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[1]李晓瑾,常小庆.姿控发动机减压阀出口压力 偏差计算方法研究[J].火箭推进,2008,34(06):19-22.
　Li Xiaojin,Chang Xiaoqing.Research on outlet pressure deViation calculation of pressure reducing ValVe f6r attitude contr01 engine[J].Journal of Rocket Propulsion,2008,34(06):19-22.
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姿控发动机减压阀出口压力 偏差计算方法研究

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V] 卷: 34 期数: 2008年06期 页码: 19-22 栏目: 研究与设计 出版日期: 2008-12-30
Title:
Research on outlet pressure deViation calculation of pressure reducing ValVe f6r attitude contr01 engine
作者:
李晓瑾; 常小庆
西安航天动力研究所，陕西西安710100
Author(s):
Li Xiaojin; Chang Xiaoqing
Xi，an Aerospace Propulsion Institute，Xi，an 710100，China
关键词:
姿控发动机; 减压阀; 出口压力; 干扰因素
Keywords:
attitude control engine;  pressure reducing valVe; outlet pressure;  performnance influence factor
分类号:
V434
文献标志码:
A
摘要:
减压阀出口压力偏差对姿控发动机的性能有较大影响，通常所采用的小偏差分 析方法因不能有效分离非调整工况下工况偏离和其它干扰因素对发动机性能的相互影响，所 计算的减压阀出口压力范围误差较大。本文提出了将工作工况作为影响发动机性能的一项干 扰因素．基于姿控发动机系统静态模型，应用系统压力平衡原理计算发动机各工况下干扰因 素影响系数的方法．根据计算结果采用随机误差分析方法确定了减压阀的出口压力偏差范围， 所得结果符合发动机性能要求。
Abstract:
Outlet pressure deviation of a pressure reducing ValVe is an important factor“亿cting the performance of an attitude control engine。It is not properto calculate the outlet pressure by the small perturbation analysis method because this method doesn，t calculate the performance deviation under non—rated operation condotion efkctively．This paper pIesents a new method in performance calculation of the attitude control engine by employing the system pressure equilibrium theory based on the svstem static model．Simulation calculation is carried out in multi—steps．Based on simulation results，this paper adopts the stochastic ermr analysis method to calculate the outlet pressure of the reducer and the results meet the engine perfo邢ance．

参考文献/References:

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备注/Memo

收稿日期：2008—07—09；修回日期：2008—09—23。 作者简介：李晓瑾(1975一)，女，高级工程师，研究领域为液体火箭发动机系统技术。

更新日期/Last Update: 1900-01-01