光纤光栅在全机静力试验应变测量中的应用研究  

Study on the Application of Fiber Bragg Grating in Strain Measurement of Full Scale Aircraft Static Test

作　　者：牟丹 张喜娟 陈锴 刘庆杰 MOU Dan;ZHANG Xijuan;CHEN Kai;LIU Qingjie(AVIC Chengdu Aircraft Industrial(Group)Co.,Ltd.,Chengdu 610092,Sichuan,China)

机构地区：[1]成都飞机工业(集团)有限责任公司,四川成都610092

出　　处：《工程与试验》2025年第1期34-37,共4页Engineering and Test

摘　　要：全机静力试验通常有上千应变测试通道,采用传统电阻应变计测量需要配置大量测试线缆,不仅会加大工作量,还导致测试系统的体积质量增加,影响飞机重心。光纤光栅传感器具有体积小、质量轻、抗电磁干扰等优点,大量应用于智能航空领域的高精度测量。为了推进光纤光栅传感技术在全机静力试验中的应用,本文基于全机静力试验,对光纤光栅传感器及电阻应变计进行对比研究。结果表明,光纤光栅传感器响应趋势与电阻应变计一致。建立有限元仿真模型对影响测试精度的因素进行分析,为提升光纤光栅传感器测量可靠性提供了依据。The full scale aircraft static test usually has thousands of strain test channels,and the traditional resistance strain gauge measurement method requires a large number of test cables,which will not only increase the workload,but also increase the weight of the test system and affect the center of gravity of the aircraft.The fiber Bragg grating(FBG)sensor has the advantages of small size,light weight,anti-electromagnetic interference,etc.,and is widely used in high-precision measurement in the field of intelligent aviation.In order to promote the application of FBG sensing technology in full scale aircraft static test,the comparison of FBG and resistance strain gauge based on full scale aircraft static test is studied in the paper.The results show that the FBG sensor has a good consistency,and the response trend is consistent with that of the resistance strain gauge.The finite element simulation model is established to analyze the factors affecting the test accuracy,so as to provide a basis for improving the measurement reliability of FBG sensor.

关 键 词：全机静力试验 光纤光栅 电阻应变计 应变测量 

分 类 号：V216.1[航空宇航科学与技术—航空宇航推进理论与工程]