Efficiency of terminal control in the trans-atmospheric first stage of an aerospace system under atmospheric and aerodynamic disturbances


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Abstract

Multi-step terminal control of the subhypersonic first stage of an aerospace system in trans-atmospheric climb is considered. Passive motion of spacecraft in conditions of joint influence of atmospheric and aerodynamic disturbance is analyzed. Achieving the prescribed value of the trajectory inclination angle is the terminal motion condition. Terminal height is a controlled value. An algorithm of terminal control for the formation of the command value of aerodynamic lift coefficient is proposed. The Newton method with one or more iterations at a control step is used in determining command control. The serviceability and efficiency of the algorithm compensating the influence of atmospheric and aerodynamic disturbances on the preset terminal altitude condition of spacecraft motion are analyzed. The results of simulating spacecraft motion with terminal control for maximally «rarefied» atmosphere and for different levels of deviation of the drag coefficient are discussed. 

About the authors

V. L. Balakin

Samara National Research University

Author for correspondence.
Email: balakin@ssau.ru

Doctor of Science (Engineering), Professor
Professor of the Department of Automatic Systems of Power Plants

Russian Federation

A. V. Kovalyov

Samara National Research University

Email: ssau@ssau.ru

postgraduate student

Russian Federation

M. M. Krikunov

Samara National Research University

Email: krikunov_mm@mail.ru

Candidate of Science (Engineering)
Assistant of the Department of Space Engineering

Russian Federation

References

  1. Balakin V.L., Kovalyov A.V. Terminal control of aerospace system subhypersonic first stage. Vestnik of the Samara State Aerospace University. 2016. V. 15, no. 2. P. 9-21. (In Russ.).
  2. doi: 10.18287/2412-7329-2016-15-2-9-21
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  4. doi: 10.2514/6.2005-3241
  5. Urschel P.H., Cox T.H. Launch Condition Deviations of Reusable Launch Vehicle Simulations in Exo-Atmospheric Zoom Climbs. AIAA Atmospheric Flight Mechanics Conference and Exhibit (August 2003, Austin, United States). doi: 10.2514/6.2003-5544
  6. Balakin V.L., Potapov V.I. Nominal motion control program in a supersonic carrier aircraft. Vestnik of the Samara State Aerospace University. 2011. No. 6 (30). P. 15-21. (In Russ.)
  7. Shkol'nyy E.P., Mayboroda A. Atmosfera i upravlenie dvizheniem letatel'nykh apparatov [Atmosphere and aircraft motion control]. Leningrad: Gidrometeoizdat Publ., 1973. 308 p.

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