Vibrating Profile in the Aerodynamic Tunnel – Identification of the Start of Flutter

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Authors

  • Jan Kozanek Department of Dynamics and Vibration, Institute of Thermomechanics ASCR,v.v.i., Dolejskova 5, 18200 Prague 8, Czech Republic Author
  • Vaclav Vlcek Department of Dynamics and Vibration, Institute of Thermomechanics ASCR,v.v.i., Dolejskova 5, 18200 Prague 8, Czech Republic Author
  • Igor Zolotarev Department of Dynamics and Vibration, Institute of Thermomechanics ASCR,v.v.i., Dolejskova 5, 18200 Prague 8, Czech Republic Author

DOI:

https://doi.org/10.5890/JAND.2014.12.003

Abstract

The experimental results for the vibrating NACA0015 profile elastically supported in a translation and rotation for a set of increasing Mach numbers of the airflow are presented. The profile was placed in the aerodynamic tunnel of the Institute of Thermomechanics ASCR. The support properties of the profile were modified by three additional masses to control the eigenfrequencies corresponding to transversal vibrations and verified by the identification of the complex eigenvalues (eigenfrequencies, damping) for zero flow velocity in laboratory. The transversal free vibrations as the time functions are graphically depicted for stable vibrations and in the cases of the starting flutter. The start of the flutter was determined from free vibrations of kinematically excited profile. The complex eigenvalues were identified as the functions of Mach number including corresponding limits of the system aeroelastic stability.

References

[1] Kozanek, J., Vlcek, V., and Zolotarev, I. (2013), Vibrating profile kinematics in the start of flutter, Proc. of the 12th Conference on Dynamical Systems - Applications, ed. J. Awrejcewicz and others, Lodz, Poland, 667–676.

[2] Vlcek, V. and Kozanek, J. (2011), Preliminary interferometry measurements of flow field around fluttering NACA0015 profile, Acta Technica, 56, 379–387.

[3] Awrejcewicz, J. (2012), Classical Mechanics: Dynamics, Springer, New York.

[4] He, J. and Fu, Z.-F. (2004) Modal Analysis, Butterworth Heinemann, Oxford.

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PublishedDecember 2014

Usage tracking begins September 1, 2026.

History Published

Issue

Vol. 3 No. 4 (2014): Regular Issue

Section

Research Articles

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Unless an article landing page states a Creative Commons or other article-specific license, the article is published by L&H Scientific Publishing, LLC and all rights are reserved. The article-level license and copyright notice govern access and reuse.

How to Cite

Kozanek, J., Vlcek, V., & Zolotarev, I. (2026). Vibrating Profile in the Aerodynamic Tunnel – Identification of the Start of Flutter. Journal of Applied Nonlinear Dynamics, 3(4), 317-323. https://doi.org/10.5890/JAND.2014.12.003

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