发动机性能的耦合优化计算

COUPLING OPTIMIZATION CALCULATION FOR AEROENGINE PERFORMANCE

本文根据发动机整机试车结果，在测量数据较少且缺乏发动机部件特性的情况下，通过耦合建模技术和最优化技术，推测出涡扇发动机主要部件（风扇、高压压气机、高低压涡轮）的特性，建立较准确的发动机稳态工作数学模型。

Coupling-Optimization Algorithm is comprised of coupling methods used in SPEY aeroengines and optimization method.This new method can be used to simulate the engine performance accurately on the basis of very limited engine test results even if its component characteristics are unknown.In addition,the component characteristics can also be inferred in the same time.This method has been used to simulate the performance of a turbofan engine and to infer its unknown component characteristics.The comparison of the results with the engine test data confirms the feasibility of the proposed method.