航空发动机涡轮叶片近表面缺陷的涡流检测

详细信息

Eddy current testing of near-surface defect in turbine blade of aero-engine

摘要: 针对某型航空发动机涡轮叶片排气边的近表面冷隔缺陷,设计了一种能够满足工程应用的叶片排气边涡流检测专用探头。分析检测过程中的异常信号特征,可有效识别缺陷信号,实现叶片排气边近表面冷隔缺陷的早期诊断。该方法可供同行参考。
- 涡轮工作叶片 /
- 近表面 /
- 缺陷 /
- 涡流检测 /
- 专用探头
Abstract: Aiming at the near-surface clod shut defects in turbine blade of aero-engine, a special probe for blade eddy current detection which can meet the engineering application is designed. Analyzing the abnormal signal characteristics in the detection process can effectively identify the defect signal and realize the early diagnosis of the cold shut defect on the near-surface in blade exhaust edge. The relevant methods can be used as a reference for peers.
- turbine blade /
- near-surface /
- defect /
- eddy current testing /
- dedicated probe

[1]	关玉璞, 陈伟,高德平.航空发动机叶片外物损伤研究现状[J].航空学报,2007,28(4):851-857.
[2]	于霞. 飞机发动机叶片缺陷的电磁检测技术研究[D].北京:北京理工大学,2014.
[3]	宋凯, 王冲,张丽攀,等.航空发动机涡轮叶片裂纹的自动仿形涡流检测系统设计及试验研究[J].航空制造技术,2018,61(19):45-49,57.
[4]	马海全, 甘勇,张卫,等.高温合金叶片常见缺陷的射线检测[J].失效分析与预防,2020,15(3):159-163,178.
[5]	徐亚亚, 李泽,刘兴勇.某机高压涡轮叶片荧光渗透检测工艺改进[J].无损检测,2015,37(9):69-71.
[6]	徐可北, 周俊华.涡流检测[M].北京:机械工业出版社,2004.