异常检测
离群值
结构健康监测
材料科学
异常(物理)
应变计
瞬态(计算机编程)
曲面(拓扑)
光纤
声学
光学
计算机科学
复合材料
人工智能
数学
物理
几何学
凝聚态物理
操作系统
作者
Thomas M.J. Gebhart,Max Seeberg,Hakan Çelik,Rainer Dahlmann,Christian Hopmann
出处
期刊:Measurement
[Elsevier]
日期:2024-01-11
卷期号:226: 114133-114133
被引量:5
标识
DOI:10.1016/j.measurement.2024.114133
摘要
To analyse the applicability of fibre optic measurements as a measurement method for structural health monitoring, fibre-optic sensors are placed on the vessel surface. The influence of the surface profile of the vessel on the measurement result is analysed by correlating the 3D scanned surface and measurement results. One outcome is that the measurement is substantially influenced by the surface topography. The surface height can be directly correlated to the strain magnitude, which is also verified by analytical calculations. Outliers and invalid values can be traced back to surface-related influences on the sensor fibre. For the outlier detection, a novel method is presented, which is based on quantitative evaluation criteria and inductive reasoning and enables transient cycle- by-cycle outlier detection adapted to the load case. Based on the results an estimate for the expanded measurement uncertainty is given for of the measurement chain consisting of vessel, adhesive and sensor fibre.
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