| 摘要: |
| 以某型液氧 煤油高压补燃火箭发动机为模型,利用随机仿真(蒙特卡罗仿真)的方法,研究在主要结构参数和发动机入口参数随机变化时发动机稳态参数的分布规律。通过对该发动机非线性稳态特性方程组进行大量的仿真计算并对结果进行统计推断,获得了发动机稳态参数的概率密度分布特性。考虑的随机变化因素包括:系统结构参数与组件性能参数变化、推进剂供应系统入口压力变化和环境温度变化等。 |
| 关键词: 液体推进剂火箭发动机 仿真 蒙特卡罗法 稳态参数 分布 |
| DOI： |
| 分类号:V434.1 |
| 基金项目: |
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| Monte-Carlo simulation on static characteristics of a liquid oxygen/kerosene staged combustion cycle engine |
|
LIU Hong-jun
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Shaanxi Engine Design Inst.,Xi’an 710100,China
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| Abstract: |
| The statistic characteristics of the nonlinear static parameters of a liquid oxygen/kerosene staged combustion cycle engine are simulated by Monte-Carlo method. Various stochastic interference effects, including the input propellant temperature and pressure stochastic deviations, parts performance and structure parameters stochastic deviations, are considered, and the probability density distribution curves of the static parameters are obtained and the distribution types are checked. |
| Key words: Liquid propellant rocket engine Emulation Monte Carlo method Steady-state parameter Distribution |
