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

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