基于QAR数据的航空发动机热力学模型构建方法  

Construction method of aero-engine thermodynamic model based on QAR data

作　　者：马超[1] 赵树杰 徐建新[1] 巴翔 MA Chao;ZHAO Shujie;XU Jianxin;BA Xiang(College of Aeronautical Engineering,Civil Aviation University of China,Tianjin 300300,China;Henan Branch,China Southern Airlines Company Limited,Zhengzhou 450000,China)

机构地区：[1]中国民航大学航空工程学院,天津300300 [2]中国南方航空股份有限公司河南分公司,郑州450000

出　　处：《航空动力学报》2023年第11期2591-2600,共10页Journal of Aerospace Power

基　　金：中央高校基本科研业务费项目(3122019085)。

摘　　要：为了能够建立更加接近真实运行环境的航空发动机热力学模型,提出了一种依据航空发动机运行QAR(quick access recorder)数据的热力学模型构建方法。依据发动机传统设计点热力学方程,利用最小二乘辨识原理,修正25站位压强求解方程,获得干空气热力学模型;根据混合气体熵值的可加性,构建了降雨工况下的湿空气热力学模型;最后结合遗传算法优化的粒子群算法,依据QAR数据进行干空气和湿空气热力学模型参数计算与验证。结果表明该热力学模型计算得到的干空气和湿空气热力学参数与QAR数据间最大误差小于13%,较为接近实际绝热参数。证实了基于QAR数据构建发动机热力学模型的可行性和该热力学模型构建方法求解热力参数的有效性。In order to establish a thermodynamic model of aero-engine in an approximate real operating environment,a thermodynamic model construction method based on QAR(quick access recorder)data of aero-engine operation was proposed.According to the thermodynamic equation of the traditional design point of the engine,and using the least square identification principle,the equation for solving the pressure at the 25 station was corrected,and the dry air thermodynamic model was obtained;according to the additivity of the entropy value of the mixed gas,a thermodynamic model of wet air under rainfall conditions was constructed;finally,combined with particle swarm optimization optimized by genetic algorithm,the parameters of dry air and wet air thermodynamic model were calculated and verified according to QAR data.The results showed that the maximum error between the dry air and wet air thermodynamic parameters calculated by the thermodynamic model and the QAR data was less than 13%,which was closer to the actual adiabatic parameters.The feasibility of constructing a thermodynamic model of an engine based on QAR data and the effectiveness of the thermodynamic model construction method for solving thermodynamic parameters were proved.

关 键 词：热力学模型 QAR数据 最小二乘辨识 粒子群 遗传算法 

分 类 号：V231.11[航空宇航科学与技术—航空宇航推进理论与工程]