中国空间科学技术

中国空间科学技术

• •    

干扰因素对液体火箭发动机性能的影响

沈赤兵,吴建军,陈启智   

  1. 国防科技大学
  • 发布日期:1997-04-25

EFFECTS OF INTERFERING FACTORS ON PERFORMANCE OF LIQUID ROCKET ENGINE

Shen Chibing Wu Jianjun Chen Qizhi (National University of Defense Technology, Changsha 410073)   

  • Online:1997-04-25
  • Supported by:
    国防科技大学试验技术研究资金

被引次数

7

摘要： 给出并改进了描述液体火箭发动机稳态工况的非线性数学模型；用修正的Ｇａｕｓｓ－Ｎｅｗｔｏｎ法求解各性能参数，分析了每个干扰因素分别对液体火箭发动机参数的影响，用非线性模型和小偏差方法对比分析了两个干扰因素分别和共同对发动机参数的影响；所得结论可用于发动机试验结果分析、发动机可靠性分析、发动机故障分析，也可用于揭示发动机参数随各种干扰因素的变化规律

关键词: 液体推进剂火箭, 发动机, 稳态工况, 非线性方程, 干扰, 分析

Abstract: An improved nonlinear mathematical model for the steady state operation of a liquid rocket engine is presented By using this model, the effects of each interfering factor on the parameters of liquid rocket engine are computed and analyzed.The comparative analysis is carried out for the effects of the interfering factors on the engine parameters by using nonlinear model and linear method The results obtained can be used for the ana lysis of rocket engine test results, the reliability analysis and the fault analysis, and also for bringing to light the variation of the engine parameters with various interfering factors.