基于分布式光纤光栅碳纤维复合材料的飞机火警定位  

Airplane Fire Detection Using Distributed Fiber Optic Grating Carbon Fiber Composite Materials

作　　者：王献 伊重瑾 杨勇[2] WANG Xian;YI Chongjin;YANG Yong(Wuhan Fire Rescue Detachment,Wuhan 430021,China;不详)

机构地区：[1]武汉市消防救援支队,湖北武汉430021 [2]武汉理工大学光纤传感技术与网络国家工程研究中心,湖北武汉430070

出　　处：《武汉理工大学学报（信息与管理工程版）》2023年第6期862-867,共6页Journal of Wuhan University of Technology：Information & Management Engineering

基　　金：国家自然科学基金面上项目(62275205);湖北省经信厅揭榜挂帅项目(2022武汉001);武汉理工大学自主创新研究基金项目(223133001).

摘　　要：碳纤维复合材料具有轻量化、高强度、抗腐蚀、疲劳性能良好等优点而被广泛用于现代商用飞机结构的各个部件。当前对于这种新型材料飞机的火灾报警技术的研究仍处在发展阶段。其中一个关键技术是对火警区域的及时定位。通过在复合材料蒙皮内侧铺设光纤光栅阵列温度传感器,可以实时获得材料的温度场分布。实验采用6个等间距的温度传感器,在二维平面上实现了对单一火源的快速定位,定位精度可达5 mm,数据处理时间小于2 s。Carbon fiber composite materials are widely used in various components of modern commercial aircraft structures due to their advantages such as lightweight,high strength,corrosion resistance,and good fatigue performance.At present,the research on fire detection technology for aircraft made from these new materials is still in the developmental stage.One of the key technologies is the timely positioning of the fire alarm area.By embedding an array of fiber optic grating temperature sensors on the inner side of composite material skin,real-time temperature field distribution of the material can be obtained.In the experiment,six equidistant temperature sensors were used to realize the rapid positioning of a single fire source on a two-dimensional plane.The positioning accuracy can reach 5 mm,and the data processing time is less than 2 seconds.

关 键 词：光纤光栅 碳纤维 分布式光纤传感 温度传感 火灾探测 

分 类 号：X45[环境科学与工程—灾害防治]