摘要
采用有限元分析方法,对某液体火箭发动机组合结构的不同状态进行了有限元建模与模态分析,对不同状态组合结构的模态进行了比较与研究,讨论了边界条件对模态的影响、组件模态与组合结构模态的关系等情况。
The natural frequencies and mode shapes of the liquid propellant rocket engine were investigated with finite element analysis method. The results of modal analysis of liquid propellant rocket engine with different boundary conditions were compared. The effect of boundary condition and the relation between component mode and assembly mode were found out.
出处
《试验技术与试验机》
2008年第2期24-27,共4页
Test Technology and Testing Machine
关键词
液体火箭发动机
模态分析
有限元方法
liquid propellant rocket engine
modal analysis
finite element method
