Reliable packaging of optical fiber Bragg grating sensors for carbon fiber composite wind turbine blades

被引：15

作者：

Zhu, Pingyu ^{[1
]}

Feng, Xuebin ^{[2
]}

Liu, Zheng ^{[1
]}

Huang, Mengjiao ^{[1
]}

Xie, Hongjie ^{[2
]}

Soto, Marcelo A. ^{[1
,3
]}

机构：

[1] Guangzhou Univ, Sch Mech & Elect Engn, Guangzhou 510060, Peoples R China

[2] Zhuzhou Times New Mat Technol Co LtD, Zhuzhou, Peoples R China

[3] Univ Tecn Federico Santa Maria, Dept Elect Engn, Valparaiso 2390123, Chile

来源：

COMPOSITES SCIENCE AND TECHNOLOGY | 2021年 / 213卷

基金：

国家重点研发计划;

关键词：

Carbon fibers; Fatigue; Sensing; Sandwich structures; Non-destructive testing; STRENGTH; SURFACE;

D O I：

10.1016/j.compscitech.2021.108933

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

A sensing module composed of a carbon fiber reinforced polymer (CFRP) packaging and an embedded fiber Bragg grating (FBG) sensor is proposed for strain monitoring of wind turbine blades. The sensing unit is designed and manufactured with the aim of maximizing the strain transfer from a CFRP wind blade to the FBG sensor. The performance of the packaged FBG sensors is experimentally investigated through exhaustive aging and fatigue tests. Then, a series of CFRP-packaged FBG sensors is used to monitor a full-scale 56.85 m-long wind blade during flapwise and edgewise fatigue tests over a few million dynamic strain cycles. Results demonstrate that the independent sensing modules provide efficient strain transfer, verifying a longer lifetime and more reliable measurements compared to conventional electrical strain gauges.

引用

页数：9

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