F-16 Flutter Suppression System Investigation Feasibility Study and Wind Tunnel Tests

1982 ◽  
Vol 19 (2) ◽  
pp. 169-175 ◽  
Author(s):  
R. P. Peloubet ◽  
R. L. Haller ◽  
R. M. Bolding
Keyword(s):  
Wind Tunnel ◽  
Feasibility Study ◽  
Wind Tunnel Tests ◽  
Flutter Suppression ◽  
Suppression System

scholarly journals Hypersonic flutter and flutter suppression system of a wind tunnel model

2019 ◽  
Vol 32 (9) ◽  
pp. 2121-2132
Author(s):  
Chuanwei XUAN ◽  
Jinglong HAN ◽  
Bing ZHANG ◽  
Haiwei YUN ◽  
Xiaomao CHEN
Keyword(s):  
Wind Tunnel ◽  
Wind Tunnel Model ◽  
Flutter Suppression ◽  
Tunnel Model ◽  
Suppression System

A wind-tunnel investigation of a B-52 model flutter suppression system

1974 ◽  
Author(s):  
L. REDD ◽  
J. GILMAN, JR. ◽  
D. COOLEY ◽  
F. SEVART
Keyword(s):  
Wind Tunnel ◽  
Flutter Suppression ◽  
B 52 ◽  
Suppression System

scholarly journals Digital-flutter-suppression-system investigations for the active flexible wing wind-tunnel model

1990 ◽  
Author(s):  
BOYD PERRY, III ◽  
VIVEK MUKHOPADHYAY ◽  
SHERWOOD HOADLEY ◽  
STANLEY COLE ◽  
CAREY BUTTRILL
Keyword(s):  
Wind Tunnel ◽  
Wind Tunnel Model ◽  
Flexible Wing ◽  
Flutter Suppression ◽  
Tunnel Model ◽  
Suppression System

Wind-Tunnel Investigation of a B-52 Model Flutter Suppression System

1974 ◽  
Vol 11 (11) ◽  
pp. 659-663 ◽  
Author(s):  
L. T. Redd ◽  
J. Gilman ◽  
D. E. Cooley ◽  
F. D. Sevart
Keyword(s):  
Wind Tunnel ◽  
Flutter Suppression ◽  
B 52 ◽  
Suppression System

Group Delay in Digital Filter Induced Instability of a Two-Dimensional Airfoil Active Flutter Suppression System

2012 ◽  
Vol 226-228 ◽  
pp. 64-69
Author(s):  
Ming Li Yu
Keyword(s):  
Wind Tunnel ◽  
Digital Filter ◽  
Group Delay ◽  
Numerical Study ◽  
Wind Tunnel Test ◽  
Control Surface ◽  
Two Dimensional ◽  
Flutter Suppression ◽  
Active Flutter Suppression ◽  
Suppression System

The presented paper deals with the group delay in the digital filter induced instability of a two dimensional airfoil section active flutter suppression system. Firstly, the aeroelastic model of the airfoil with an ultrasonic motor actuated control surface is set up; secondly, both H∞and μ robust controllers are designed; and then, the group delay induced instability in wind tunnel test is presented; finally, through a combined theoretical and numerical study, the test phenomenon is well explained. Wind tunnel experiments and numerical simulations demonstrate that long enough group delay in digital filter can induce instability of flutter control system, the flutter under control will decrease first, and then become another flutter of lower frequency and moderated amplitude, and μ controller works better than H∞controller on the same condition.

scholarly journals Wind-Induced Phenomena in Long-Span Cable-Supported Bridges: A Comparative Review of Wind Tunnel Tests and Computational Fluid Dynamics Modelling

2021 ◽  
Vol 11 (4) ◽  
pp. 1642
Author(s):  
Yuxiang Zhang ◽  
Philip Cardiff ◽  
Jennifer Keenahan
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Wind Tunnel ◽  
Careful Analysis ◽  
Wind Effects ◽  
Wind Tunnel Tests ◽  
Long Span Bridges ◽  
Long Span ◽  
Comparative Review ◽  
Dynamics Modelling

Engineers, architects, planners and designers must carefully consider the effects of wind in their work. Due to their slender and flexible nature, long-span bridges can often experience vibrations due to the wind, and so the careful analysis of wind effects is paramount. Traditionally, wind tunnel tests have been the preferred method of conducting bridge wind analysis. In recent times, owing to improved computational power, computational fluid dynamics simulations are coming to the fore as viable means of analysing wind effects on bridges. The focus of this paper is on long-span cable-supported bridges. Wind issues in long-span cable-supported bridges can include flutter, vortex-induced vibrations and rain–wind-induced vibrations. This paper presents a state-of-the-art review of research on the use of wind tunnel tests and computational fluid dynamics modelling of these wind issues on long-span bridges.

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