摘要
建立了套管型药柱结构的固体火箭发动机燃烧室有限元分析模型,采用冲击响应谱模拟固体火箭发动机受到的外界冲击载荷,分析了固体火箭发动机在横向冲击载荷作用下其药柱、支撑杆的受力、变形。计算结果表明,对于套管型药柱结构的固体火箭发动机,药柱和支撑杆的中部受力和变形最大;随着冲击响应谱斜率增大,套管型药柱的最大应力值逐渐变小。
The finite element model of solid rocket motor＇ s （SRM） combustion chamber with canular solid propellant grains is constructed. The SRM under shock load is simulated by shock response spectrum. The stress and deformation of solid propellant grains and supporting bar are researched with transverse shock load, and results show that the maximum stress and deformation are in the middle of solid propellant grains and supporting bar for canular solid pro grain＇ s maximum stress decreases with pellant grains solid rocket motor, and the canular solid propellant the increase of shock response spectrum＇ s slope.
出处
《兵器装备工程学报》
CAS
2017年第9期21-25,35,共6页
Journal of Ordnance Equipment Engineering
关键词
冲击响应谱
有限元模型
受力
变形
shock response spectrum
finite element model
stress
deformation
