THE ACADEMIC STUDY OF THE PERFORMANCE INFLUENCE OF THE GAP CHANGE BETWEEN THE BARREL AND PROJECTILE ON THE GUN INTERIOR BALLISTIC

摘要

In the special type of the gun, the gap size between the barrel and projectile is one of the very important parameters for the design of the gun interior ballistics. In order to study the performance influence of the gap change between the barrel and projectile on the gun interior ballistic, a conventional interior ballistic model is established, calculating the influence of the ejection by the gap between the barrel and projectile. On the basis of the model, the theoretical calculation and analysis proceeded for the effect on the performance of the gun interior ballistic by the gap change between the barrel and projectile. The quantitative relation is given between the gap change and the performance of the interior ballistic. The calculation results provide the essential technical information and reference for the design process of the interior ballistic and the propellant charge.