Reliable packaging of optical fiber Bragg grating sensors for carbon fiber composite wind turbine blades
Reliable packaging of optical fiber Bragg grating sensors for carbon fiber composite wind turbine blades
复制标题
用于碳纤维复合材料风力涡轮机叶片的光纤布拉格光栅传感器的可靠封装
DOI：
10.1016/j.compscitech.2021.108933
复制
发表时间：
2021-07-28
影响因子：
9.1
通讯作者：
Soto, Marcelo A.
中科院分区：
文献类型：
--
作者：
Zhu, Pingyu;Feng, Xuebin;Soto, Marcelo A.
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.
