固体火箭技术Issue(6)：809-813,818,6.DOI:10.7673/j.issn.1006-2793.2014.06.013
大型固体发动机燃烧室立式贮存研究
Research on vertical storage of large-scale SRM chamber
袁军 1任萍 2何高让2
作者信息
- 1. 海军装备部，西安 710025
- 2. 固体火箭发动机燃烧 热结构与内流场国防科技重点实验室，西安 710025
- 折叠
摘要
Abstract
In order to study the adaptability of large⁃scale solid rocket motor to the special vertical storage environment,FEM a⁃nalysis and experimental study were carried out. Based on the analysis of storage environment,considering the influence of curing and inner pressure on the vertical storage grain,calculation and analysis under combined loading were carried out. Calculation re⁃sults show that the gaps of fore and aft stress release boot become bigger in vertical storage state than that in the initial state.The gap of the fore stress release boot increase more than that of the aft one. The biggest axial displacement occurs on the opening position of the stress release boot.The biggest radial displacement of the grain occurs on the perforation.After filling gas in the motor,the de⁃formation of the grain,the equivalent stress/strain of the fore/aft grain interface on the root of the stress release boot and the equiva⁃lent stress/strain of the perforation grain increase with the applied inner pressure.However,the stress state of the fore/aft grain inter⁃face on the root of the stress release boot and the perforation grain transfer from three⁃orientation/two⁃orientation tensile to two⁃orien⁃tation compression,so appropriate inner pressure is advantageous to the long⁃term vertical storage of the motor.Finally,the vertical storage experiment was carried out and the deformation of the grain was measured. Comparison results show that the measured values agree well with the calculation values.关键词
大型固体发动机/药柱/立式贮存/应力/应变Key words
large-scale solid rocket motor/grain/vertical storage/stress/strain分类
航空航天引用本文复制引用
袁军,任萍,何高让..大型固体发动机燃烧室立式贮存研究[J].固体火箭技术,2014,(6):809-813,818,6.
