固体燃料冲压增程炮弹力学分析  

Dynamic Analysis of a Solid Fuel Ramjet Assisted Projectile

作　　者：孙俊[1] 武晓松[1] 夏强[1] 熊志平[1] 

机构地区：[1]南京理工大学机械工程学院,南京210094

出　　处：《弹道学报》2010年第1期49-52,64,共5页Journal of Ballistics

摘　　要：采用有限元法对某固体燃料冲压增程炮弹及其零部件在火炮膛内的结构完整性进行了系统分析.建立了三维有限元模型,研究了高过载下各部件受轴向、径向和切向惯性力综合作用下的应力、应变分布.结果表明,中心锥支座和堵盖处应力集中严重,在初步设计时必须重点考虑;增大支柱宽度和厚度有利于降低最大应力;其他零部件的应力、应变均能满足强度要求.该研究为固体燃料冲压增程炮弹的结构设计提供了有用依据.The finite element method(FEM) was used to analyze structural integrality of solid fuel ramjet(SFRJ) extended-range projectile and its components in chamber.The three-dimension FEM models of SFRJ extended-range projectile and its components were established.The stress and strain distributions of all the components affected by axial inertial force,radial inertial force and tangential inertial force together,were investigated.Results show that the stress around bearings of central cone and port cover concentr...

关 键 词：固体燃料 冲压发动机 增程炮弹 应力 应变 有限元法 

分 类 号：V435[航空宇航科学与技术—航空宇航推进理论与工程]