CAJ | 학술논문

对某型自然储存了14年的火箭发动机固体推进剂解剖，测试其装药的力学性能。结果表明，发动机装药的力学性能变化不大，发动机内部不同部位装药的老化程度不一样。对某型导弹固体助推器推进剂进行了高温加速老化试验，得到了推进剂在温度作用下的老化规律，发现随着老化时间的增加，推进剂的最大延伸率下降，老化温度越高，最大延伸率的下降速率越快。运用线性模型对试验数据进行了拟合，各老化温度下的推进剂的性能变化速度常数与时间的关系相关性较好，并结合推进剂老化速率与温度的关系，得到了变温环境下推进剂老化参数变化量的计算公式。
대모형자연저존료14년적화전발동궤고체추진제해부，측시기장약적역학성능。결과표명，발동궤장약적역학성능변화불대，발동궤내부불동부위장약적노화정도불일양。대모형도탄고체조추기추진제진행료고온가속노화시험，득도료추진제재온도작용하적노화규률，발현수착노화시간적증가，추진제적최대연신솔하강，노화온도월고，최대연신솔적하강속솔월쾌。운용선성모형대시험수거진행료의합，각노화온도하적추진제적성능변화속도상수여시간적관계상관성교호，병결합추진제노화속솔여온도적관계，득도료변온배경하추진제노화삼수변화량적계산공식。
Through mechanical property test of propellant which has natural deposited for 14 years,it was can be seen that the mechanical property has not change much and the aging characteristic different with different part of engine. Through temperature accelerated aging test,obtained the aging rule with different temperature,the prolongation ratio de-creased with the ageing time increasing and got decrease rate faster with more temperature.Simulated the test dates with liner models,the pertinences of capability changed constant with different aging temperature are very well,then the equation of aging parameters of natural temperature change can be obtained.