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为了研究在压力振荡由液体火箭发动机燃烧室传递到供应系统的过程中喷嘴所起的作用,从理论上分析了压力振荡由燃烧室到供应系统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供应系统的动态特性,对供应系统管路长度、燃烧室压强、喷嘴种类、喷嘴压降及喷嘴结构尺寸对燃烧室压力振荡引起供应系统压力振荡的影响进行了计算,得到了喷嘴以及工况参数在传递过程中的影响规律.
In order to study the role of the nozzle in the pressure oscillations delivered by the liquid rocket engine combustion chamber to the supply system, the transfer of pressure oscillation from the combustion chamber to the supply system through the nozzle was theoretically analyzed to deduce the transmission of the oscillation transfer process The dynamic characteristics of the supply system with various nozzles were discussed and the effects of supply system piping length, combustion chamber pressure, nozzle type, nozzle pressure drop and nozzle configuration on the pressure oscillations in the supply system caused by the pressure oscillations in the combustion chamber Calculated, the nozzle and the working conditions of the parameters in the transfer of the law of influence.