中国机械工程2016，Vol.27Issue(24)：3368-3374,3375,8.DOI:10.3969/j.issn.1004-132X.2016.24.018
表面粘贴式光纤光栅传感器的动应变传递规律
Dynamic Strain Transfer Laws of Surface Bonded FBGSs
摘要
Abstract
Firstly,as structure under sinusoidal load for example,a surface bonded FBG dynamic strain transfer model was established through theoretical analysis,and the influencing parameters were determined.Then,the influences of dynamic strain transfer parameters were analysed by using the finite element simulation method.Finally,the results of theory and simulation were verified by experimental analyses.The results of theory and experiments show that the vibration frequency,the length of glue,the thickness of glue and middle layer thickness of glue have maj or impacts on FBGS dynamic strain transfer rate.The width of glue has minor effects on the transfer rate.When the vibra-tion frequency is far less than the structure natural frequency,the dynamic strain transfer rate re-mains the same through different frequencies and the experimental value is as 92%.Before the vibra-tion frequency achieves the natural frequency,the transfer rate increases very slowly with the increa-ses of vibration frequencies.When the length of glue is more than 2 times of FBG length,the transfer rate will be obviously better than the rate of shorter,the experimental value is as 92%.关键词
光纤光栅传感器/动应变传递/动载荷/有限元仿真法/振动频率Key words
fiber bragg grating sensor(FBGS)/dynamic strain transfer/dynamic load/finite ele-ment simulation method/vibration frequency分类
信息技术与安全科学引用本文复制引用
易仁慧,周祖德,刘明尧,季冬亮..表面粘贴式光纤光栅传感器的动应变传递规律[J].中国机械工程,2016,27(24):3368-3374,3375,8.基金项目
国家自然科学基金资助项目(51375359) （51375359）
武汉理工大学自主创新研究基金资助项目(155204006) （155204006）
