Research on fatigue crack monitoring experimental based on flexible eddy current sensor

LI Pei-yuan; HE Yu-ting; DU Jin-qiang; ZHANG Fei; JIAO Sheng-bo

doi:10.13873/J.1000-9787(2015)01-0024-04

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Research on fatigue crack monitoring experimental based on flexible eddy current sensor

更新时间：2025-09-11

- Research on fatigue crack monitoring experimental based on flexible eddy current sensor
- Vol. 34, Issue 1, Pages: 24-27+31(2015)
- 作者机构：
  
  空军工程大学航空航天工程学院
- 作者简介：
- 基金信息：
- DOI：10.13873/J.1000-9787(2015)01-0024-04
  CLC： V267;TP212
- Published：2015
- 稿件说明：
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[1]李培源,何宇廷,杜金强,张飞,焦胜博.基于柔性涡流传感器疲劳裂纹监测试验研究[J].传感器与微系统,2015,34(01):24-27+31.

LI Pei-yuan, HE Yu-ting, DU Jin-qiang, et al. Research on fatigue crack monitoring experimental based on flexible eddy current sensor[J]. 2015, 34(1): 24-27+31.
[1]李培源,何宇廷,杜金强,张飞,焦胜博.基于柔性涡流传感器疲劳裂纹监测试验研究[J].传感器与微系统,2015,34(01):24-27+31. DOI： 10.13873/J.1000-9787(2015)01-0024-04.

LI Pei-yuan, HE Yu-ting, DU Jin-qiang, et al. Research on fatigue crack monitoring experimental based on flexible eddy current sensor[J]. 2015, 34(1): 24-27+31. DOI： 10.13873/J.1000-9787(2015)01-0024-04.

摘要

结构健康监测对于保证飞行安全具有重要意义

底层涡流传感器是体系获取结构状态的重要组成。设计了柔性涡流传感器

搭建了预置裂纹监测系统

针对304奥氏体不锈钢、2A12—T4铝合金和TC4钛合金三种材料进行了预置裂纹监测试验。试验表明:对于电导率较小的304奥氏体不锈钢和TC4钛合金材料

最优监测频率增大;预置裂纹对涡流传感器跨阻抗幅值和相位影响不同

相对于幅值变化

相位变化较小;预置裂纹宽度增大会使得传感器跨阻抗变化率增大;柔性涡流传感器感应线圈实现了对裂纹长度的识别和定量监测。

Abstract

Structure health monitoring has great significance on ensuring safety of flight

eddy current sensor on bottom layer is the key device to obtain state of structurs. The eddy current sensor is designed

prese crack monitoring system is carried out to monitor material of 304 austenitic stainless steel

2A12—T4 aluminum alloy and TC4 titanium alloy. Experimental result shows that while the optimal frequency increases monitoring of 304 austenitic stainless steel and TC4 titanium alloy material

which the conductivity is lower than 2A12—T4 aluminum alloy material. preset crack has different effects on amplitude and phase of transimpedance

amplitude change is greater than phase change; transimpedance change rate of Sensor increases along with increasing of crack width;the flexible eddy current sensor achieves recognition and quantitative monitoring on crack length.

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Keywords

references

钛合金结构疲劳损伤监测实验研究 [J]. 李培源,杜金强,何宇廷,丁华,焦胜博. 传感器与微系统 . 2014(07)

矩形柔性涡流阵列传感器裂纹检测研究 [J]. 杜金强,何宇廷,李培源. 传感器与微系统 . 2014(05)

结构健康监控[M]. 国防工业出版社 , 袁慎芳, 2007

无损检测手册[M]. 机械工业出版社 , 李家伟,陈积懋主编, 2002

Automatic scanning with multi-frequency eddy current on multi-layered structures [J] . Barend van den Bos,Stefan Sahlén,Joakim Andersson. Aircraft Engineering and Aerospace Technology . 2003 (5)

Design of an eddy-current array probe for crack sizing in steam generator tubes [J] . Haoyu Huang,Nozomu Sakurai,Toshiyuki Takagi,Tetsuya Uchimoto. NDT and E International . 2003 (7)

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Related Author

LI Pei-yuan

DU Jin-qiang

HE Yu-ting

DING Hua

JIAO Sheng-bo

DING Hua

HE Yu-ting

Related Institution

College of Aeronautics and Astronautics Engineering,Air Force Engineering University

Center of Mechanics,Nanjing University of Aeronautics and Astronautics

College of Aerospace Engineering,Nanjing University of Aeronautics and Astronautics

南京航空航天大学航空宇航学院

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