Vectoring Nozzle Control Kinematics Modeling And Engine Control

This article researches on mathematical model of the control mechanism of the thrust-vectoring nozzle. Some reasonable simplification methods are used to build this model because the control mechanism is very complication. This model satisfies the real-time and precision requests of the control system.A new modeling method is applied to build the real-time mathematical model of the turbofan engine. In this model, the relations of the engine components' parameters can be expressed by analytical formula, which avoid the complex and time-consuming iterations in the components computing process.The thrust-vectoring nozzle control and integrated control of the engine and thrust-vectoring nozzle are researched in this paper. Both the PID control and the single neutral cell based self-adaptive control algorithm are adopted in the integrated control system. These two control methods are satisfied to minimize the effects on engine's working conditions as the nozzle is deflexed.