考虑低燃温燃气发生器试验的弹射器内弹道性能预示  

Performance prediction of the interior trajectory in launch considering experiment of gas-generator in low-tempreture

作　　者：惠卫华[1] 鲍福廷[2] 刘旸[2] 

机构地区：[1]西北工业大学燃烧,热结构与内流场重点实验室,西安710072 [2]西北工业大学燃烧热,结构与内流场重点实验室,西安710072

出　　处：《固体火箭技术》2013年第6期715-719,共5页Journal of Solid Rocket Technology

基　　金：国家自然科学基金(51005179)

摘　　要：燃气发生器高压室试验获取的压强-时间数据是决定导弹弹射过程分析是否准确的第一手资料,考虑试验的弹器燃气分离过程,可避免纯理论计算引发的各种误差,是工程中急需的计算模式。基于动力学及运动学的复杂模型,在已有燃气发生器高压室试验数据基础上,建立低压室内弹道及运动学求解方程组,并编写了系统软件,实现了考虑试验数据下的弹器燃气分离过程分析,可进行多参数输入、多指标拉偏及可视化输出的全面内弹道分析。计算结果表明,与纯理论计算相比,误差小于2%,满足实际工程中需引入试验数据进行低压室内弹道计算,可用于燃气发生器设计领域。p-t data obtained from gas generator experiments is the first information about launch process exact analysis.Separa- tion process considering experiments can avoid error in pure theory analysis,which is the urgent calculating mode.Based on compli- cated models of dynamics and kinetics, solving equations about kinetics and interior trajectory of low-pressure chamber were built and this system software was compiled.This system realizes the separation process analysis considering experiments ,which can com- plete multi-parameter input, multi-target bias and visualization output. Result shows that the error is less than 2% compared with the- ory calculation, and simulation system accords with reality and can be used in field of gas generator design.

关 键 词：内弹道 燃气发生器 弹器水面分离 发射动力 试验 

分 类 号：V412[航空宇航科学与技术—航空宇航推进理论与工程]