疲劳环境对柔性涡流阵列传感器输出信号的影响规律研究  

Research on influence law of fatigue environment on output signal of flexible eddy current array sensor

作　　者：杜金强[1] 于海涛 张学兵 刘展[1] 武卫[1] DU Jinqiang;YU Haitao;ZHANG Xuebing;LIU Zhan;WU Wei(College of Aeronautics Engineering,Air Force Engineering University,Xi’an 710038,China;No 1 Military Representative Office of Equipment Department of PLA Air Force in Shenyang,Shenyang 110850,China;Unit 94136 of the PLA,Yinchuan 750025,China)

机构地区：[1]空军工程大学航空工程学院,陕西西安710038 [2]空装驻沈阳地区第一军事代表室,辽宁沈阳110850 [3]中国人民解放军94136部队,宁夏银川750025

出　　处：《传感器与微系统》2023年第6期51-53,共3页Transducer and Microsystem Technologies

基　　金：国家自然科学基金青年科学基金资助项目(51507186);陕西省自然科学基础研究计划青年人才项目(2016JQ5004);中国博士后科学基金面上资助项目(2016M592967)。

摘　　要：将柔性涡流阵列传感器与金属结构集成实施裂纹监测的过程中,结构会受到装配应力、工作应力等疲劳环境的作用,进而对裂纹监测过程带来影响。通过不同结构损伤状态和不同疲劳环境下的裂纹监测试验,研究了疲劳环境对柔性涡流阵列传感器输出信号的影响规律。研究表明:当被监测结构无裂纹时,疲劳环境对传感器输出影响很小;当被监测结构出现裂纹后,传感器输出信号会随着疲劳环境的变化出现明显波动,进而会对裂纹监测过程产生一定的影响。When the flexible eddy current array sensor is employed to monitor cracks in metallic structure,the metallic structure will suffer from fatigue environment,such as assembly stress and working stress,which will have an impact on the crack monitoring process.Crack monitoring experiments under different structural damage states and different fatigue environments are carried out,and the influence law of fatigue environment on output signal of flexible eddy current array sensor is studied.It is shown that the fatigue environment has little effect on output of the sensor when there is no crack in the monitored structure,and the output signal of the sensor will fluctuate obviously with the change of fatigue environment when there is a crack in the monitored structure.Fatigue environment will further has a certain impact on the crack monitoring process.

关 键 词：柔性涡流阵列传感器 裂纹监测 疲劳环境 影响规律 

分 类 号：TP212.1[自动化与计算机技术—检测技术与自动化装置] V215.6[自动化与计算机技术—控制科学与工程]