Mathematical Models of Transonic Flatter of Aerody-namic Control Surfaces of Supersonic Aircraft

Authors

  • Oleksandr Safronov The National Defence University of Ukraine named after Ivan Cherniakhovskyi
  • Bohdan Semon The National Defence University of Ukraine named after Ivan Cherniakhovskyi
  • Oleksandr Nedilko The National Defence University of Ukraine named after Ivan Cherniakhovskyi
  • Yurii Bodryk The National Defence University of Ukraine named after Ivan Cherniakhovskyi

DOI:

https://doi.org/10.3849/aimt.01543

Keywords:

aerodynamic control surface, Mach number, mathematical model, oscillations, supersonic aircraft, transonic flutter

Abstract

In the article, the joint analysis of the Bernoulli equations for compressed gas, variations of the supersonic flow parameters of the Prandtl-Meyer expansion fan and the hypothesis of aerofoil dynamic curvature were used to develop a linear and a nonlinear mathematical models describing the occurrence of transonic flutter of aerodynamic control surfaces of supersonic aircraft. The analysis of the obtained mathematical models confirms a theoretical possibility of the occurrence of transonic flutter of aerodynamic control surfaces of supersonic aircraft that is due to the peculiarities of the interaction of shock waves with the angular velocity of elastic bending oscillations of aerodynamic control surfaces.

Author Biographies

Oleksandr Safronov, The National Defence University of Ukraine named after Ivan Cherniakhovskyi

Doctor of Technical Sciences, Professor, Leading Researcher at the Centre for Military and Strategic Studies

Bohdan Semon, The National Defence University of Ukraine named after Ivan Cherniakhovskyi

Doctor of Technical Sciences, Professor, Chief Researcher at the Science and Technology Management Centre

References

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SAFRONOV, O.V., B.Y. SEMON and O.M. NEDILKO. A Method for Estimating the Change in Pressure of Local Supersonic Flow on the Control Surface Aerofoil under Transonic Flatter (in Ukrainian). Science & Defence, 2019, 2, pp. 39-43. DOI 10.33099/2618-1614-2019-7-2-39-43.

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Published

01-09-2022

How to Cite

Safronov, O., Semon, B., Nedilko, O., & Bodryk, Y. (2022). Mathematical Models of Transonic Flatter of Aerody-namic Control Surfaces of Supersonic Aircraft. Advances in Military Technology, 17(2), 195–209. https://doi.org/10.3849/aimt.01543

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Research Paper

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