Abstract: An analysis model is developed to analyze the dynamic response of a variable thrust liquid propellant rocket engine with controllable injector and controllable Venturi. Digital simulation and linear analysis methods are used to study the step response, frequency response, stability, feedback control law and parameter optimization problem of the engine system. An experimental engine system is used to validate the analysis model and its results.

Key words: Controllable thrust rocket engine;Liquid propellant rocket engine;Dynamic response;Performance analysis

摘要： 本文利用数值方法和解析方法对带有可调喷注器和可调文氏管的变推力液体火箭发动机的响应特性进行了分析,讨论了影响此类发动机动态性能的主要因素.最后给出发动机参数的优化结果,并进行了实验验证.

关键词: 可调推力火箭发动机;液体推进剂火箭发动机;动态响应;性能分析