固体火箭技术Issue(3)：351-355,5.DOI:10.7673/j.issn.1006-2793.2015.03.010
固体发动机低温点火条件下药柱结构完整性分析
Structural integrity analysis on grains of solid rocket motor at low temperature ignition
刘中兵 1周艳青 1张兵2
作者信息
- 1. 中国航天科技集团公司四院四十一所，西安 710025
- 2. 中国航天科技集团公司四院，西安 710025
- 折叠
摘要
Abstract
Using three⁃dimensional linear elasticity and viscoelasticity models,the calculation analysis of structural integrity for solid rocket motor grains at low temperature and ignition pressurization loading was completed. The influences of propellant elastic modulus E,Poisson ratio μ,m number ( the ratio of outer diameter to inner diameter) of grain on calculation results were studied. The results show that grain perforation surface is the most dangerous position at low temperature ignition pressurization. The maxi⁃mums of equivalent strain induced by low temperature and ignition pressurization loading are added to each other at grain perforation surface.The m number of grain has important influence on the strain distribution induced by low temperature and ignition pressuriza⁃tion loading.关键词
固体火箭发动机/推进剂药柱/低温点火/结构完整性/粘弹性Key words
solid rocket motor/propellant grain/low temperature ignition/structural integrity/viscoelasticity分类
航空航天引用本文复制引用
刘中兵,周艳青,张兵..固体发动机低温点火条件下药柱结构完整性分析[J].固体火箭技术,2015,(3):351-355,5.
