Author:
Kosovtsov Yuri,Hrabchak Volodymyr
Abstract
The aim of this paper is to develop a technique for the identifi cation of the projectile aerodynamic coefficients using the free-fl ight-test measurements. An algebraic method for solving the inverse problem of external ballistics is proposed. As the initial mathematical model of the projectile fl ight, a simplifi ed version of the modifi ed point-mass trajectory model in explicit form is used. For all aerodynamic coefficients of the model, exact explicit analytic expressions for their dependence on the experimentally measurable trajectory parameters are derived. Importantly, within the proposed approach, the solution to the inverse problem is unique.
Publisher
Central Scientific Research Institute of Armaments and Military Equipment of Armed Forces of Ukrainе
Reference18 articles.
1. Lieske, R.F & Reiter, M.L. (1966). Equations of motion for a modifi ed point mass trajectory. U.S. Army Ballistic Research Laboratory. Report No. 1314. March 1966.
2. McCoy, R.L. (1999). Modern Exterior Ballistics. The Launch and Flight Dynamics of Symmetric Projectiles. Schiffer Publishing. Atglen.
3. STANAG 4355. (2009). The Modifi ed Point Mass and Five Degrees of Freedom Trajectory Models. Ed. 3.
4. Baranowski, L., Gadomski, B., Majewski, P. & Szymonik, J. (2016). Explicit “ballistic M-model: a refi nement of the implicit “modified point mass trajectory model”. Bull. Pol. Ac. Tech. No 64(1). Pp. 81—89.
5. Linse, D.J. & Stengel, R.F. (1993). Identifi cation of aerodynamic coeffi cients using computational Neural Networks. J. of Guidance, Control, and Dynamics. No 16(6). Pp. 1018—1025.