A new method for establishing aeroengine's State Variable Model (SVM)-fitting method is proposed.The SVMs of small perturbation about steady operating points of an engine are established by fitting nonlinear dynamic simulation data of its component-level models at the points.Then the SVMs of small perturbation about steady points at ground and in flight and also the SVM of large perturbation of ground acceleration for a turbofan engine are established by this method.Dynamic simulation results show that the SVMs established by fitting method have much higher accuracy than the SVMs established by the method of bias derivative.
冯正平,孙健国,黄金泉,蔡红武.一种建立航空发动机状态变量模型的新方法[J].航空动力学报,1998,13(4):435~438,463. Feng Zhengping, Sun Jianguo, Huang Jinquan, Cai Hongwu. A NEW METHOD FOR ESTABLISHING A STATE VARIABLE MODEL OF AEROENGINE[J]. Journal Of Aerospace Power,1998,13(4):435-438,463.复制