液体火箭发动机性能可靠性的随机仿真方法  

Stochastic simulation method of performance reliability estimation on liquid propellant rocket engine

作　　者：王海燕[1] 刘红军[1] 

机构地区：[1]西安航天动力研究所,陕西西安710100

出　　处：《火箭推进》2006年第4期26-30,共5页Journal of Rocket Propulsion

摘　　要：分析了影响液体火箭发动机性能可靠性的随机扰动来源,提出了一种基于随机仿真的发动机性能可靠性的预估方法,并以某型号液氧/煤油补燃循环上面级发动机为研究对象,采用随机仿真方法对该发动机的性能可靠性进行计算,获得了该发动机主要性能参数的分布规律和在给定偏差范围内主要性能参数的可靠性。In this paper, the random disturbance factors that affect liquid propellant rocket engine performance are analyzed. An engine reliability estimation method that based on stochastic simulation is put forward. Using the stochastic simulation method, the reliability of a liquid oxygen/kerosene staged combustion cycle upstage engine is analyzed, and the regularity distribution of main performance parameters and the reliability of these parameters within certain deviation range are obtained.

关 键 词：液体火箭发动机 随机仿真 可靠性 

分 类 号：V434[航空宇航科学与技术—航空宇航推进理论与工程]