含细观缺陷固体推进剂非冲击点火性能研究进展
Progress in non-shock ignition performance of solid propellants with microscopic defects
张晓婧 1郁红陶1
作者信息
- 1. 西安工业大学 机电工程学院,西安 710021
- 折叠
摘要
含有细观缺陷(微裂纹、微孔洞)的固体推进剂在受到低压长脉冲的载荷时可能发生意外起爆事故,严重影响着固体推进剂的安全性.从固体推进剂的点火机理出发,综述了固体推进剂中细观缺陷观测实验与表征方法及非冲击点火试验;梳理了含细观缺陷固体推进剂非冲击点火数值模拟的相关研究手段及成果;并基于固体推进剂内细观缺陷类型,系统地总结了细观缺陷对固体推进剂非冲击点火性能的影响,对含细观缺陷固体推进剂非冲击点火性能的数值模拟研究及非冲击点火的试验设备发展作了展望.
Abstract
Solid propellants containing microscopic defects(microcracks and micropores)may be subject to accidental detonation when loaded by low-pressure and long-pulse,which seriously affects the safety of solid propellants.Starting from the ignition mechanism of solid propellants,the observation experiments and characterization methods of microscopic defects in solid propellants and the non-shock ignition tests are reviewed;the relevant research means and results of numerical simulation of non-shock ignition of solid propellants containing microscopic defects are sorted out;and based on the types of microscopic defects in solid propellants,the influence of microscopic defects on the non-shock ignition performance of solid propellants is systematically summed up,and the effect of the non-shock ignition performance on the non-shock ignition performance of solid propellants containing microscopic defects is summarized.Numerical simulation study of non-shock ignition performance of solid propellant with fine defects and the development of test equipment for non-shock ignition are also prospected.
关键词
固体推进剂/细观缺陷/表征方法/非冲击点火/数值模拟Key words
solid propellant/fine-scale defects/characterization methods/non-shock ignition/numerical simulation引用本文复制引用
出版年
2024
NETL
NSTL
万方数据