光纤光栅传感网络的优化研究

Optimization of fiber Bragg grating sensor network

光纤光栅传感网络在大型复杂结构健康监测中具有广泛的应用前景,对光纤光栅传感网络优化的研究具有重要的意义。分析了结构健康监测中光纤传感网络优化布局和可靠性的研究现状,对光纤传感网络优化中的传感器优化布局与光纤传感网络可靠性两方面进行研究。通过对结构响应特性研究,提出了对结构静力响应参数监测时,传感器布局的一般规则。将概率计算引入光纤FBG传感网络不同拓扑结构,给出了基于不同拓扑结构的光纤传感网络形式及其可靠性数值分析。

Fiber Bragg Grating sensor network has a wide application prospect in the structural health monitoring for large and complex structures.The research on the optimization of fiber Bragg grating sensor network is important.Re-search status on the optimal placement and reliability of the fiber Bragg grating network and the static load identifica-tion are analyzed.And then,the optimal placement of sensors and reliability of the fiber Bragg grating network are studied.Through the analysis of structural response characteristics,the general rules of sensors placement in structural static response parameters monitoring is proposed.Probability calculation is introduced into the FBG sensor network reliability comparison of different topologies,and numerical analysis of the FBG sensor network reliability based on several simple topologies is given.