Geared-elevator flutter study [PDF]
An experimental and analytical study was made of the transonic flutter characteristics of a supersonic transport tail assembly model having an all-movable, horizontal tail with a geared elevator. Two model configurations, namely, one with a gear-elevator
Doggett, R. V., Jr. +2 more
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SCAR arrow-wing active flutter suppression system [PDF]
The potential performance and direct operating cost benefits of an active flutter suppression system (FSS) for the NASA arrow-wing supersonic cruise configuration were determined.
Gordon, C. K., Visor, O. E.
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Eigenspace techniques for active flutter suppression [PDF]
Eigenspace (ES) techniques were used to design an active flutter suppression system for the DAST ARW-2 flight test vehicle. The ES controller meets control surface activity specifications and at the flutter test condition provides reduced wing root ...
Garrard, W. L., Liebst, B. S.
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Status of two studies on active control of aeroelastic response [PDF]
The application of active control technology to the suppression of flutter has been successfully demonstrated during two recent studies in the Langley transonic dynamics tunnel.
Abel, I., Sandford, M. C.
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PARS: Programs for Analysis and Resizing of Structures, user manual [PDF]
PARS processors and their use, flutter analysis, sensitivity analysis for stresses, and resizing are presented. Design variable definition and interface with finite element model, static constraints and their derivatives, flutter derivatives, and ...
Haftka, R. T., Prasad, B., Tsach, U.
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Effects of angle of attack and vertical fin on transonic flutter characteristics of an arrow-wing configuration [PDF]
Experimental transonic flutter results are presented for a simplified 1/50 size, aspect ratio 1.77, wind tunnel model of an arrow wing design. Flutter results are presented for two configurations; namely, one with and one without a ventral fin mounted at
Doggett, R. V., Jr., Ricketts, R. A.
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Functional Interplay Between Upper Loop Reentry and Clockwise Cavotricuspid Isthmus-Dependent Flutter in a Non-surgical Right Atrium: A Case of Dual-Loop Macroreentry. [PDF]
CureusSosa-Alvarez CJ +3 more
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The effects of rotational flow, viscosity, thickness, and shape on transonic flutter dip phenomena [PDF]
The transonic flutter dip phenomena on thin airfoils, which are employed for propfan blades, is investigated using an integrated Euler/Navier-Stokes code and a two degrees of freedom typical section structural model. As a part of the code validation, the
Kaza, Krishna Rao V. +2 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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Results of a parametric aeroelastic stability analysis of a generic X-wing aircraft [PDF]
This paper discusses the trends in longitudinal dynamic aeroelastic stability of a generic x-wing aircraft model with design parameter variations. X-wing rotor blade sweep angle, ratio of blade mass to total vehicle mass, blade structural stiffness cross-
Gilbert, Michael G. +2 more
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