Results 81 to 90 of about 13,380 (209)

A study of aeroelastic and structural dynamic effects in multi-rotor systems with application to hybrid heavy lift vehicles [PDF]

open access: yes
An aeroelastic model suitable for the study of aeroelastic and structural dynamic effects in multirotor vehicles simulating a hybrid heavy lift vehicle was developed and applied to the study of a number of diverse problems. The analytical model developed
Friedmann, P. P.
core   +1 more source

Application of the Finite Element Method to Rotary Wing Aeroelasticity [PDF]

open access: yes
A finite element method for the spatial discretization of the dynamic equations of equilibrium governing rotary-wing aeroelastic problems is presented. Formulation of the finite element equations is based on weighted Galerkin residuals.
Friedmann, P. P., Straub, F. K.
core   +1 more source

Effect of Intake Acoustic Reflection on Blade Vibration Characteristics

open access: yesAerospace
Recent studies in turbomachinery have shown that the phase of acoustic wave reflection within an intake can have either positive or negative effects on the aeroelastic stability of fan rotor blades. However, the typical flow structures, such as the shock
Hui Yang, Hui Liang, Yun Zheng
doaj   +1 more source

Viscous effects on transonic airfoil stability and response [PDF]

open access: yes
Viscous effects on transonic airfoil stability and response are investigated using an integral boundary layer model coupled to the inviscid XTRAN2L transonic small disturbance code. Unsteady transonic airloads required for stability analyses are computed
Batina, J. T., Berry, H. M., Yang, T. Y.
core   +1 more source

The effects of aeroelastic deformation on the unaugmented stopped-rotor dynamics of an X-Wing aircraft [PDF]

open access: yes
A new design concept in the development of VTOL aircraft with high forward flight speed capability is that of the X-Wing, a stiff, bearingless helicopter rotor system which can be stopped in flight and the blades used as two forward-swept and two aft ...
Gilbert, Michael G., Silva, Walter A.
core   +1 more source

Experiences with the design and implementation of flutter suppression systems [PDF]

open access: yes, 1984
Research efforts aim at flutter suppression are discussed. The application of active controls technology to reduce the aeroelastic response of aircraft structures is discussed.
Abel, I., Newsom, J. R.
core   +1 more source

High-Fidelity Aeroelastic Analysis of a Wind Turbine Using a Nonlinear Frequency-Domain Solution Method

open access: yesEnergies
This paper investigates the aeroelastic behaviour of a full wind turbine model with realistic blade vibration amplitude (9% span) using a nonlinear frequency-domain solution method.
Shine Win Naung   +2 more
doaj   +1 more source

Advances in understanding autogyro flight dynamics [PDF]

open access: yes, 2008
A comprehensive flight dynamics study of the autogyro is presented in this paper. A state of the art generic simulation of the vehicle type was developed and validated against flight data.
Houston, S., Thomson, D.G.
core  

On Dynamic Stability of a Nonlinear Aeroelastic System

open access: yesИзвестия Иркутского государственного университета: Серия "Математика", 2018
A nonlinear mathematical model of a device related to vibratory technology is considered. The device is intended for the intensification of technological processes, for example, the mixing process. The action of such devices is based on the vibrations of
P. A. Velmisov, A. V. Ankilov
doaj   +1 more source

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