[en] The current drive for increased efficiency in aeronautic structures such as aircraft, wind turbine blades and helicopter blades often leads to weight reduction. A con- sequence of this tendency can be increased flexibility, which in turn can lead to un- favourable aeroelastic phenomena involving large amplitude oscillations and non- linear effects such as geometric hardening and stall flutter. Vibration mitigation is one of the approaches currently under study for avoiding these phenomena. In the present work, passive vibration mitigation is applied to a nonlinear experimental aeroelastic system by means of a linear tuned vibration absorber. The aeroelastic apparatus is a pitch and flap wing that features a continuously hardening restoring torque in pitch and a linear restoring torque in flap. Extensive analysis of the sys- tem with and without absorber at pre-critical and post-critical airspeeds showed an improvement in flutter speed of around 36%, a suppression of a jump due to stall flutter, and a reduction in LCO amplitude. Mathematical modelling of the exper- imental system is used to demonstrate that optimal flutter delay is achieved when two of the system modes flutter at the same flight condition. Nevertheless, even this optimal absorber quickly loses effectiveness as it is detuned. The wind tunnel mea- surements showed that the tested absorbers were much slower to lose effectiveness than those of the mathematical predictions.
Disciplines :
Aerospace & aeronautics engineering
Author, co-author :
Verstraelen, Edouard ; Université de Liège > Département d'aérospatiale et mécanique > Laboratoire de structures et systèmes spatiaux
Habib, Giuseppe ; Université de Liège > Département d'aérospatiale et mécanique > Laboratoire de structures et systèmes spatiaux
Kerschen, Gaëtan ; Université de Liège > Département d'aérospatiale et mécanique > Laboratoire de structures et systèmes spatiaux
Dimitriadis, Grigorios ; Université de Liège > Département d'aérospatiale et mécanique > Interactions Fluide-Structure - Aérodynamique expérimentale
Language :
English
Title :
Experimental passive flutter suppression using a linear tuned vibration absorber
Publication date :
May 2017
Journal title :
AIAA Journal
ISSN :
0001-1452
eISSN :
1533-385X
Publisher :
American Institute of Aeronautics and Astronautics, Reston, United States - Virginia
Karpel, M., "Design for Active and Passive Flutter Suppression and Gust Alleviation," NASA CR 3482, 1981.
Dowell, E., Clark, R., Cox, D., Jr., Curtiss, C. H., Edwards, J., Hall, K., Peters, D., Scanlan, R., Simiu, E., Sisto, F., and Strganac, T., A Modern Course in Aeroelasticity, edited by Gladwell, G. M. L., Solid Mechanics and Its Applications, Kluwer Academic, Dordrecht, The Netherlands, 2005, pp. 611-669.
Borglund, D., and Kuttenkeuler, J., "Active Wing Flutter Suppression Using a Trailing Edge Flap," Journal of Fluids and Structures, Vol. 16, No. 3, 2002, pp. 271-294.
Yu, M., and Hu, H., "Flutter Control Based on Ultrasonic Motor for a Two-Dimensional Airfoil Section," Journal of Fluids and Structures, Vol. 28, Jan. 2012, pp. 89-102.
Huang, R., Qian, W., Hu, H., and Zhao, Y., "Design of Active Flutter Suppression and Wind-Tunnel Tests of a Wing Model Involving a Control Delay," Journal of Fluids and Structures, Vol. 55, May 2015, pp. 409-427.
Han, J.-H., Tani, J., and Qiu, J., "Active Flutter Suppression of a Lifting Surface Using Piezoelectric Actuation and Modern Control Theory," Journal of Sound and Vibration, Vol. 291, Nos. 3-5, 2006, pp. 706-722.
Rao, P., Strganac, T., and Rediniotis, O., Control of Aeroelastic Response via Synthetic Jet Actuators, AIAA, Reston, VA, 2000, pp. 1415-1423.
O'Donnell, K., Schober, S., Stolk, M., Marzocca, P., De Breuker, R., Abdalla, M., Nicolini, E., and Gurdal, Z., "Active Aeroelastic Control Aspects of an Aircraft Wing by Using Synthetic Jet Actuators: Modeling, Simulations, Experiments," Proceedings of the SPIE 6523, Modeling, Signal Processing, and Control for Smart Structures, April 2007. doi:10.1117/12.716775
Cunha-Filho, A., de Lima, A., Donadon, M., and Leo, L., "Flutter Suppression of Plates Using Passive Constrained Viscoelastic Layers," Mechanical Systems and Signal Processing, Vol. 79, 2016, Oct. 2015, pp. 99-111.
Malher, A., Doaré, O., and Touzé, C., "Pseudoelastic Shape Memory Alloys to Mitigate the Flutter Instability: A Numerical Study," Structural Nonlinear Dynamics and Diagnosis, edited by Belhaq, M., Vol. 168, Springer Proceedings in Physics, Springer, New York, 2015, pp. 353-365.
Lee, Y., Vakakis, A., Bergman, L., McFarland, D. M., and Kerschen, G., "Suppression Aeroelastic Instability Using Broadband Passive Targeted Energy Transfers, Part 1: Theory," AIAA Journal, Vol. 45, No. 3, 2007, pp. 693-711.
Lee, Y. S., Kerschen, G., McFarland, D. M., Hill, W. J., Nichkawde, C., Strganac, T. W., Bergman, L. A., and Vakakis, A. F., "Suppressing Aeroelastic Instability Using Broadband Passive Targeted Energy Transfers, Part 2: Experiments," AIAA Journal, Vol. 45, No. 10, 2007, pp. 2391-2400.
Lee, Y. S., Vakakis, A. F., Bergman, L. A., McFarland, D. M., and Kerschen, G., "Enhancing the Robustness of Aeroelastic Instability Suppression Using Multi-Degree-of-Freedom Nonlinear Energy Sinks," AIAA Journal, Vol. 46, No. 6, 2008, pp. 1371-1394.
Hubbard, S. A., Fontenot, R. L., McFarland, D. M., Cizmas, P. G. A., Bergman, L. A., Strganac, T. W., and Vakakis, A. F., "Transonic Aeroelastic Instability Suppression for a Swept Wing by Targeted Energy Transfer," Journal of Aircraft, Vol. 51, No. 5, 2014, pp. 1467-1482.
Ingram, C., and Szwarc, W., "Passive Flutter Suppression," Journal of Aircraft, Vol. 13, No. 7, 1976, pp. 542-543.
Nagase, T., and Hisatoku, T., "Tuned-Pendulum Mass Damper Installed in Crystal Tower," Structural Design of Tall Buildings, Vol. 1, No. 1, 1992, pp. 35-56.
Lu, X., Li, P., Guo, X., Shi, W., and Liu, J., "Vibration Control Using ATMD and Site Measurements on the Shanghai World Financial Center Tower," Structural Design of Tall and Special Buildings, Vol. 23, No. 2, 2014, pp. 105-123.
Gu, M., Chang, C., Wu, W., and Xiang, H., "Increase of Critical Flutter Wind Speed of Long-Span Bridges Using Tuned Mass Dampers," Journal of Wind Engineering and Industrial Aerodynamics, Vol. 73, No. 2, 1998, pp. 111-123.
Dallard, P., Fitzpatrick, A., Flint, A., Le Bourva, S., Low, A., Ridsdill Smith, R., and Willford, M., "The London Millennium Footbridge," Structural Engineer, Vol. 79, No. 22, 2001, pp. 17-21.
Lin, Y.-Y., Cheng, C.-M., and Lee, C.-H., "A Tuned Mass Damper for Suppressing the Coupled Flexural and Torsional Buffeting Response of Long-Span Bridges," Engineering Structures, Vol. 22, No. 9, 2000, pp. 1195-1204.
Chen, X., and Kareem, A., "Efficacy of Tuned Mass Dampers for Bridge Flutter Control," Journal of Structural Engineering, Vol. 129, No. 10, 2003, pp. 1291-1300.
Malher, A., Touzé, C., Doaré, O., Habib, G., and Kerschen, G., "Passive Control of Airfoil Flutter Using a Nonlinear Tuned Vibration Absorber," Proceedings of the 11th International Conference on Flow-Induced Vibrations, FIV2016, TNO, the Netherlands Organisation for Applied Scientific Research, The Netherlands, Aug. 2016.
Hancock, G., Wright, J., and Simpson, A., "On the Teaching of the Principles of Wing Flexure-Torsion Flutter," Aeronautical Journal, Vol. 89, No. 888, 1985, pp. 285-305.
Razak, N. A., Andrianne, T., and Dimitriadis, G., "Flutter and Stall Flutter of a Rectangular Wing in a Wind Tunnel," AIAA Journal, Vol. 49, No. 10, 2011, pp. 2258-2271.
Bisplinghoff, R., Ashley, H., and Halfman, R., Aeroelasticity, Dover, Mineola, NY, 1996, pp. 527-626.
Fung, Y., An Introduction to the Theory of Aeroelasticity, Dover, Mineola, NY, 1993, pp. 186-246.
Theodorsen, T., "General Theory of Aerodynamic Instability and the Mechanism of Flutter," NACA TR-496, 1949.
Lee, B., Gong, L., and Wong, Y., "Analysis and Computation of Nonlinear Dynamic Response of a Two-Degree-of-Freedom System and Its Application in Aeroelasticity," Journal of Fluids and Structures, Vol. 11, No. 3, 1997, pp. 225-246.
Dimitriadis, G., "Numerical Continuation of Aeroelastic Systems: Shooting vs Finite Difference Approach," RTO-MP-AVT-152 Limit Cycle Oscillations and Other Amplitude-Limited Self-Excited Vibrations, NATO Research and Technology Organisation (RTO), AVT-152-025, Loen, Norway, May 2008.
