| Citation: | FAN X H，GOU B Y，CHEN T，et al. Hole edge crack monitoring technology of flexible eddy current array sensor[J]. Journal of Beijing University of Aeronautics and Astronautics，2023，49（3）：726-734 （in Chinese） doi: 10.13700/j.bh.1001-5965.2021.0306
|
A flexible eddy current array sensor with double-side reinforcement is proposed for hole edge crack monitoring. First, with COMSOL finite element method, a finite element model of the sensor and the test piece was established, through which the effects of lift-off, permeability of the gasket and crack growth on the output signals of the sensor were analyzed. Then, sensors with and without reinforcement were prepared and the extrusion experiment and on-line fatigue crack monitoring experiment were carried out, followed by error analysis based on the difference between the experimental results and the simulation results. The results showed that with the increase of lift-off and permeability of the gasket, the output inductive voltage of the sensor increased gradually, while the sensitivity of the crack detection sensor decreased with the mounting lift-off. The sensor with reinforcement can work when the tightening torque was 63 N·m, while the sensor without reinforcement completely failed when the tightening torque was 50 N·m. The online crack monitoring experiments also verified that the sensor with reinforcement has quantitative crack monitoring ability, and the crack monitoring accuracy is consistent with the distance between the excitation coils, which is up to 1 mm. The difference between the experimental results and the simulation results was mainly introduced by the lift-off.
| [1] |
CHEN T, HE Y T, DU J Q. A high-sensitivity flexible eddy current array sensor for crack monitoring of welded structures under varying environment[J]. Sensors, 2018, 18(6): 1780. doi: 10.3390/s18061780
|
| [2] |
CHEN T, DU J Q, HE Y T. A structural crack monitoring gasket for aircraft bolt-jointed structures with temperature compensation[J]. Smart Materials and Structures, 2018, 27(11): 115004.
|
| [3] |
LIU M B, LI B B, LI J T, et al. Smart coating sensor applied in crack detection for aircraft[J]. Applied Mechanics and Materials, 2013, 330: 383-388.
|
| [4] |
ROACH D. Real time crack detection using mountable comparative vacuum monitoring sensors[J]. Smart Structures and Systems, 2009, 5(4): 317-328.
|
| [5] |
MAJUMDER M, GANGOPADHYAY T K, CHAKRABORTY A K, et al. Fibre bragg gratings in structural health monitoring—Present status and applications[J]. Sensors and Actuators A: Physical, 2008, 147(1): 150-164. doi: 10.1016/j.sna.2008.04.008
|
| [6] |
HUNT S R, HEBDEN I G. Validation of the eurofighter typhoon structural health and usage monitoring system[J]. Smart Materials and Structures, 2001, 10(3): 497.
|
| [7] |
WILLBERG C, DUCZEK S, PEREZ J M V, et al. Comparison of different higher order finite element schemes for the simulation of Lamb waves[J]. Computer Methods in Applied Mechanics and Engineering, 2012, 241-244: 246-261.
|
| [8] |
YAMAGUCHI T, UEDA M. An active sensor for monitoring bearing wear by means of an eddy current displacement sensor[J]. Measurement Science and Technology, 2006, 18(1): 311-317.
|
| [9] |
刘凯, 崔荣洪, 侯波, 等. PVD薄膜传感器裂纹检测概率测定与分析[J]. 材料工程, 2019, 40(9): 160-166. doi: 10.11868/j.issn.1001-4381.2018.000781
LIU K, CUI R H, HOU B, et al. Estimation and analysis of probability of PVD film sensor for crack detection[J]. Journal of Materials Engineering, 2019, 40(9): 160-166(in Chinese). doi: 10.11868/j.issn.1001-4381.2018.000781
|
| [10] |
GOLDFINE N J, WASHABAUGH A P, DEARLOVE J V, et al. Imposed ω-k magnetometer and dielectrometer applications[M]. Berlin: Springer, 1993.
|
| [11] |
SCHLICKER D E. Imaging of absolute electrical properties using electroquasistatic and magnetoquasistatic sensor arrays[D]. Cambridge: Massachusetts Institute of Technology, 2006.
|
| [12] |
RAKOW A, CHANG F K. A structural health monitoring fastener for tracking fatigue crack growth in bolted metallic joints[J]. Structural Health Monitoring, 2012, 11(3): 253-267. doi: 10.1177/1475921711429497
|
| [13] |
丁华, 焦胜博, 何宇廷, 等. 花萼状涡流阵列传感器裂纹扰动半解析模型构建[J]. 中国电机工程学报, 2014, 34(3): 495-502. doi: 10.13334/j.0258-8013.pcsee.2014.03.022
DING H, JIAO S B, HE Y T, et al. Semi-analytical crack perturbation model construction of rosette eddy current sensors[J]. Proceedings of the CSEE, 2014, 34(3): 495-502(in Chinese). doi: 10.13334/j.0258-8013.pcsee.2014.03.022
|
| [14] |
李培源, 何宇廷, 杜金强, 等. 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(1): 24-31.
LI P Y, HE Y T, DU J Q, et al. Research on fatigue crack monitoring experimental based on flexible eddy current sensor[J]. Transducer and Microsystem Technologies, 2015, 34(1): 24-31(in Chinese).
|
| [15] |
杜金强, 何宇廷, 李培源. 矩形柔性涡流阵列传感器裂纹检测研究[J]. 传感器与微系统, 2014, 33(5): 12-17. doi: 10.3969/j.issn.1000-9787.2014.05.004
DU J Q, HE Y T, LI P Y. Research on crack inspecting of rectangular flexible eddy current array sensor[J]. Transducer and Microsystem Technologies, 2014, 33(5): 12-17(in Chinese). doi: 10.3969/j.issn.1000-9787.2014.05.004
|
| [16] |
FAN X H, CHEN T, HE Y T, et al. An excitation coil layout method for improving the sensitivity of a rosette flexible eddy current array sensor[J]. Smart Materials and Structures, 2020, 29(1): 015020.
|
| [17] |
FAN X H, CHEN T, DU J Q, et al. Methods for improving sensitivity of crack quantitative monitoring of flexible eddy current array sensor[J]. Smart Materials and Structures, 2020, 29(8): 085033.
|
| [18] |
《航空制造工程手册》总编委会. 航空制造工程手册: 飞机装配[M]. 2版. 北京: 航空工业出版社, 2010: 391-392.
Aeronautical manufacturing engineering handbook editorial board. Aeronautical manufacturing engineering manual: Aircraft assembly[M]. 2nd ed. Beijing: Aviation Industry Press, 2010: 391-392(in Chinese).
|
Figures(19) / Tables(2)
Copyright © Journal of Beijing University of Aeronautics and Astronautics
Address: Editorial Department of Journal of Beijing University of Aeronautics and Astronautics, 37 Xueyuan Road, Haidian District, Beijing Post Code: 100191 Email: jbuaa@cqjj8.com
Supported by:
Beijing Renhe Information Technology Co., Ltd.
DownLoad:
