Wing/store active flutter suppression - Correlation of analyses and wind tunnel data

1978 ◽  
Author(s):  
T. NOLL ◽  
L. HUTTSELL
Keyword(s):  
Wind Tunnel ◽  
Flutter Suppression ◽  
Active Flutter Suppression ◽  
Wind Tunnel Data

scholarly journals Active flutter suppression of a multiple-actuated-wing wind tunnel model

2014 ◽  
Vol 27 (6) ◽  
pp. 1451-1460 ◽  
Author(s):  
Wenmin Qian ◽  
Rui Huang ◽  
Haiyan Hu ◽  
Zhao Yonghui
Keyword(s):  
Wind Tunnel ◽  
Wind Tunnel Model ◽  
Flutter Suppression ◽  
Tunnel Model ◽  
Active Flutter Suppression

scholarly journals Model Updating and Aeroelastic Correlation of a Scaled Wind Tunnel Model for Active Flutter Suppression Test

Aerospace ◽  
2021 ◽  
Vol 8 (11) ◽  
pp. 334
Author(s):  
Domenico Di Leone ◽  
Francesco Lo Balbo ◽  
Alessandro De Gaspari ◽  
Sergio Ricci
Keyword(s):  
Finite Element ◽  
Wind Tunnel ◽  
Model Updating ◽  
Three Dimensional ◽  
Wind Tunnel Test ◽  
Ground Vibration ◽  
Element Model ◽  
Sensitivity Analyses ◽  
Flutter Suppression ◽  
Active Flutter Suppression

This article presents a modal correlation and update carried out on an aeroelastic wind tunnel demonstrator representing a conventional passenger transport aircraft. The aim of this work is the setup of a corresponding numerical model that is able to capture the flutter characteristics of a scaled aeroelastic model designed to investigate and experimentally validate active flutter suppression technologies. The work described in this paper includes different finite element modeling strategies, the results of the ground vibration test, and finally the strategies adopted for modal updating. The result of the activities is a three-dimensional hybrid finite element model that is well representative of the actual aeroelastic behavior identified during the wind tunnel test campaign and that is capable of predicting the flutter boundary with an error of 1.2%. This model will be used to develop active flutter suppression controllers, as well as to perform the sensitivity analyses necessary to investigate their robustness.

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.

Development of a Wind Tunnel Model for Active Flutter Suppression Studies

2019 ◽  
Author(s):  
Sergio Ricci ◽  
Federico Fonte ◽  
Alessandro De Gaspari ◽  
Luca Riccobene ◽  
Paolo Mantegazza ◽  
...  
Keyword(s):  
Wind Tunnel ◽  
Wind Tunnel Model ◽  
Flutter Suppression ◽  
Tunnel Model ◽  
Active Flutter Suppression

Active Flutter Suppression Analysis and Wind Tunnel Studies of a Commercial Transport Configuration

2020 ◽  
Author(s):  
Luca Marchetti ◽  
Alessandro De Gaspari ◽  
Luca Riccobene ◽  
Francesco Toffol ◽  
Federico Fonte ◽  
...  
Keyword(s):  
Wind Tunnel ◽  
Flutter Suppression ◽  
Active Flutter Suppression
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