The Development of an Interior Ballistic Model for Automated Continuous Propellant Production Control.

摘要

As a part of Project CASBL(Continuous Automatic Single Base Propellant Line), two gun interior ballistic computation methods were evaluated for the purpose of replacing charge establishment gun firings with predictions from a model. Such predictions in a continuous propellant production plant would eliminate the delay encountered when propellant acceptance tests were conducted at a proving ground. A differential coefficient method and an interior ballistic method based on ballistic similitude were used to predict the performance of a large number of 155-mm and 175-mm propellant production lots and a few experimental lots whose chemical and physical properties spanned the extreme ranges of variability to be expected during production. Of these two methods, the differential coefficient method gave the better results. In general, the standard deviation of error values for muzzle velocity using the differential coefficient method is about one half that of the ballistic similitude method.