Distributed strain and load monitoring of 6 m composite wing structure by FBG arrays and long-length FBGs

被引：2

作者：

Murayama, Hideaki ^{[1
]}

Tachibana, Kazuki ^{[1
]}

Hirano, Yoshiyasu ^{[2
]}

Igawa, Hirotaka ^{[2
]}

Kageyama, Kazuro ^{[1
]}

Uzawa, Kiyoshi ^{[1
]}

Nakamura, Toshiya ^{[2
]}

机构：

[1] Univ Tokyo, Sch Engn, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1138656, Japan

[2] Japan Aerosp Explorat Agcy, Tokyo 1138656, Japan

来源：

22ND INTERNATIONAL CONFERENCE ON OPTICAL FIBER SENSORS, PTS 1-3 | 2012年 / 8421卷

关键词：

Fiber-optic distributed sensor; Strain; FBG; OFDR; Composite; CFRP; Wing; SENSORS;

D O I：

10.1117/12.970292

中图分类号：

TP7 [遥感技术];

学科分类号：

081102 ; 0816 ; 081602 ; 083002 ; 1404 ;

摘要：

We equipped a composite wing structure fiber Bragg grating (FBG) arrays including 246 FBGs with 10 mm gauge length, eight and six long-length FBGs with 300 mm and 500 mm, respectively. The length of the wing was 6 m and it was made of carbon fiber reinforced plastics (CFRP). The sensing system based on optical frequency domain reflectometry (OFDR) was used in a series of load tests. The measured results by FBG arrays showed the overall deformation of the wing and good agreement with analysis results. Additionally, strain distributions of stress concentration zones were successfully measured by long-length FBGs.

引用

下载

页数：4