On methods of developing and comparison mathematical models of aviation ejection launchers

Аuthors

Pravidlo M. N.¹, Zhuravlev L. I.²

1. Toropov Machine-Building Design Bureau "Vimpel", 90, Volokolamskoe shosse, Moscow, 125424, Russia
2. Moscow Aviation Institute (National Research University), 4, Volokolamskoe shosse, Moscow, А-80, GSP-3, 125993, Russia

Abstract

This article is dedicated to modeling problems of dynamics of aviation ejection launchers. An analysis of existed approaches to mathematical models development for ejection launchers is carried out. A method is suggested to its modeling, based on using numerical method of computation coefficients of Lagrange equation of 2-nd kind and on mathematical model comparison based on ejection launcher's ground testing results. Comparison problem is viewed as dynamic system comparison problem. Method of comparison with reference model is used there. Provided results of comparison with developed method use showing good modeling results convergence with results of ejection launcher's ground testing.

Keywords:

aviation ejection launcher, mathematical model, comparison, reference model, computation