基于光纤光栅的装甲车油箱损伤识别方法  

Damage identification method of armored vehicle fuel tank based on fiber Bragg grating

作　　者：郑鹏飞 李成贵[1] 陈娟丽[2] 毕京红[2] 宋娜 武盼 ZHENG Pengfei;LI Chenggui;CHEN Juanli;BI Jinghong;SONG Na;WU Pan(School of Instrument Science and Opto-electronics Engineering,Beihang University,Beijing 100191,China;Beijing North Vehicle Group Corporation,Beijing 100072,China)

机构地区：[1]北京航空航天大学仪器科学与光电工程学院,北京100191 [2]北京北方车辆集团有限公司,北京100072

出　　处：《兵器装备工程学报》2022年第10期312-316,共5页Journal of Ordnance Equipment Engineering

摘　　要：将光纤布喇格光栅(fiber bragg grating, FBG)传感器粘贴在装甲车油箱表面多个位置,利用振动试验台以标准的5个行程的路谱使油箱发生随机振动,测量了出现裂缝损伤时FBG传感器的波长变化。实验结果表明,裂缝损伤出现时FBG传感器波长发生突变,损伤出现一段时间后FBG传感器的波长变化速率增大,与损伤未出现时相比有显著的变化,验证了提出的装甲车辆油箱损伤识别方法的可行性。The FBG sensors were pasted on the surface of armored vehicle fuel tank at multiple locations. The fuel tank was randomly vibrated with a standard 5 strokesroad spectrum by a vibration test bench. The wavelengths changes of the FBG sensors were measured before and after the occurrence of crack damage. The experimental results show that the wavelengths change abruptly when crack damage occurs. After the damage appeared for a period of time, the wavelength change rate was increased, which is significantly different from that before the damage occurred. The results verify the feasibility of the proposed method for damage identification of armored vehicle fuel tanks.

关 键 词：装甲车油箱 损伤识别 光纤光栅 应变测量 路谱 

分 类 号：TJ811[兵器科学与技术—武器系统与运用工程] TN253[电子电信—物理电子学]