球形变燃速发射药的燃气生成规律  

Gas Generation Rule about Spherical Variable Burning Rate Gun Propellant

作　　者：刘海情[1] 马中亮[1] 

机构地区：[1]中北大学化工与环境学院,山西太原030051

出　　处：《广州化工》2016年第5期29-31,共3页GuangZhou Chemical Industry

摘　　要：通过建立该类药型气体生成猛度与已燃发射药质量分数的理论表达式,对影响球形变燃速发射药的燃气生成规律进行理论分析。在服从几何燃烧定律的条件下,以球形变燃速发射药的初始药形尺寸以及内外层燃速比k、密度比y为基本变量,推导出球形变燃速发射药的表达式。在取值相同的情况下,根据药型和形状函数分别进行了计算和分析,得到了球形变燃速发射药的计算曲线。计算结果表明:适当调节发射药的初始药形尺寸及内外层药的燃速比k、密度比y的值时,可控制球形变燃速发射药的能量释放规律。当内外层燃烧比增加3倍时,气体生成猛度最大值增加约为2.2倍。To establish thevs. expression,the gas generation rule about spherical variable burning rate gun propellant was theoretically analyzed. Under the precondition of following the geometric combustion law,the equation describing vs.relation of this kind of spherical variable burning rate gun propellant were derived by using its initial geometric size,burning rate ratio and density ratio of internal and external layer as the basic variables. Under the same values,the geometrical model and shape function of propellant were calculated and analyzed by using the parameters,thecurve of spherical variable burning rate gun propellant were obtained. The calculated results showed that spherical variable burning rate gun propellant can control the energy release law by using its initial geometric size,burning- rate ratio and density ratio of internal and external layer. The brisance of gas generation increased by 2. 2 times when the inner and outer combustion speed ratio triplesd.

关 键 词：变燃速发射药 形状函数 燃气生成规律 燃烧特性 理论计算 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术] TQ562[化学工程—炸药化工]