VCE身份证动态模型部件特性快速自动修正方法  

Fast automatic correction method for component characteristics of the identification dynamic model of VCE

作　　者：邹泽龙 黄金泉[1] 周鑫 周文祥[1] 鲁峰[1] ZOU Zelong;HUANG Jinquan;ZHOU Xin;ZHOU Wenxiang;LU Feng(College of Energy and Power Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)

机构地区：[1]南京航空航天大学能源与动力学院,南京210016

出　　处：《航空动力学报》2024年第9期497-512,共16页Journal of Aerospace Power

基　　金：中央高校基本科研业务费项目(NP2022418)。

摘　　要：为实现模型部件特性快速自动修正的工程需求,提出一种针对身份证模型部件特性的增强型自动修正策略,以稳态试车数据为输入,依据可测传感器组合,分析选取合适的特性修正系数组合,并耦合个体试车数据对共同工作方程进行设计,利用多点修模的双环策略快速自动修正部件特性,实现某型变循环发动机身份证模型的快速自动修正。采取逆流路扰动及Newton-Raphson迭代阻尼系数自调整法和特性图外插保护逻辑等方法提高算法的运行速率和稳定性。仿真结果表明:修正后模型输出最大误差小于0.1%,在2.10 GHz处理器的计算机上单、双涵道模式与常规部件级模型相比,耗时减少98.6%以上,所修正后模型可用于控制律设计以及为确定发动机当前真实状态提供参考。To realize the engineering requirement for fast automatic correction of model component characteristics,an enhanced automatic correction strategy of the identification model component characteristics was proposed.Taking steady-state test data as input,the designed correction strategy allowed to analyze and select suitable characteristic correction coefficient combinations based on sensor measurements.The proposed method also coupled individual rig test data of engine to design the equilibrium equations,and used the double-loop strategy of multi-point model correction to quickly and automatically correct component characteristics.Finally,the fast automatic correction of the identification model of a certain variable cycle engine was realized.The inverse flow path disturbance,damping coefficient self-adjustment method of Newton-Raphson method and characteristic map interpolation protection logic were adopted to improve the operation rate and stability of the algorithm.The simulation results showed that the maximum output error of the corrected model was less than 0.1%,and the consuming-time was reduced by more than 98.6%compared with the common component-level model,which was simulated in single and double bypass modes on a computation with 2.10 GHz processor.The corrected model can be used for control law design and also provide a reference for determining the current real state of the engine.

关 键 词：变循环发动机 增强型模型快速自动修正策略 多点修模的双环策略 Newton-Raphson迭代阻尼系数自调整 身份证动态模型 

分 类 号：V233.7[航空宇航科学与技术—航空宇航推进理论与工程]