固体推进剂药柱在振动载荷作用下的结构完整性分析  

An Analysis of Structure Integrity of Solid Propellant Grains Under Vibration Overload

作　　者：刘华[1] 李旭昌[1] 冯锦虎[1] 李敏剑[1] 

机构地区：[1]空军工程大学,陕西三原713800

出　　处：《战术导弹技术》2009年第5期10-14,共5页Tactical Missile Technology

摘　　要：采用有限元法对固体推进剂药柱在不同振动载荷作用下的应力、应变和位移场进行三维线性粘弹性分析,得出了药柱在横向、轴向、横向和轴向耦合3种载荷作用情况下的变形结果,并将结果进行了对比,对比结果显示:载荷耦合作用效果是横向和轴向载荷单独作用效果的叠加.通过数值模拟,为固体火箭发动机的结构可靠性设计提供参考.The finite element method is used to carry out the three-dimensional linear viscoelasticity analysis of stress, strain and displacement field for solid propellant grains under different vibration overloads, so as to obtain the deformation results of propellant grains under axial, transverse and axial-transverse coupling overload, then make a compare between the results, which shows that the effect under coupling overload is equal to the sum of the effect under separate overload. Numerical analysis will be helpful to the design of structure reliability.

关 键 词：固体推进剂药柱 振动载荷 粘弹性 有限元法 

分 类 号：TJ760.332[兵器科学与技术—武器系统与运用工程]