第二动力系统建模及性能分析  

Second power system modeling and performance analysis

作　　者：袁昌坤 刘娇 刘火星[1,2] 周志鸿 YUAN Changkun;LIU Jiao;LIU Huoxing;ZHOU Zhihong(Research Institute of Aero-Engine,Beihang University,Beijing 102206,China;National Key Laboratory of Science and Technology on Aero-Engine Aero-thermodynamics,Beihang University,Beijing 102206,China;Shenyang Aircraft Design and Research Institute,Aviation Industry Corporation of China,Limited,Shenyang 110035,China)

机构地区：[1]北京航空航天大学航空发动机研究院,北京102206 [2]北京航空航天大学航空发动机气动热力国家级重点实验室,北京102206 [3]中国航空工业集团有限公司沈阳飞机设计研究所,沈阳110035

出　　处：《航空动力学报》2024年第10期337-346,共10页Journal of Aerospace Power

摘　　要：为分析飞机第二动力系统的整体工作特性,采用部件级建模方法和多种群遗传算法对包含辅助动力装置(APU)、引气管路和空气涡轮起动机(ATS)在内的第二动力系统进行稳态建模。利用参考数据对比验证了仿真模型的可靠性,仿真结果误差小于3.5%。仿真计算得到引气管路的损失特性和APU、ATS的工作特性,针对整体系统开展仿真分析得到系统的温度特性、高度-速度特性、负载特性,结果表明引气管路的效率会随引气参数发生显著变化,第二动力系统各部件工作存在耦合关系,系统的当量功率等总体性能参数随高度增加而衰减,系统效率随飞行速度的增加而下降,研究结论为先进第二动力系统设计提供参考。In order to analyze the overall working characteristics of the second power system of aircraft,a component-level modeling method and multi-population genetic algorithm were used to model the second power system,which consisted of the auxiliary power unit(APU),exhaust pipe and air turbine starter(ATS).The reliability of the simulation model was verified by comparison with the reference data,and the error of the simulation results was less than 3.5%.The loss characteristics of the bleed air pipeline and the working characteristics of APU and ATS were obtained by simulation calculation.The temperature characteristics,altitude velocity characteristics and load characteristics of the system were obtained by simulation analysis for the whole system.The results showed that the efficiency of the bleed air pipeline changed significantly with the bleed air parameters,and there existed a coupling relationship between the components of the second power system.The overall performance parameters such as the equivalent power of the system decreased with the increase of altitude,and the efficiency of the system decreased with the increase of flight speed.The research conclusion can provide a reference for the design of advanced second power system.

关 键 词：辅助动力装置 空气涡轮起动机 模型与仿真 部件法 稳态特性 

分 类 号：V23[航空宇航科学与技术—航空宇航推进理论与工程]