Results 101 to 110 of about 127,528 (211)

Prediction of transonic flutter for a supercritical wing by modified strip analysis and comparison with experiment [PDF]

open access: yes
Use of a supercritical airfoil can adversely affect wing flutter speeds in the transonic range. As adequate theories for three dimensional unsteady transonic flow are not yet available, the modified strip analysis was used to predict the transonic ...
Desmarais, R. N.   +3 more
core   +1 more source

Development, simulation validation, and wind tunnel testing of a digital controller system for flutter suppression [PDF]

open access: yes
Flutter suppression (FS) is one of the active control concepts being investigated by the AFW program. The design goal for FS control laws was to increase the passive flutter dynamic pressure by 30 percent.
Buttrill, Carey S.   +3 more
core   +1 more source

Wing flutter boundary prediction using an unsteady Euler aerodynamic method [PDF]

open access: yes
Modifications to an existing three-dimensional, implicit, upwind Euler/Navier-Stokes code (CFL3D Version 2.1) for the aeroelastic analysis of wings are described.
Batina, John T.   +1 more
core   +1 more source

Semi-empirical model for prediction of unsteady forces on an airfoil with application to flutter [PDF]

open access: yes
A semi-empirical model is described for predicting unsteady aerodynamic forces on arbitrary airfoils under mildly stalled and unstalled conditions. Aerodynamic forces are modeled using second order ordinary differential equations for lift and moment with
Kaza, Krishna Rao V.   +1 more
core   +1 more source

Analytical and experimental study of the effects of wing-body aerodynamic interaction on space shuttle subsonic flutter [PDF]

open access: yes
The effects on flutter of the aerodynamic interaction between the space shuttle bodies and wing, 1/80th-scale semispan models of the orbiter wing, the complete shuttle and intermediate component combinations were tested in the NASA Langley Research ...
Chipman, R. R., Rauch, F. J.
core   +1 more source

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