Home Journals Articles Updates About
CN
image
收藏切换
Diagnosis of clamp loosening faults in aero engine accessory pipes
收藏切换
PDF
Quankun LI1, 2, Chenshu WU1, 2, Yuling HUANG1, 2, Ruixian MA1, 2, Siji WANG1, 2, Xiaofei DING1, 3
Journal of Vibration Engineering | 2025, 38(6) : 1183 - 1189
Less
收藏切换
Journal of Vibration Engineering | 2025, 38(6): 1183-1189
Diagnosis of clamp loosening faults in aero engine accessory pipes
Full
Quankun LI1, 2, Chenshu WU1, 2, Yuling HUANG1, 2, Ruixian MA1, 2, Siji WANG1, 2, Xiaofei DING1, 3
Affiliations
  • 1.School of Power and Energy，Northwestern Polytechnical University，Xi’an 710129，China
  • 2.National Key Laboratory of Science and Technology on Advanced Light-Duty Gas-Turbine，Beijing 100190，China
  • 3.Shenyang Aero Engine Research Institute，Aero Engine Research Institute of China，Shenyang 110015，China
Published: 2025-06-10 doi: 10.16385/j.cnki.issn.1004-4523.2025.06.006
Outline
收藏切换

To effectively detect and localize vibration faults such as clamp loosening in aero engine accessory pipes, this paper proposes a novel diagnosis method based on dynamic responses of accessory pipes and transmissibility functions. The dynamic model and equation of the faulty pipe are established based on the principle of structural similarity and dynamic similarity, where the impact of the fault is simulated as an additional nonlinear load acting on related position of the pipe. Through the analysis of structural dynamic characteristics, the relationship between dynamic responses and fault occurrence and location is derived and analyzed, a fault diagnosis method based on transmissibility function is then proposed, and the operating process of the method is summarized as well. The accuracy and practicality of the proposed fault diagnosis method are verified through multiple experimental examples. Theoretical analysis and testing results show that the diagnostic method proposed in this paper can accurately detect and localize the existence and position of the clamp loosening fault. Meanwhile, this diagnostic method is suitable for single and multiple clamp loosening faults in aero engine accessory pipes.

aero engine  /  accessory pipe  /  clamp loosening  /  transmissibility function  /  fault diagnosis
Quankun LI, Chenshu WU, Yuling HUANG, Ruixian MA, Siji WANG, Xiaofei DING. Diagnosis of clamp loosening faults in aero engine accessory pipes[J]. Journal of Vibration Engineering, 2025 , 38 (6) : 1183 -1189 . DOI: 10.16385/j.cnki.issn.1004-4523.2025.06.006
Appendix
Less
Year 2025 volume 38 Issue 6
PDF
48
20
Cite this Article
BibTeX
Article Info
doi: 10.16385/j.cnki.issn.1004-4523.2025.06.006
  • Receive Date：2025-04-30
  • Online Date：2026-02-12
  • Published：2025-06-10
Article Data
Affiliations
History
  • Received：2025-04-30
  • Revised：2025-06-11
Funding
Affiliations
    1.School of Power and Energy，Northwestern Polytechnical University，Xi’an 710129，China
    2.National Key Laboratory of Science and Technology on Advanced Light-Duty Gas-Turbine，Beijing 100190，China
    3.Shenyang Aero Engine Research Institute，Aero Engine Research Institute of China，Shenyang 110015，China
References
Share
https://castjournals.cast.org.cn/joweb/zdgcxb/EN/10.16385/j.cnki.issn.1004-4523.2025.06.006
Share to
QR

Scan QR to access full text

Cite this article
BibTeX
Citations
表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
关闭全屏
  • BibTeX
  • EndNote
  • RefWorks
  • TxT
Links
Articles
Latest Articles
Most Read
Collections
Updates
Events
News
Multimedia
About
About Us
Contact
No. 86 Xueyuan South Road, Haidian District, Beijing
100081
010-62199257
qkjq@cast.org.cn

Copyright © 2025 China Association for Science and Technology. All rights reserved. For all open access content, the relevant licensing terms apply.
Sponsored by the Office of the Leading Group for Cybersecurity and Informatization of CAST, and supported by Science and Technology Review Publishing House