基于修正Arrhenius方法的SRM药柱储存寿命预估

A Research of Solid Rocket Motor Grain Storage Life Forecast Based on Modified Arrhenius Method

高温加速老化法常用来解决固体推进剂药柱储存寿命预估问题。介绍了传统的加速老化Arrhenius模型在解决SRM药柱储存寿命预估问题中的应用,并针对传统Arrhenius方法的局限性,将Arrhenius公式修正为三参数公式,并给出了修正Arrhenius寿命预测模型的理论推导。分别基于该传统方法和修正方法对某型SRM药柱储存寿命进行了预估,并与常温试验外推储存寿命进行了比较。结果表明,修正Arrhenius方法预估误差更小,预估精度更高,更适用于SRM药柱储存寿命的预估。

The accelerated aging test is used to forecast the grain storage life usually.The application of solid rocket motor grain storage life forecast was introduced based on traditional Arrhenius model.Focused on the localization of the traditional Arrhenius method,the traditional Arrhenius model was modified,and the life forecast model based on modified Arrhenius model was given.One type solid rocket motor grain storage life was forecasted based on modified method and traditional method respectively,and two results were compared with the normal temperature extrapolated life.The result suggests that the precision of modified method is better,and is more suitable for life forecast.