Results 31 to 40 of about 875,462 (392)
Numerical Simulations on the PSP Rotor Using HMB3 [PDF]
, 2018 This work presents CFD analyses of the isolated Pressure Sensitive Paint (PSP) model rotor blade in hover and forward flight using the structured multi-block CFD solver of Glasgow University.
Barakos, G.N., Jimenez-Garcia, A.
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Advanced Materials and Technologies for Compressor Blades of Small Turbofan Engines
Aerospace, 2020 Manufacturing costs, along with operational performance, are among the major factors determining the selection of the propulsion system for unmanned aerial vehicles (UAVs), especially for aerial targets and cruise missiles.
Dmytro Pavlenko +2 more
doaj +1 more source
Implementation of the blade element momentum model on a polar grid and its aeroelastic load impact
Wind Energy Science, 2019 . We show that the upscaling of wind turbines from rotor diameters of 15–20 m to presently large rotors of 150–200 m has changed the requirements for the aerodynamic blade element momentum (BEM) models in the aeroelastic codes.
H. Madsen +4 more
semanticscholar +1 more source
Response of Bladed Disks With Mistuned Blade-Disk Interfaces [PDF]
Volume 6: Structures and Dynamics, Parts A and B, 2009 This paper focuses on the determination of the effects on the bladed disk forced response of small variations (mistuning) in the blade-disk interface properties as may result from blade seating. A blade-interface-disk mean model is first developed that relies on both the Craig-Bampton approach and a local modeling of the interface. Then, both model and
Avalos, J. +2 more
openaire +3 more sources
Nihon Kikai Gakkai ronbunshu, 2023 To develop turbomachinery blades with high reliability, it is indispensable to verify the natural frequency, damping, resonant stress, etc. under operating condition, and utilize these data in the mechanical design of a new blade.
Yasutomo KANEKO +2 more
doaj +1 more source
Finds of pre-Scythian bimetallic daggers in the vicinity of Stavropol and in the adjacent areas
Материалы по археологии и истории античного и средневекового Причерноморья, 2021 The article is devoted to the description of four bimetallic daggers of the pre-Scythian time, discovered in the vicinity of Stavropol and in the adjacent regions.
Prokopenko, Yu.A.
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Balancing and blade-shaping of a single-blade impeller [PDF]
Mechanics & Industry, 2019 Single-blade centrifugal pumps with a screw-shaped blade are widely used to pump slurry water containing solids and fibrous matters. These hydraulic machines should be frequently used, because of their suitable hydraulic and mechanical properties, in many industrial areas. There cannot be applied a conventional method to design a single-blade impeller,
Pavol Slovák +4 more
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Micromachines, 2021 This paper presents the effect of blade type and feeding force during resin-bonded dentin specimen preparation on the microtensile bond strength (μTBS) test. Forty resin-bonded flat middle dentin specimens were divided into four groups.
Apinya Limvisitsakul +2 more
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Are inclined screw blades for vertical grain augers advantageous? [PDF]
, 1978 Due to modern technology, screw blades are often manufactured by rolling them out of one single strip of steel. When simultaneously some blade inclination is applied, less residual stresses and/or larger possible ratios between outer and shaft diameter ...
Rademacher, F.J.C.
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Influence of blade-to-blade dissimilarity on alleviation of helicopter blade-vortex interactions
Mathematical and Computer Modelling, 2001 This paper numerically examines possible alleviation of parallel blade-vortex interaction (BVI), experienced by helicopters in low-speed descent, through the introduction of blade-to-blade dissimilarity. A four-bladed rotor with two sets of opposite blades is considered, and the radius of one set is reduced to 80% of the baseline radius.
Lionel Tauszig, Farhan Gandhi
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