摘要
以机械撞击载荷下固体推进剂裂纹摩擦热点细观模型为基础,结合热粘弹理论和动力有限元法,分析计算发动机结构撞击变形及装药内部热点形成,确定产生高温热点撞击临界速度。分析计算了小型试验发动机撞击临界速度,研究讨论了推进剂力学及理化特性变化对撞击临界速度的影响。
Based on me,so-scale hot-spot model of solid propellant, with application of thermo-viscoelasticity and hydrodynamic finite elements method, be studied the deformation of SRM and hot-spot formation in the grain, and determined the critical impact velocity for propellant ignition. The critical impact velocity of small SRM is computed. The influences of parameters variations of `solid propellant to the critical impact velocity are investigated.
出处
《弹箭与制导学报》
CSCD
北大核心
2006年第1期93-96,共4页
Journal of Projectiles,Rockets,Missiles and Guidance
关键词
固体火箭发动机
机械撞击
热点
安全性
solid rocket motor
mechanical impact
hot-spot
safety of solid rocket motor
