4.44444

4.4 | 9 ratings Rate this file 60 downloads (last 30 days) File Size: 307.9 KB File ID: #3938

Flutter Analysis Model

by Cole Stephens

 

04 Sep 2003 (Updated 01 Mar 2007)

No BSD License  

Models a 2 DOF wing using SimMechanics.

Download Now | Watch this File

File Information
Description

This model demonstrates how to implement a coupled structural-aerodynamic problem.

The wing, otherwise rigid, is allowed to pitch and plunge. The motion of the wing is defined using SimMechanics blocks. The aerodynamic model is a simple, quasi-steady formulation.

Dynamic pressure is manipulated by varying the Mach number & Altitude. You can also vary the CG location of the wing by double clicking on the picture of the BACT subsystem.

The structural, mass, and aerodynamic properties all come from the following paper:
AIAA 96-3437
"Modeling the Benchmark Active Control Technology Wind Tunnel Model for Application to Flutter Suppression" by Martin R. Waszak of NASA Langley.

Automatic flutter detection is implemented via a state-machine in Stateflow.

Acknowledgements
This submission has inspired the following:
Automated Failure Boundary Mapping
Required Products Aerospace Blockset
Aerospace Toolbox
SimMechanics
Simulink
Stateflow
Simulink 3D Animation
MATLAB release MATLAB 7.3 (R2006b)
Zip File Content  
Other Files AIAA_96_3437.pdf,
BACTwing.jpg,
FindFlutBnd.m,
Flutter.mdl,
FlutterSuppression.mdl,
make2plots.m,
make3plots.m,
vrImage.jpg,
wing2.wrl
Tags for This File  
Everyone's Tags
Tags I've Applied
Add New Tags Please login to tag files.
Comments and Ratings (12)
29 Sep 2005 Mohammed Anwar

I could not open the file with my Matlab version 12.1, is there anyway to open it with this version??

19 May 2006 Samual roxio

very informative

01 Jul 2006 Sanjay Mata  
16 Mar 2007 hamed nozari  
18 Apr 2007 jaber latify  
06 Jun 2007 name name  
17 Nov 2007 Milton Fernandez  
18 Nov 2007 mohammed khaled  
18 Nov 2007 mohammed khaled

thank you a lot for this informations and i love mathworks very much

04 Dec 2007 Ahmed Lachemat

thank's

19 Nov 2008 Vivek Mukhopadhyay

For more robust control law design for flutter suppression of BACT model, see Mukhopadhyay, V., “Transonic Flutter Suppression Control Law Design and Wind Tunnel Test Results,” Journal of Guidance, Control, and Dynamics, Vol. 23, No. 5, 2000, pp. 930–937 (see also pp. 913–956; and Vol. 23 No. 6, 2000, pp. 1093–1139; and Vol. 24, No. 1, 2001, pp. 146–192 for all BACT related papers)

18 Sep 2009 azuwan

hello...is there anyone here can help me....
i have to make a project that can recognize two type of fruit....epal n oren....can anyone here help me????

Please login to add a comment or rating.
Updates
01 Mar 2007

Lots of updates to this submission:
* FindFlutBnd will run the "Flutter.mdl" file to find a flutter point @ Mach 0.77
* UI updates
* Closed-Loop addition
* VR model

Tag Activity for this File
Tag Applied By Date/Time
aerospace Cole Stephens 22 Oct 2008 07:07:08
aeronautics Cole Stephens 22 Oct 2008 07:07:08
aerodef Cole Stephens 22 Oct 2008 07:07:08
flutter Cole Stephens 22 Oct 2008 07:07:08
airfoil Cole Stephens 22 Oct 2008 07:07:08
wing Cole Stephens 22 Oct 2008 07:07:08
aerodynamics Cole Stephens 22 Oct 2008 07:07:08
aeroelasticity Cole Stephens 22 Oct 2008 07:07:08
airfoil Ed Keller 02 Dec 2008 13:41:00
aeroelasticity Srisai Sivakumar 10 Jun 2009 07:52:42
 

MATLAB Central Terms of Use

NOTICE: Any content you submit to MATLAB Central, including personal information, is not subject to the protections which may be afforded information collected under other sections of The MathWorks, Inc. Web site. You are entirely responsible for all content that you upload, post, e-mail, transmit or otherwise make available via MATLAB Central. The MathWorks does not control the content posted by visitors to MATLAB Central and, does not guarantee the accuracy, integrity, or quality of such content. Under no circumstances will The MathWorks be liable in any way for any content not authored by The MathWorks, or any loss or damage of any kind incurred as a result of the use of any content posted, e-mailed, transmitted or otherwise made available via MATLAB Central. Read the complete Terms prior to use.

Contact us at files@mathworks.com