喷嘴对供应系统到燃烧室压力振荡传递幅频特性的影响

基金项目: 国家自然科学基金(50406007)

Effect of injector on pressure oscillation amplitude-frequency characteristics from pipeline to combustion chamber

School of Astronautics, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

摘要: 从理论上分析了压力振荡由供应系统到燃烧室通过喷嘴的传递过程,推导了振荡传递过程的传递函数.讨论带有各种喷嘴的燃烧室的动态特性,对供应系统、燃烧室压强、喷嘴种类及喷嘴结构尺寸对供应系统压力振荡引起燃烧室压力振荡的影响进行了计算,得到了喷嘴在传递过程中的影响规律.
- 航空、航天推进系统 /
- 液体火箭发动机 /
- 喷嘴 /
- 传递函数 /
- 供应系统 /
- 燃烧室
Abstract: The process of pressure oscillation propagation from pipe-line to combustion chamber was theoretically researched in this paper;the transfer function was also deduced.The dynamic characteristic of combustion chamber linked with various injectors was discussed.The influence of pipe-line pressure,combustion chamber pressure,injector type and configuration on pressure oscillation propagation process of pipe-line was calculated,so the influence rule of injector on propagation process was gained.
- aerospace propulsion system /
- liquid rocket engine /
- injector /
- transfer function /
- pipe-line /
- combustion chamber

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