发射药使用寿命预估技术

Prediction Technique of Gun Propellant Service Life

为更简单而准确地对发射药的使用寿命进行预估,以经典内弹道理论为基础,建立了基于发射药动静态燃速相关性的内弹道性能预估模型;对不同老化年限的发射药进行了弹道性能的预估,并进行了验证试验。结果表明:在相同的装药量下,建立的预估模型可以对老化样品的内弹道性能做出准确的预估,压力误差小于2%,速度误差小于1%,可以为库存发射药的使用寿命检测提供一种新的手段。

In order to predict propellant service life simply and exactly,interior ballistic performance prediction model was built,based on the static and dynamic burning rate relativity of propellant,and the classic interior ballistic theoretic.Ballistic performance evaluation and validate experiments were also carried out for different aged gun propellant.The results show that the estimate model could make exactly estimate for interior ballistic performance of aged samples under the same charge mass.The pressure deviation is less than 2%and the velocity deviation less than 1%.The technique could provide a new measure method for service life of storaged propellant.