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1 Bulletin of the Polish Academy of Sciences. Technical Sciences

1 2018

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35 mm ammunition’s trajectory model identification based on firing tables

Baranowski L., Gadomski B., Majewski P., Szymonik J.

Bulletin of the Polish Academy of Sciences. Technical Sciences

2018

Vol. 66, nr 5

635--643

The article presents a procedure designed for identification of projectile’s trajectory model through aerodynamic coefficients estimation. The identification process is based on firing tables artificially prepared (firing tables prepared using mathematical flight model for the projectile instead of trajectories recorded on field tests) with the use of modified point–mass and rigid body trajectory models. All the necessary data, including physical parameters of the projectile and its aerodynamic characteristics are provided. The detailed results of estimation of chosen aerodynamic coefficients are presented in both visual and tabular form. The main purpose of this paper is to establish the minimum number of trajectories (as characterized in firing tables), and the permissible error of initial parameters being passed to the mathematical model that would allow the correct identification of projectile’s trajectory model.