摘要
采用有限元法,对含人工脱粘层的某固体火箭发动机药柱进行了线粘弹性分析,研究了在工作内压载荷下人工脱粘层和材料泊松比对药柱应力应变的影响。分析结果表明,增加人工脱粘层面积可导致药柱头部应力增大,增加泊松比也会加大药柱应力。
The analysis of the grain on the viscoelastic propellant in some solid rocket engine was presented by the finite element method in this paper. The stress and strain of the grain affected by manmade debonding and Poisson ratio under the inner working pressure were researched. The results showed that the increase of the area of the manmade debonding and the Poisson's value could lead the increase of the propellant's stress.
出处
《上海航天》
2004年第4期44-47,共4页
Aerospace Shanghai
关键词
固体火箭发动机
药柱
有限元分析
人工脱粘层
泊松比
应力
应变
Solid rocket engine
Grain
Finite element method
Manmade debonding
Poisson's ratio
Stress
Strain
