Rotor Blade Rubbing Fault Diagnosis Using Blade Tip Timing

WU Shuming; CHEN Xuefeng; YANG Zhibo

doi:10.16080/j.issn1671-833x.2022.20.024

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Rotor Blade Rubbing Fault Diagnosis Using Blade Tip Timing

更新时间：2025-10-30

- Rotor Blade Rubbing Fault Diagnosis Using Blade Tip Timing
- Aeronautical Manufacturing Technology Vol. 65, Issue 20, Pages: 24-33(2022)
- 作者机构：
  
  西安交通大学,西安,710049
- 作者简介：
- 基金信息：
- DOI：10.16080/j.issn1671-833x.2022.20.024
  CLC：
- Published：2022
- 稿件说明：
移动端阅览
吴淑明，陈雪峰，杨志勃. 转子叶片碰磨故障诊断的叶端定时方法[J]. 航空制造技术, 2022, 65(20): 24-33.

WU Shuming, CHEN Xuefeng, YANG Zhibo. Rotor Blade Rubbing Fault Diagnosis Using Blade Tip Timing[J]. Aeronautical Manufacturing Technology, 2022, 65(20): 24-33.
吴淑明，陈雪峰，杨志勃. 转子叶片碰磨故障诊断的叶端定时方法[J]. 航空制造技术, 2022, 65(20): 24-33. DOI： 10.16080/j.issn1671-833x.2022.20.024.

WU Shuming, CHEN Xuefeng, YANG Zhibo. Rotor Blade Rubbing Fault Diagnosis Using Blade Tip Timing[J]. Aeronautical Manufacturing Technology, 2022, 65(20): 24-33. DOI： 10.16080/j.issn1671-833x.2022.20.024.

摘要

叶端定时技术是近年来兴起的可用于整级叶盘健康监测的非接触式测量技术，为转子叶片振动的在线监测与故障诊断提供了可能。针对转子叶片常见的碰磨故障，分别建立了单叶片与整级叶盘动力学模型，分析了上述两种模型在碰磨故障下的叶尖动态响应；提出了受碰磨影响较为明显的振动指标；阐述了碰磨状态下传感器之间及叶片之间的叶端定时信号特征，通过增强稀疏分解算法对叶端定时欠采样信号进行了特征提取；提出了一套用于诊断碰磨故障的流程。通过自主搭建的碰磨试验台验证了提出方法的有效性。

Abstract

Blade tip timing technology is a non-contact measurement technology that is popular in recent years and can be used for the health monitoring of the entire stage

which provides the possibility for online monitoring and fault diagnosis of rotor blade vibration. Aiming at the common rubbing faults of rotor blades

the single-blade and whole-stage dynamic models were established respectively

and the dynamic responses of the blade tips under the rubbing faults of the above two models were analyzed. The characteristics of the blade tip timing signals of sensors and blades in the state of rubbing were expounded

and the feature extraction of the undersampling signal of the blade tip timing was carried out by the enhanced sparse decomposition algorithm. A set of procedures for diagnosing rubbing faults was proposed. The effectiveness of the proposed method is verified by a self-built rubbing test bench.

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Related Author

谢武杰

张蓉

GAO Chengwenbo

WANG Zengkun

YANG Zhibo

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CAO Jiahui

ZUO Hao

Related Institution

空军工程大学工程学院

Key Laboratory of Road Construction Technology & Equipment, Ministry of Education, Chang’an University

National Key Laboratory of Aerospace Power System and Plasma Technology, Xi’an Jiaotong University

National Key Lab of Aerospace Power System and Plasma Technology, Xi’an Jiaotong University

AECC Commercial Aircraft Engine Co., Ltd.

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