航空学报 > 2007, Vol. 28 Issue (3): 531-534

涡轮发动机平衡流形展开模型辨识方法研究

隋岩峰,于达仁   

  1. 哈尔滨工业大学 能源学院
  • 收稿日期:2006-04-04 修回日期:2006-10-16 出版日期:2007-05-10 发布日期:2007-05-10
  • 通讯作者: 隋岩峰

Identification of Expansion Model Based on Equilibrium Manifold of Turbojet Engine

SUI Yan-feng,YU Da-ren   

  1. School of Energy Science and Engineering, Harbin Institute of Technology
  • Received:2006-04-04 Revised:2006-10-16 Online:2007-05-10 Published:2007-05-10
  • Contact: SUI Yanfeng

摘要:

根据涡轮发动机平衡流形展开模型的特点提出了两步建模方法。将复杂非线性建模转化为静态参数拟合和带约束条件的动态参数最小二乘辨识,根据单轴涡喷发动机气动热力模型辨识算例证明了方法的有效性。

关键词: 涡轮发动机, 平衡流形, 辨识, 最小二乘

Abstract:

Modeling method with two step is proposed according to the characteristic of the expansion model. Modeling of nonlinear system is translated to static parameter fitting and dynamic identification with leastsquare method, and the validation of the method is demonstrated by identification of turbojet engine with one shaft.

Key words: turbojet , engine,  , equilibrium , manifold,  , identification,  , least-square

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