摘要
针对嵌金属丝、串装双燃速装药燃烧过程进行了分析,得到了燃面变化的基本规律。基于PRO/E软件,实现了嵌多根金属丝、双燃速推进剂串装药柱复杂燃面的精确推移计算。为精确计算发动机复杂的内弹道,建立了内弹道微分方程组,并通过Runge-Kutta法进行了求解。结果表明,该数值计算方法计算结果与实测数据吻合度较高,计算方法精确可靠,满足工程预示要求。
The combustion process of dual burning rate grain with series embedded metal wires was analysed and the basic law of combustion area variation was obtained. Based on the PRO / E,the complex burning area of the grain was calculated precisely. To calculate the internal ballistics for the special structure of the motor,a group of differential equation was established and solved by the Runge-Kutta method. The calculation results agree with test data very well. The calculation method of the complex internal ballistics is precise and reliable,which could meet the engineering requirements.
出处
《固体火箭技术》
EI
CAS
CSCD
北大核心
2016年第1期36-38,49,共4页
Journal of Solid Rocket Technology
关键词
固体火箭发动机
嵌金属丝
双燃速
内弹道
SRM
embedded metal wires
dual burning-rates
internal ballistics
