面向健康管理的民航发动机气路基准模型建立与验证  

Establishment and verification of a civil aircraft engine air path benchmark model for health management

作　　者：郭庆[1] 孙正日 樊俊峰 付宇[1] 左洪福[3] GUO Qing;SUN Zhengri;FAN Junfeng;FU Yu;ZUO Hongfu(College of Aeronautical Engineering,Civil Aviation University of China,Tianjin 300300,China;Power Plant Department,Southern Airlines Engineering Technology Branch,Guangzhou 510890,China;College of Civil Aviation,Nanjing University of Aeronautics and)

机构地区：[1]中国民航大学航空工程学院,天津300300 [2]南航工程技术分公司动力装置部,广东广州510890 [3]南京航空航天大学民航学院,江苏南京210016

出　　处：《推进技术》2025年第3期215-226,共12页Journal of Propulsion Technology

基　　金：国家自然科学基金(U2133202);中国民航大学中央高校基本科研项目(3122022046)。

摘　　要：针对民航发动机健康管理领域中,对气路性能诊断与预测的需求,提出了一种以通用模型为基础,结合试车数据修正的基准性能建模方法。使用大修后试车数据构建稳态性能模型,并通过Newton-Raphson算法求解发动机非线性方程组,以准确计算不同工况下的特性参数。为提升模型精度,引入了一种基于折合转速的二次修正因子函数,将传统的线性修正改进为多工况点的非线性修正,确保了目标发动机特性图的精确性。利用CFM56-7B型发动机的飞机通信寻址与报告系统(Airplane Commu⁃nication Addressing and Reporting System,ACARS)报文数据,验证了所建模型的准确性。结果表明,该方法在精度上优于传统的多元线性回归发动机基线模型。Aiming at the requirement of diagnosis and prediction of air path performance in the field of civil aircraft engine health management,a benchmark performance modeling method based on general model and test data modification was proposed.The steady-state performance model was constructed using the test data after overhaul,and the Newton-Raphson algorithm was used to solve the nonlinear equations of the engine to accurate⁃ly calculate the characteristic parameters under different working conditions.In order to improve the accuracy of the model,a quadratic correction factor function based on reduced speed is introduced,which improves the tradi⁃tional linear correction to the nonlinear correction at multiple operating conditions,and ensures the accuracy of the target engine characteristic diagram.The accuracy of the model is verified by using the Airplane Communica⁃tion Addressing and Reporting System(ACARS)system message data of CFM56-7B engine.The results show that the proposed method is superior to the traditional multivariate linear regression engine baseline model in ac⁃curacy.

关 键 词：民航发动机 健康管理 气路分析 基准建模 部件特性修正 

分 类 号：V263.5[航空宇航科学与技术—航空宇航制造工程]