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Research on Characteristics of Typical Gas Path Fault Components in Aircraft Engines
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Jingwei WANG1, Zhuang YU2, 3, Yuan YAO2, 3, Jia GENG2, 3
Journal of Vibration,Measurement and Diagnosis | 2025, 45(5) : 937 - 943
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Journal of Vibration,Measurement and Diagnosis | 2025, 45(5): 937-943
• PAPER •
Research on Characteristics of Typical Gas Path Fault Components in Aircraft Engines
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Jingwei WANG1, Zhuang YU2, 3, Yuan YAO2, 3, Jia GENG2, 3
Affiliations
  • 1.Shenyang Engine Research Institute of AVIC　Shenyang，110015，China
  • 2.School of Mechanical Engineering，Xi'an Jiaotong University　Xi'an，710049，China
  • 3.National Key Lab of Aerospace Power System and Plasma Technology　Xi'an，710049，China
Published: 2025-10-01 doi: 10.16450/j.cnki.issn.1004-6801.2025.05.011
Outline
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In response to unclear mechanisms in compressor fault diagnosis research，this article aims to reveal the variation law of component characteristic changes caused by blade wear，numerical simulation analysis method is used for studying the changes in component characteristics of blades under different degrees of wear. The results show that the degree of compressor performance degradation caused by blade surface wear is more significant than that caused by blade tip wear. With the increased speed，the degree of performance degradation becomes greater. The efficiency decay value caused by the increase of blade tip clearance shows a pattern of first decreasing and then increasing with the increase of pressure ratio. Near the working line of the compressor，the efficiency decay value is relatively stable with the change of pressure ratio，while the flow decay value increases with the increase of pressure ratio. After the increase of blade surface roughness，the decay values of efficiency and flow rate both increase with the increase of pressure ratio. Moreover，there is a decreasing trend in the decay values near stall pressure ratio. Near the working line，varying degrees of blade wear have a greater impact on flow rate than on efficiency. The results can provide a theoretical reference for the research of fault diagnosis methods for aviation engine gas paths.

air circuit wear failure  /  tip clearance  /  blade surface roughness  /  performance degradation
Jingwei WANG, Zhuang YU, Yuan YAO, Jia GENG. Research on Characteristics of Typical Gas Path Fault Components in Aircraft Engines[J]. Journal of Vibration,Measurement and Diagnosis, 2025 , 45 (5) : 937 -943 . DOI: 10.16450/j.cnki.issn.1004-6801.2025.05.011
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Article Info
doi: 10.16450/j.cnki.issn.1004-6801.2025.05.011
  • Receive Date：2023-05-25
  • Online Date：2026-03-27
  • Published：2025-10-01
Article Data
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History
  • Received：2023-05-25
  • Revised：2023-07-10
Funding
Affiliations
    1.Shenyang Engine Research Institute of AVIC　Shenyang，110015，China
    2.School of Mechanical Engineering，Xi'an Jiaotong University　Xi'an，710049，China
    3.National Key Lab of Aerospace Power System and Plasma Technology　Xi'an，710049，China
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https://castjournals.cast.org.cn/joweb/zdcsyzd/EN/10.16450/j.cnki.issn.1004-6801.2025.05.011
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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
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