Results 71 to 80 of about 126,211 (195)
Comparison of analytical and wind-tunnel results for flutter and gust response of a transport wing with active controls [PDF]
Two flutter suppression control laws wre designed and tested on a low speed aeroelastic model of a DC-10 derivative wing. Both control laws demontrated increases in flutter speed in excess of 25 percent above the passive wing flutter speed.
Abel, I., Newsom, J. R., Perry, B., III
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Further studies of stall flutter and nonlinear divergence of two-dimensional wings [PDF]
An experimental investigation is made of the purely torsional stall flutter of a two-dimensional wing pivoted about the midchord, and also of the bending-torsion stall flutter of a two-dimensional wing pivoted about the quarterchord.
Chopra, I., Dugundji, J.
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Numerical and experimental study on flutter characteristics of a wing with drag rudder
Kongqi donglixue xuebaoThe drag rudder serves as an unconventional control surface specifically designed for flying wing aircraft. Positioned near the wingtips, the drag rudder splits to generate drag force and yawing moments, which exhibits significant nonlinear ...
Yongchang LI +6 more
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Application of a flight test and data analysis technique to flutter of a drone aircraft [PDF]
Modal identification results presented were obtained from recent flight flutter tests of a drone vehicle with a research wing (DAST ARW-1 for Drones for Aerodynamic and Structural Testing, Aeroelastic Research Wing-1).
Bennett, R. M.
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Aeroelastic Analysis of a Tailless Flying Wing with a Rotating Wingtip
AerospaceThis paper presents a preliminary investigation into the aeroelastic behavior of a tailless flying wing equipped with a rotating wingtip. Based on the configuration of Innovative Control Effectors (ICE) aircraft, an aeroelastic model of the tailless ...
Weiji Wang +6 more
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Preliminary study of effects of winglets on wing flutter [PDF]
Some experimental flutter results are presented over a Mach number range from about 0.70 to 0.95 for a simple, swept, tapered, flat-plate wing model having a planform representative of subsonic transport airplanes and for the same wing model equipped ...
Doggett, R. V., Jr., Farmer, M. G.
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AerospaceWind tunnel testing is a crucial method for studying aircraft flutter. Using heavy gas as the wind tunnel medium can mitigate the escalating issue of test models being overweight as advanced aircraft develop.
Zhe Hu +5 more
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Supersonic Stall Flutter of High Speed Fans [PDF]
An analytical model is developed for predicting the onset of supersonic stall bending flutter in axial flow compressors. The analysis is based on a modified two dimensional, compressible, unsteady actuator disk theory.
Adamczyk, J. J., Jutras, R., Stevens, W.
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Experimental and analytical transonic flutter characteristics of a geared-elevator configuration [PDF]
The flutter model represented the aft fuselage and empennage of a proposed supersonic transport airplane and had an all movable horizontal tail with a geared elevator. It was tested mounted from a sting in the transonic dynamics tunnel. Symmetric flutter
Doggett, R. V., Jr. +2 more
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