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Examining the stability derivatives of a compound helicopter [PDF]
, 2016 Some helicopter manufacturers are exploring the compound helicopter design as it could potentially satisfy the new emerging requirements placed on the next generation of rotorcraft.
Ferguson, Kevin, Thomson, Douglas
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Efficient preliminary floating offshore wind turbine design and testing methodologies and application to a concrete spar design [PDF]
, 2015 The current key challenge in the floating offshore wind turbine industry and research is on designing economic floating systems that can compete with fixed-bottom offshore turbines in terms of levelized cost of energy. The preliminary platform design, as
Campos Hortigüela, Alexis +4 more
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Aerodynamic Damping Characteristics of a Transonic Turbine Cascade [PDF]
Volume 4: Manufacturing Materials and Metallurgy; Ceramics; Structures and Dynamics; Controls, Diagnostics and Instrumentation; Education; IGTI Scholar Award; General, 1999 The unsteady aerodynamic characteristics of oscillating thin turbine blades were studied both experimentally and numerically to obtain the comprehensive knowledge on the aerodynamic damping of the blades operating in transonic flows. The experiment was carried out in a linear cascade tunnel by use of the influence coefficient method.
Mizuho Aotsuka +2 more
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Numerical analysis of aerodynamic damping for a centrifugal impeller
Engineering Applications of Computational Fluid Mechanics, 2018 In order to realize the numerical analysis of aerodynamic damping for the centrifugal impellers, a numerical code integrating the flow-structure data transfer, grid deformation and flow simulation under the moving grid system is first developed.
Jun Xiao, Yuanyang Zhao, Qichao Yang
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Estimation of three-dimensional aerodynamic damping using CFD [PDF]
The Aeronautical Journal, 2019 AbstractAeroelastic phenomena of stall flutter are the result of the negative aerodynamic damping associated with separated flow. From this basis, an investigation has been conducted to estimate the aerodynamic damping from a time-marching aeroelastic computation.
Higgins, R.J., Barakos, G.N., Jinks, E.
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Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2013 Herringbone grooved aerodynamic journal bearings have better stability characteristics than plane aerodynamic journal bearings. In addition, the use of flexibly supported bearings is one of the efficient way to improve the bearing stability. Therefore,
Jun TOMIOKA, Norifumi MIYANAGA
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Aerodynamic Study of a NACA 64418 Rectangular Wing under Forced Pitching Motions
Fluids, 2021 The aerodynamic behavior of a pitching NACA 64418 rectangular wing was experimentally studied in a subsonic wind tunnel. The wing had a chord c = 0.5 m, a span which covered the distance between the two parallel tunnel walls and an axis of rotation 0.35 ...
Dimitris Gkiolas, Dimitrios Mathioulakis
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A numerical investigation into the aerodynamic characteristics and aeroelastic stability of a footbridge [PDF]
, 2009 The results of a numerical investigation into the aerodynamic characteristics and aeroelastic stability of a proposed footbridge across a highway in the north of England are presented.
Taylor, I.J., Vezza, M.
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Insight into Damping Sources in Turbines
Fatigue of Aircraft Structures, 2023 Blade vibrations in aircraft engines are a significant challenge that must be overcome during the design and development of modern turbine engines.
Moneta Grzegorz
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Numerical investigation of the effects of pedestrian barriers on aeroelastic stability of a proposed footbridge [PDF]
, 2004 A numerical investigation into the aerodynamic characteristics and aeroelastic stability of a proposed footbridge across a motorway in the north of England has been undertaken.
Salisbury, I, Taylor, I. J., Vezza, M.
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