弹用涡喷发动机全工况闭环仿真平台

为真实反映实际发动机系统的各部分相互影响,提出和建立了基于MATLAB环境的某弹用涡喷发动机及其供油调节系统的全工况闭环仿真平台。所用发动机模型采用了气动热力原理和神经网络相结合的建模方法,供油调节系统模型采用了参数识别和机理分析的建模方法。在该平台下,分析了膜片特性对发动机启动加速性能的影响。结果表明仿真平台具有较好的可信度,能够反映发动机及其供油调节系统真实的工作过程。 

Full Process Circled Simulation Flat of Missile Turbojet

Full process circled simulation flat of some missile turbojet and its oil supplied regulating system based on MATLAB is proposed for factually describing component interaction of engine system.The adopted engine model is built by methods of combing aerodynamics and thermodynamics theories with neural network,and oil supplied regulating system is modeled by methods of mechanism analysis and parameter identification.On the flat,we analyze the effect of diaphragm characteristic upon engine starting and accelerating performance.The results indicate that the circled simulation flat is of high reliability,and it can reflect the actual working process of the turbojet and its oil supplied regulating system.