摘要
利用已建立的圆环状多层发射药燃烧模型得到多层发射药的理论燃烧猛度Г-ψ曲线，并通过密闭爆发器实验测试了不同结构的多层发射药的静态燃烧性能，讨论了结构对多层发射药燃烧渐增性的影响。结果表明，火药燃去量处于0．2～0．8时，实验L-B曲线与理论Г-ψ曲线之间有着相同的变化趋势；过大（或过小）的内外层燃速比K和缓燃层厚度比X均对多层发射药的燃烧渐增性不利，只有在合理的范围里选择，多层发射药的燃烧渐增性才会呈现增强的趋势；随着药片宽厚比W的增大，多层发射药表现出恒面燃烧的特征，燃烧渐增性变佳。
The influence of the structures on the progressive burning of multilayer gun propellant disk was discussed and the theoretical Г-ψ curves were obtained by a established combustion model of the multilayer gun propellant disk, and the static burning behaviors of the multilayer propellant with diffrerent structures were studied by the closed bomb test. The results show that the trends of multilayer gun propellant experimental curves are similar to the trends of multilayer gun propellant theoretical curves while propellant burned mass was in 0.2- 0.8; too large （or too small） K and X has a negative impact on progressive burning of the multilayer propellant, and only within reasonable choice, will the progressive burning of the multilayer propellant get better; The characteristic of constant surface burning is present and progressive burning of the multilayer propellant becomes better with the width to its intial thickness W rising.
出处
《火炸药学报》
EI
CAS
CSCD
北大核心
2010年第1期75-78,共4页
Chinese Journal of Explosives & Propellants
关键词
物理化学
多层发射药
燃气生成猛度
燃烧渐增性
密闭爆发器
physical chemistry
multilayer gun propellant
combustion gas generation brisance
progressiveburning
closed bomb
