胶黏剂黏弹性对粘贴式FBG应变传递的影响

刘明尧; 季冬亮; 肖爽; 张志建; 易仁慧

doi:doi:10.3788/ope.20162406.1307

光学精密工程, 2016, 24 (6): 1307, 网络出版: 2016-08-18

胶黏剂黏弹性对粘贴式FBG应变传递的影响

Effect of adhesive viscoelasticity on strain transfer mechanism of bonded FBG

论文大纲

刘明尧季冬亮 ^*肖爽张志建易仁慧

作者单位

武汉理工大学机电工程学院，湖北武汉 430070

摘要

考虑到FBG传感器用于机床应变监测时，胶黏剂蠕变对静态载荷下FBG应变传递的影响，研究了胶黏剂线黏弹性对粘贴式FBG应变传递的影响规律。基于粘贴层为线黏弹性材料重新建立了粘贴式FBG应变传递模型，并将粘贴层简化为三参量固体模型，得到了粘贴式FBG传感器瞬时和准静态的应变传递关系。然后，通过理论和实验分析了粘贴长度、宽度、高度和中间层厚度对瞬时和准静态应变传递的影响。实验结果表明: 在恒定应力作用下，黏接剂蠕变会导致FBG的应变随时间而变化，当粘贴长度在30 mm以上时，FBG应变传递率随时间的变化在4%左右; 当粘贴长度为15 mm时，应变传递率变化接近7%。分析该结果得出: 适当增加粘贴长度，减小粘贴中间层厚度可以减小胶黏剂蠕变对应变传递的影响。该结论对基于粘贴式FBG的高精密测量具有指导意义。

Abstract

The effect law of adhesive visco-elasticity on bonded FBG strain transfer was studied in consideration of the effect of adhesive creep on FBG strain transfer under static load during the application of FBG sensor to machine tool strain monitoring. The bonded FBG strain transfer model was re-established for the linear visco-elastic material based on the bonding layer which is simplified as a three-parameter solid model, thus the instant and quasi-static strain transfer relation of the bonded FBG sensor was obtained. Then, the effects of the bonding length, width and height and thickness of interlayer on the instant and quasi-static strain transfer were analyzed through theory and experiment. The experimental results show that: the adhesive creep will lead to the variation of FBG strain with time under the constant stress action; when the bonding length is above 30 mm, the FBG strain transfer ratio change with time is about 4%; when the bonding length is 15 mm, the strain transfer ratio change is approximate 7%. The analysis implies that the appropriate increase of bonding length and decrease of the thickness of bonding interlayer can reduce the effect of adhesive creep on strain transfer. This conclusion has guiding significance for the high-precision measurement based on bonded FBG.

参考文献

[1] 姜德生,何伟.光纤光栅传感器的应用概况［J］.光电子·激光,2002,13(4): 420-430.

JIANG D SH, HE W. Review of applications for fiber Bragg grating sensors ［J］. Journal of Optoelectronics · Laser, 2002, 13(4): 420-430. (in Chinese)

[2] LEE J Y, RYU C Y, KOO B Y, et al.. In-flight health monitoring of a subscale wing using a fiber Bragg grating sensor system ［J］. Smart Mater. Struct., 2003, 12(1): 147-155.

[3] KIM K, LEE J M, HWANG Y. Determination of engineering strain distribution in a rotor blade with fiber Bragg grating array and a rotary optic coupler ［J］. Optics and Lasers in Engineering, 2008, 46(10): 758-762.

[4] MIZUTANI Y, GROVES R M. Multi-functional measurement using a single FBG sensors ［J］. Experimental Mechanics, 2011, 51(9): 1489-1498.

[5] LIU M Y, ZHANG ZH J, ZHOU Z D, et al.. A new method based on fiber Bragg grating sensor for the milling force measurement ［J］. Mechatronics, 2015,33: 22-29.

[6] ANSARI F, LIBO Y. Mechanics of bond and interface shear transfer in optical fiber sensors ［J］. Journal of Engineering Mechanics, 1998, 124(4): 385-394.

[7] 李东升,李宏男.埋入式封装的光纤光栅传感器应变传递分析［J］.力学学报,2005,37(4): 435-441.

LI D SH, LI H N. Strain transferring analysis of embeded fiber Bragg grating sensors ［J］.Chinese Journal of Theoretical and Applied Mechanics, 2005, 37(4): 435-441. (in Chinese)

[8] LI W Y, CHENG C C, LO Y L. Investigation of strain transmission of surface-bonded FBGs used as strain sensors ［J］. Sensors and Actuators A: Physical, 2009, 149(2): 201-207.

[9] 孙丽,岳川云,宋岩升.基片式光纤布拉格光栅传感器应变传递分析［J］.光电子·激光,2013,24(5): 849-854.

SUN L, YUE CH Y, SONG Y SH. Strain transfer analysis of substrate fiber Bragg grating sensor ［J］. Journal of Optoelectronics · Laser, 2013, 24(5): 849-854. (in Chinese)

[10] 李红，祝连庆，刘峰，等.裸光纤光栅表贴结构应变传递分析与实验研究［J］.仪器仪表学报，2014，35(8): 1744-1750.

LI H, ZHU L Q, LIU F, et al.. Strain transfer analysis and experimental research of surface-bonded bare FBG ［J］. Chinese Journal of Scientific Instrument, 2014,35(8): 1744-1750. (in Chinese)

[11] 田石柱，张国庆，王大鹏.表面式光纤布拉格光栅传感器应变传递机理的研究［J］.中国激光，2014，41(8): 0805005.

TIAN SH ZH, ZHANG G Q, WANG D P. Study on strain transfer mechanism of surface fiber Bragg grating sensor ［J］. Chinese Journal of Lasers, 2014, 41(8): 0805005. (in Chinese)

[12] 李天梁，谭跃钢，张翔，等.受弯件上粘贴型光纤布拉格光栅的应变传递规律［J］.光学精密工程，2015，23(5): 1254-1264.

LI T L, TAN Y G, ZHANG X, et al.. Strain transfer factors of passed FBG on bending part surface ［J］. Opt. Precision Eng., 2015, 23(5): 1254-1264. (in Chinese)

[13] 杨挺青.粘弹性力学［M］.武汉: 华中理工大学出版社，1990.

YANG T Q. Theory of Viscoelasticity ［M］. Wuhan: Huazhong University of Science and Technology Press, 1990. (in Chinese)

[14] 张军，杨军，张永祥.环氧树脂胶粘剂及其胶接件对接结构的蠕变性能研究［J］.中国胶粘剂，2014,23(9): 497-501.

ZHANG J, YANG J, ZHANG Y X. Study on creep property of epoxy resin adhesive and its glue joint docking structure ［J］. China Adhesives, 2014, 23(9): 497-501. (in Chinese)

刘明尧, 季冬亮, 肖爽, 张志建, 易仁慧. 胶黏剂黏弹性对粘贴式FBG应变传递的影响[J]. 光学精密工程, 2016, 24(6): 1307. LIU Ming-yao, JI Dong-liang, XIAO Shuang, ZHANG Zhi-jian, YI Ren-hui. Effect of adhesive viscoelasticity on strain transfer mechanism of bonded FBG[J]. Optics and Precision Engineering, 2016, 24(6): 1307.

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