FBG Sensors and Signal-Based Detection Method for Failure Detection of an Offshore Wind Turbine Grouted Connection

被引：3

作者：

Mueller, Nathalie ^{[1
]}

Kraemer, Peter ^{[2
]}

Leduc, Dominique ^{[3
]}

Schoefs, Franck ^{[3
]}

机构：

[1] Fraunhofer Inst Windenergie & Energiesyst Tech IW, Bremerhaven, Germany

[2] Univ Siegen, Sch Sci & Technol, Dept Mech Engn, Siegen, Germany

[3] Univ Nantes, Res Inst Civil Engn & Mech GeM, UMR CNRS 6183, Nantes, France

来源：

INTERNATIONAL JOURNAL OF OFFSHORE AND POLAR ENGINEERING | 2019年 / 29卷 / 01期

关键词：

Structural health monitoring; offshore wind; grouted connection; fiber Bragg grating; Wigner-Ville distribution; energy spectral density;

D O I：

10.17736/ijope.2019.mm20

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

A fatigue test has been conducted on a large-scale offshore wind turbine grouted connection specimen at the Leibniz University of Hannover. For detecting damages in the grouted joint, a structural health monitoring (SHM) system based on fiber optic sensor-type fiber Bragg grating (FBG) has been implemented. By extracting the features of the FBG signal responses using the Wigner-Ville distribution (WVD) and one of its marginal properties, the energy spectral density (ESD), it is possible to detect the occurrence and the global severity of the damage. Some information about the local severity of the damage has also been obtained.

引用

页码：1 / 7

页数：7

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