| 基于准分布式光纤光栅传感器的机翼盒段载荷监测 |
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| 引用本文： | 芦吉云,梁大开,潘晓文.基于准分布式光纤光栅传感器的机翼盒段载荷监测[J].南京航空航天大学学报,2009,41(2). |
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| 作者姓名： | 芦吉云 梁大开 潘晓文 |
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| 作者单位： | 南京航空航天大学航空科技智能材料与结构重点实验室,南京,210016 |
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| 基金项目： | 国家自然科学基金，国家自然科学基金重点项目，江苏省汽车工程重点实验室开放基金 |
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| 摘 要： | 以某型飞机机翼盒段为研究对象,建立了盒段试件的有限元模型,分析外载荷和应变分布之间关系.采用波分复用形式构建了分布式光纤Bragg光栅传感网络测量盒段试件的应变,设计了网络中先纤传感嚣的排布方式,在此基础上研究了传感网络的温度补偿方法.运用波长监测方法对盒段结构承受的不同载荷进行了实验研究.结果表明,传感器的波长偏移与栽荷成线性关系,斜率由于加栽点位置的变化而不同.传感器的最大载荷监测灵敏度迭3.09 pm/N.
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| 关 键 词： | 先纤Bragg光栅传感器 载荷监测 波分复用 波长偏移 盒段 |
Load Measurement of Wing Box Based on Distributed Fiber Bragg Grating Sensors |
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| Lu Jiyun,Liang Dakai,Pan Xiaowen.Load Measurement of Wing Box Based on Distributed Fiber Bragg Grating Sensors[J].Journal of Nanjing University of Aeronautics & Astronautics,2009,41(2). |
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| Authors: | Lu Jiyun Liang Dakai Pan Xiaowen |
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| Institution: | The Aeronautical Science Key Laboratory for Smart Material and Structures;Nanjing University of Aeronautics & Astronautics;Nanjing;210016;China |
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| Abstract: | To analyze the relationship between the strain distribution and the load,a finite element model is built to simulate strain fields of a wing box.Distributed fiber Bragg grating(FBG) sensor network by adopting wavelength division multiplexing is used to measure the strain fields of wing box speciment.The arrangement of optical fiber sensors is designed and the temperature compensation of the sensor network is researched.By inspecting the wavelength,the load distribution of the wing box speciment is experimen... |
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| Keywords: | fiber Bragg grating sensor load measurement wavelength division multiplexing wavelength shaft wing box |
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