This article is cited in 1 paper

Gases and Fluids

Algorithm for solving the inverse problem of ballistics in the case of an asymmetric object

S. V. Bobashev, N. P. Mende, A. B. Podlaskin, V. A. Sakharov

Ioffe Institute, St. Petersburg

Abstract: An algorithm to identify the aerodynamic characteristics of an asymmetric object from its trajectory data obtained in a ballistic experiment is developed based on the technique for estimating the nonlinear system’s parameters. Using the method of successive approximations, the coefficients of the aerodynamic function polynomial representation are found that best describe measuring data. The essence of the algorithm is the solution of the direct problem of the symmetric object’s dynamics using the complete set of Euler dynamic equations. The variation of the desired parameters is statistically estimated during calculations. The algorithm allows for jointly processing data of a series of experiments with similar models. Thereby, the volume of processed data is augmented and the final result becomes more accurate.

Received: 19.03.2014

 English version: Technical Physics, 2014, 59:11, 1585–1590

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