摘要
基于最小自由能原理,采用迭代法对小口径可燃药筒的能量示性数进行计算,用密闭爆发器和氧弹量热仪对计算的火药力、余容及爆热进行了验证,并运用最小自由能法与定容燃烧试验分析了含能纤维对小口径可燃药筒能量性能与燃烧性能的影响规律。结果表明:与试验测定结果相比,最小自由能法计算得到的火药力、余容与爆热的误差均小于5%,适用于可燃药筒的能量示性数的理论计算;含能纤维的加入可以有效提高可燃药筒的能量,有利于提高可燃药筒的燃烧速度,缩短燃烧时间,增加火药力,改善可燃药筒的燃尽性。
According to the least free-energy principle, the energy performance of small-bore combustible cartridge case was calculated by iteration method. Powder impetus, covolume and explosive heat of combustible cartridge case were verified by closed bomb test and oxygen bomb calorimeter. The effect of energetic fibers on energy performance and combustion performance of small-bore combustible cartridge case was studied. Results show that the mininum free-energy method is suitable for theoretical calculation of energy performance of combustible cartridge case. Compared with experimental results, the calculation error of the mininum free-energy method is less than 5%. With energetic fibers content increasing, the energy and burning rate of combustible cartridge case are boosted, burning-off time is shorted, and combustion completion is improved.
出处
《兵器材料科学与工程》
CAS
CSCD
北大核心
2014年第2期38-41,共4页
Ordnance Material Science and Engineering
基金
部委重点预研基金项目资助(973-613126)
关键词
可燃药筒
含能纤维
能量性能
燃烧性能
最小自由能法
combustible cartridge case
energetic fibers
energy performance
combustion performance
mininum free-energy method
