Research for online detection of aerodynamic instability while aero⁃engine test

Shenghong PENG; Zhiyou LIU; Zhilin ZHANG; Ming ZHONG; Yingwei TIAN; Xi CHENG

doi:10.13224/j.cnki.jasp.20210106

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Research for online detection of aerodynamic instability while aero⁃engine test

Aerothermodynamics and Aeroengine Design | 更新时间：2025-04-07

- Research for online detection of aerodynamic instability while aero⁃engine test
- Journal of Aerospace Power Vol. 36, Issue 9, Pages: 1880-1886(2021)
- 作者机构：
  
  1.南京航空航天大学能源与动力学院，南京 210016
  2.中国航空发动机集团有限公司四川燃气涡轮研究院高空模拟技术重点实验室，四川绵阳 621700
- 作者简介：
- 基金信息：
- DOI：10.13224/j.cnki.jasp.20210106
  CLC：
- 稿件说明：
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Shenghong PENG, Zhiyou LIU, Zhilin ZHANG, et al. Research for online detection of aerodynamic instability while aero⁃engine test[J]. Journal of Aerospace Power, 2021, 36(9): 1880-1886.
DOI：

Shenghong PENG, Zhiyou LIU, Zhilin ZHANG, et al. Research for online detection of aerodynamic instability while aero⁃engine test[J]. Journal of Aerospace Power, 2021, 36(9): 1880-1886. DOI： 10.13224/j.cnki.jasp.20210106.

摘要

针对航空发动机试验时缺乏有效安全监控措施的技术难题，开展航空发动机气动失稳在线监测试验技术研究。通过分析发动机试验失稳动态特征数据，设计基于时频⁃小波的气动失稳辨识算法，研制出具有国内自主知识产权的航空发动机气动失稳在线监测系统。结果表明：该系统能够准确、及时地检测到发动机失稳特征信号，辨识系统响应时间优于50 ms，工程实用性高，具备对发动机试验气动失稳在线预警能力。

Abstract

Based on the technological problem for lack of effective safety monitoring measures

the research for online detection of engine aerodynamic instability during aero⁃engine test was carried out.By analyzing engine instability characteristic data

the aerodynamic instability identification algorithm was designed based on time⁃frequency and wavelet analysis

and the online detection system of engine aerodynamic instability with one's own domestic intellectual property right was was developed.Result showed that the system can accurately and timely detect the engine aerodynamic instability characteristic signal

including excellent features such as

identification system response time was less 50 ms

and the project practicability was high.The research demonstrated the ability of online early warning to the engine test aerodynamic instability.

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references

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Related Institution

Laboratory of Aerospace Servo Actuation and Transmission，Beijing Institute of Precision Mechatronics and Controls

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Beijing Aerospace Propulsion Institute, China Aerospace Science and Technology Corporation

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College of Energy and Power Engineering,Nanjing University of Aeronautics and Astronautics

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