos, Andre C. Marta
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