Study of Stall in the Compressor Based on the Time-Freqency and Wavelet

LU Jian-wei; LI Jun

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Study of Stall in the Compressor Based on the Time-Freqency and Wavelet

更新时间：2026-07-07

- Study of Stall in the Compressor Based on the Time-Freqency and Wavelet
- Vol. 19, Issue 4, (2004)
- 作者机构：
  
  空军工程大学推进系统实验室,陕西,西安,710038
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2004
- 稿件说明：
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LU Jian-wei, LI Jun. Study of Stall in the Compressor Based on the Time-Freqency and Wavelet[J]. 2004, 19(4).
DOI：

LU Jian-wei, LI Jun. Study of Stall in the Compressor Based on the Time-Freqency and Wavelet[J]. 2004, 19(4). DOI：

摘要

采用时频—小波分析的方法

针对某型发动机的八级轴流压气机级间压力信号

提取失速先兆及发展信息。结果表明

在失速前的阶段

不同的频率段表现出不同的失速先兆成分;并检验了失速时刻信号的奇异性

最后确定了最先失速级。

Abstract

By means of the pressure signals of a certain research engine which has an eight axial stage compressor.A method of time-frequency analysis is presented in the paper.Information on the stall inception and development

which has some correlations with the onset-frequency and stall-frequency can be obtained during the engine operations.Therefore

the two main frequencies at the stall inception can be observed in the time-frequency plots.In order to identify the signal of the onset of stall accurately

this paper introduces the technique of the wavelet analysis

and provides an example of the 1st-6th compressor stage signals which are decomposed by Daubechies wavelets.The result indicates that different frequencies show different stall inception prior to the stage stall

and proves the singularity of the signal of stall.The stage of the first stall is ascertained by this method in the paper.

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Related Institution

中国航空发动机集团湖南动力机械研究所

College of Mechanical and Electrical Engineering, Nanjing University of Aeronautics and Astronautics

National Key Laboratory on Aero-Engines, Beijing University of Aeronautics and Astronautics

Laboratory of Propulsion System, The Engineering Institute, Airforce Engineering University

School of Energy Science and Engineering, Harbin Institute of Technology Energy

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