航空涡扇发动机全包线平衡流形建模

根据航空发动机相似工作状态原理和非线性系统平衡流形建模原理,提出一种适用于全飞行包线发动机性能仿真的换算平衡流形模型.首先,根据发动机各状态量的换算参数,对航空发动机平衡流形的概念进一步推广,提出换算平衡流形概念.然后,选取高压转子换算转速和飞行马赫数定义二维调度变量,对全包线发动机参量换算平衡流形进行拟合;并在换算参...

Whole flight envelop corrected equilibrium manifold modeling for a turbofan engine

Based on the aero-engine resemble theory and the nonlinear system equilibrium manifold theory,a corrected equilibrium manifold modeling method for aero-engine's simulation in whole flight envelop was put forward.First,according to the corrected variables,by extending the concept of equilibrium manifold,corrected equilibrium manifold was presented.Then,a two-dimension schedule variable was defined though compressor rotor's corrected speed and Mach number,and was used to fit the corrected equilibrium manifold...