Evaluation of dynamic-scale models loading while buffeting study

Strength and thermal conditions of flying vehicles


Azarov Y. A.*, Garifullin M. F., Chernovolov R. A.**

National Research Center "Zhukovsky Institut", 1, Zhukovsky str, Zhukovsky, Moscow Region, 140180, Russia

*e-mail: y.al.azarov@yandex.ru
**e-mail: r.chernovolov@gmail.com


The presented work considers the specifics of the selection procedure of loads, acting on the dynamic-scale model (DSM), while testing in wind tunnels (WT) at various Mach and Reynolds numbers.

The article presents the procedure of aerodynamic loads refining, acting on DSM, based on “rigid” aerodynamic models’ WT testing. Based on dynamic pressure measurements in certain points of the rigid model, distributed aerodynamic loads for cross sections, normal to the DSM wing stiffness axis, can be determined. The information on linear and rotational forces, acting on cross sections is employed while the DSM design, ensuring the structural strength with the required safety coefficient.

Recommendations for computing distributed loads acting on the DSM and determining safety margins (the safety factor required for the testings equals to four) which fulfillment is necessary while th model design and fabrication, are given.

The stages which execution will allow perform the studies in WT are listed. The goals, objectives, features, problems and advantages of the DSM studies at natural Re numbers are formulated. The DSM design and manufacture specifics using various structural-power circuits made from modern materials and using modern technologies are demonstrated.

Some problems of ensuring the required Re numbers in studies of the phenomena of unsteady aeroelasticity in WT are considered. The difference between conducting an experiment with rigid aerodynamic models and DSM, as well as with full models and semi-models is shown.


buffet, dynamic-scale model, strength, loads, aerodynamic experiment


  1. Garifullin M.F., Orlova O.A. Uchenye zapiski TsAGI, 2018, vol. XLIX, no. 5, pp. 76 – 85.

  2. Sypalo K.I., Medvedskii A.L., Babichev O.V., Kazarinov G.G., Kan A.V. Trudy MAI, 2017, no. 95, available at: http://trudymai.ru/eng/published.php?ID=84545

  3. Grossman E.P. Flatter, (Flutter), Moscow, Trudy TsAGI no. 284, 1937, 248 p.

  4. Fyn Ya.Ts. Vvedenie v teoriyu aerouprugosti (Introduction to the theory of aeroelasticity), Moscow, Izd-vo fiziko-matematicheskoi literatury, 1959, 523 p.

  5. Lamper R.E., Lyshchinskii V.V. Vvedenie v teoriyu i modelirovanie flattera (Introduction to the flutter theory and modeling), Novosibirsk, Novosibirskii gosudarstvennyi tekhnicheskii universitet, 1999, 179 p.

  6. Azarov Yu.A., Zichenkov M.Ch., Ishmuratov F.Z., Chedrik V.V. Uchenye zapiski TsAGI, vol. XXXVII, no. 4, 2006, pp. 42 – 53.

  7. Vasil’ev B.E., Magerramova L.A., Kolotnikov M.E., Golubovskii E.R., Volkov M.E. Trudy MAI, 2017, no. 96, available at: http://trudymai.ru/eng/published.php?ID=85876

  8. Azarov Yu.A., Chernovolov R.A. Trudy MAI, 2017, no. 92, available at: http://trudymai.ru/eng/published.php?ID=77062

  9. Azarov Yu.A., Chernovolov R.A. Trudy MAI, 2017, no. 97, available at: http://trudymai.ru/eng/published.php?ID=87164

  10. Chernovolov R.A., Yanin V.V. Aviatsionnaya promyshlennost’, 2016, no. 3, pp. 9 – 14.

  11. Chernovolov R.A., Azarov Yu.A. Aviatsionnye materialy i tekhnologii, 2018, no. 2, pp. 75 – 87.

  12. Ulf Ringerts, David Eller, Donald F. Keller, Walter A. Silva. Design and testing of a full span aeroelastic wind tunnel model. IFASD 2017, International Forum on Aeroelasticity and Structural Dynamics, 25-28 June 2017, Como, Italy, available at: https://e.mail.ru/attachment/15438310430000000544/0;1

  13. Arutyunov A.G., Dydyshko D.V., Kuznetsov K.V. Trudy MAI, 2016, no. 89, available at: http://trudy.mai.ru/eng/published.php?ID=72654

  14. Chumakov D.M. Trudy MAI, 2014, no. 78, available at: http://trudy.mai.ru/eng/published.php?ID=53682

  15. Endogur A.I., Kravtsov V.A. Trudy MAI, 2015, no. 81, available at: http://trudymai.ru/eng/published.php?ID=57755

  16. Endogur A.I., Kravtsov V.A., Soloshenko V.N. Trudy MAI, 2014, no. 72, available at: http://trudymai.ru/eng/published.php?ID=47572

  17. Astapov V.Yu., Khoroshko L.L., Dudkov K.V. Trudy MAI, 2018, no. 101, available at: http://trudymai.ru/eng/published.php?ID=96683

  18. Ruslantsev A.N., Dumanskii A.M. Trudy MAI, 2017, no. 97, available at: http://trudymai.ru/eng/published.php?ID=87163

  19. Ruslantsev A.N., Dumanskii A.M., Alimov M.A. Trudy MAI, 2017, no. 96, available at: http://trudymai.ru/eng/published.php?ID=85659

  20. Gavva L.M. Trudy MAI, 2017, no. 93, available at: http://trudymai.ru/eng/published.php?ID=80504

  21. Mironenko V.V., Matsuro E.A. Trudy MAI, 2018, no. 99, available at: http://trudymai.ru/eng/published.php?ID=91939


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