嵌金属丝串装双燃速药柱燃烧分析及发动机内弹道计算  

Analysis of combustion process of dual burning rate grain with series embedded metal wires and calculation of motor internal ballistics

作　　者：张明[1] 熊波[2] 涂四华[1] 曹晓利[1] 

机构地区：[1]中国航天科技集团公司四院四十一所,西安710025 [2]中国航天科技集团公司四院,西安710025

出　　处：《固体火箭技术》2016年第1期36-38,49,共4页Journal of Solid Rocket Technology

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.

关 键 词：固体火箭发动机 嵌金属丝 双燃速 内弹道 

分 类 号：V435[航空宇航科学与技术—航空宇航推进理论与工程]