REFINEMENT TO MODIFIED POINT MASS TRAJECTORY SIMULATION FOR BASE-BLEED PROJECTILE

摘要

We'd like to propose another base-bleed model, which is equivalent to STANAG 4355 model and uses same data. It is formulated only by ordinary differential equations which show normal form. Therefore it is easier to understand and much easier to make a computing code than before. STANAG 4355 states also modified point-mass trajectory simulation which is formulated by ordinary differential equations. However these differential equations do not show normal form, which is not suitable for computer numerical calculation. Bradley showed a normal form ordinary differential equations for it. Combining his model with our proposed model for modified point-mass trajectory simulation for base-bleed projectile, we obtain ordinary differential equations which show normal form. Therefore it may bring correct algorithm for computation and save hours for making a computing code.