Dynamic structural aeroelastic stability testing of the XV-15 tilt rotor research aircraft [PDF]
For the past 20 years, a significant effort has been made to understand and predict the structural aeroelastic stability characteristics of the tilt rotor concept.
Schroers, L. G.
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Wind Turbine Aeroelastic Modeling: Basics and Cutting Edge Trends
International Journal of Aerospace Engineering, 2017 The interaction of fluid flow and the structure dynamic of the system is a vital subject for machines operating under their coupling. It is not different for wind turbine either, especially as the coupling enhanced for multi-MW turbine with larger and ...
Mesfin Belayneh Ageze +2 more
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Optimum design of high speed prop rotors including the coupling of performance, aeroelastic stability and structures [PDF]
An optimization procedure is developed for the design of high speed prop-rotors to be used in civil tiltrotor applications. The goal is to couple aerodynamic performance, aeroelastic stability, and structural design requirements inside a closed-loop ...
Chattopadhyay, Aditi +2 more
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Eigenspace design techniques for active flutter suppression [PDF]
, 1984 The application of eigenspace design techniques to an active flutter suppression system for the DAST ARW-2 research drone is examined. Eigenspace design techniques allow the control system designer to determine feedback gains which place controllable ...
Garrard, W. L., Liebst, B. S.
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Geometrical Nonlinear Aeroelastic Stability Analysis of a Composite High-Aspect-Ratio Wing
Shock and Vibration, 2008 A composite high-aspect-ratio wing of a high-altitude long-endurance (HALE) aircraft was modeled with FEM by MSC/NASTRAN, and the nonlinear static equilibrium state is calculated under design load with follower force effect, but without load ...
Chang Chuan Xie +2 more
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Analysis of classical flutter in steam turbine blades using reduced order aeroelastic model
MATEC Web of Conferences, 2018 In the present paper classical flutter phenomena in LP steam turbine rotor is studied . A reduced order aeroelastic model (ROAM) with acceptable accuracy and fast execution is developed for this purpose.
Prasad Chandra Shekhar, Pešek Luděk
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Static aeroelasticity of a composite oblique wing in transonic flows [PDF]
One aircraft configuration that shows great promise in achieving high performance is that of an asymmetrically swept wing. When compared to conventional swept wings, these advantages include higher lift to drag ratios and reduced takeoff and landing ...
Bohlmann, Jonathan D.
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A Quasi-Steady Flexible Launch Vehicle Stability Analysis Using Steady CFD with Unsteady Aerodynamic Enhancement [PDF]
, 2011 Launch vehicles frequently experience a reduced stability margin through the transonic Mach number range. This reduced stability margin is caused by an undamping of the aerodynamics in one of the lower frequency flexible or rigid body modes.
Bartels, Robert E.
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Aeroelastic stability analyses of two counter rotating propfan designs for a cruise missile model [PDF]
Aeroelastic stability analyses were performed to insure structural integrity of two counterrotating propfan blade designs for a NAVY/Air Force/NASA cruise missile model wind tunnel test.
Lucero, John M. +3 more
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Aeroelastic instability stoppers for wind tunnel models [PDF]
, 1981 A mechanism for diverting the flow in a wind tunnel from the wing of a tested model is described. The wing is mounted on the wall of a tunnel. A diverter plate is pivotally mounted on the tunnel wall ahead of the model. An actuator fixed to the tunnel is
Doggett, R. V., Jr., Ricketts, R. H.
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