温湿度变化对NEPE推进剂力学性能的影响分析  

Effect Analysis of Heat and Humidity Change on Mechanical Properties of NEPE Propellant

作　　者：李红霞[1] 强洪夫[1] 王广[1] 周志清[1] 

机构地区：[1]西安第二炮兵工程学院,西安710025

出　　处：《战术导弹技术》2010年第1期78-80,99,共4页Tactical Missile Technology

摘　　要：NEPE推进剂的失效机理可为某新型发动机设计和寿命预估提供理论支持.为深入研究该推进剂在湿热环境中的力学性能变化,进行了高温湿加速老化试验,并借助双因素方差分析方法考查温、湿度对最大抗拉强度(σm)的影响程度.结果表明高温湿环境使NEPE推进剂的σm急剧减小;温、湿度对σm有显著影响;温、湿度耦合在老化前期对σm有明显影响,在老化后期作用变弱对σm没有显著影响.Disabled mechanism of NEPE propellant is the theoretical support for design and life forecast of one new motor.For further studying mechanical properties change of NEPE propellant in humidity and heat conditions,the accelerated aging experiment is conducted.Effect degree of heat and humidity change on σm is checked by two-factor square difference analysis.The results show that high humidity and high heat make σm toboggan,humidity and heat markedly effect σm,coupling of humidity and heat acts σm markedly in ...

关 键 词：NEPE推进剂 最大抗拉强度 加速老化 显著性分析 

分 类 号：V512[航空宇航科学与技术—航空宇航推进理论与工程]