Factor analysis of input parameters with the strongest effects on the two phase flow model in an automatic rifle barrel

Abstract

The one-factor experiment design has been applied in the analysis of all input parameters occurring in the two phase flow process in automatic rifle barrels. The parameters predominantly influencing input characteristics have been chosen afterwards. A complete factor experiment plan is given for 24 chosen parameters, with the analysis of each particular parameter as well as of their effects on output characteristics. Parameter effects are ranked regression polynomials with regression coefficients are determined and average value deviation limits are given by dispersion and regression analyses. The complete analysis is carried out for the maximum pressure of powder gases and the muzzle velocity as two significant output characteristics of all arms. Based on calculation results, tabular and graphical 3D presentation of flow parameters is given as a function of projectile time and trajectory.