Application of N4SID in Aero-Engine

MA Yan; LI Zhi-shun; ZENG Qing fu

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Application of N4SID in Aero-Engine

更新时间：2026-07-07

- Application of N4SID in Aero-Engine
- Vol. 17, Issue 1, (2002)
- 作者机构：
  
  1. 西北工业大学航海工程学院,陕西,西安,710072
  2. 西北工业大学数据处理中心,陕西,西安,710072
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2002
- 稿件说明：
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MA Yan, LI Zhi-shun, ZENG Qing fu. Application of N4SID in Aero-Engine[J]. 2002, 17(1).
DOI：

MA Yan, LI Zhi-shun, ZENG Qing fu. Application of N4SID in Aero-Engine[J]. 2002, 17(1). DOI：

摘要

针对在现代航空发动机的自适应控制和故障监控领域建立系统动态模型的需要

本文研究了基于状态空间模型的数字子空间状态空间系统辨识 (N4SID)方法

并在某型双转子涡喷发动机非线性气动热力学模型的“小偏离”状态上进行了仿真实验。

Abstract

It is important to establish system dynamic model for many fields

especially in the fields of adaptive control and failure monitor of advanced aero engine.Many identification methods were used for this problem

including AR

and so on.Numerical algorithm for subspace state space system identification (N4SID) is proposed in recent years and applied to communications.It is based on state space model.N4SID is described in this paper.Though areo engine is a complex non linear system

at "little bias" state

the model is linear time invariable system.In this paper

N4SID is applied to identifying aero thermal model of a certain double spool turbojet aero engine at "little bias" state.Moreover

the result shows us that this algorithm is feasible.

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Related Author

CHEN Wei

CHENG Li

CHEN Xue-feng

WANG Bao-jian

ZHANG Xiao-li

SUI Yan-feng

WANG Jun

LV Meng-jun

Related Institution

Aeronautics and Astronautics Engineering College, Air Force Engineering University

State Key Laboratory for Manufacturing Systems Engineering, School of Mechanical Engineering, Xi'an Jiaotong University

Key Laboratory of Road Construction Technology and Equipment of Ministry of Education, School of Construction Machinery, Chang'an University

Shenyang Engine Design and Research Institute, Aviation Industry Corporation of China

Research Institute of Aeronautic Equipment, Air Force Equipment Academe

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