公开(公告)号：US20220121787A1

公开(公告)日：2022-04-21

申请号：US17312396

申请日：2021-01-07

申请人： NANJING UNIVERSITY OF AERONAUTICS AND ASTRONAUTICS

发明人： Feng LU ,  Zhihu LI ,  Jinquan HUANG ,  Wenxiang ZHOU ,  Xunkai WEI

IPC分类号： G06F30/17 ,  G06F111/10

摘要： The present invention discloses a method for component-level non-iterative construction of an airborne real-time model of a variable-cycle engine, which is proposed by using an existing nonlinear component-level dynamic general model of a variable-cycle engine in combination with a modeling idea of an aero-engine LPV model. In the original nonlinear component-level general model of the variable-cycle engine, components are connected together through a system of nonlinear co-working equations, and characteristic parameters of the respective components are obtained by iteratively solving the system of nonlinear co-working equations. In such a process of iteratively solving the system of nonlinear equations, much time is taken to operate the model. In the component-level non-iterative method for the variable-cycle engine, an LPV model replaces such a process of iteratively solving the system of nonlinear equations, and can significantly reduce the time taken by and increase the real-time performance of a model of the variable-cycle engine.