Development of a fiber-optic-based hierarchical sensing network for health monitoring of composite structures

开发基于光纤的分层传感网络，用于复合结构的健康监测

• 批准号: 20860027
• 负责人: MINAKUCHI Shu
• 金额: $ 2.1万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (Start-up)
• 财政年份: 2008
• 资助国家: 日本
• 起止时间: 2008 至 2009
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20860027/
• 关键词: 複合材料; 航空宇宙構造; 構造ヘルスモニタリング; 監視システム; 光ファイバセンサ; 衝撃損傷

This study proposed a novel hierarchical sensing concept for detecting damage in composite structures. In the hierarchical system, numerous three-dimensionally structured sensor devices are distributed throughout the whole structural area and connected with an optical fiber network through transducing mechanisms. The distributed devices detect damage, and the fiber optic network gathers damage signals and transmits the information to a measuring instrument. In order to validate the proposed sensing concept, an impact damage detection system was developed and a verification test was then conducted. Occurrence of barely visible impact damage was successfully detected and it was clearly indicated that the hierarchical system has better repairability, higher robustness, and wider monitorable area compared to existing systems utilizing optical fiber sensors.

本研究提出了一种新的分层感知概念，用于复合材料结构损伤检测。在分层系统中，大量的三维结构传感器器件分布在整个结构区域，并通过换能器与光纤网络连接。分布式设备检测损伤，光纤网络收集损伤信号并将信息传输到测量仪器。为了验证所提出的传感概念，开发了一个冲击损伤检测系统，并进行了验证试验。结果表明，与现有的光纤传感器系统相比，该系统具有更好的可修复性、更高的鲁棒性和更广泛的可监测区域。

项目成果

Hierarchical sensing system for detecting impact damage in composite structures combining a fiber optic spinal cord network and distributed sensory nerve cell devices

结合光纤脊髓网络和分布式感觉神经细胞装置的分层传感系统，用于检测复合结构中的冲击损伤

• 发表时间: 2009
• 作者: S. Minakuchi;H. Tsukamoto;N. Takeda
• 通讯作者: N. Takeda

Brillouin Spectral Response depending on Strain Non-uniformity within Centimeter Spatial Resolution and its Application to Internal Damage Detection in Large-scaled Composite Structures

厘米空间分辨率内应变不均匀性引起的布里渊谱响应及其在大型复合材料结构内部损伤检测中的应用

• 发表时间: 2009
• 期刊: Structural Durability & Health Monitoring (in press)
• 作者: S. Minakuchi;T. Mizutani;H. Tsukamoto;M. Nishio;Y. Okabe;and N. Takeda
• 通讯作者: and N. Takeda

Impact damage detection of CFRP panel using fiber-optic-based hierarchical sensing system

使用基于光纤的分层传感系统检测 CFRP 面板的冲击损伤

• 发表时间: 2009
• 作者: S. Minakuchi;H. Tsukamoto;N. Takeda
• 通讯作者: N. Takeda

三次元の広がりを有する分散デバイスと光ファイバを階層化したセンシングシステムによる複合材衝撃損傷検知

使用采用三维色散装置和分层光纤的传感系统检测复合材料的冲击损伤

• 发表时间: 2009
• 作者: 水口周;塚本遥;武田展雄
• 通讯作者: 武田展雄

Barely visible impact damage detection for composite sandwich structures by optical-fiber-based distributed strain measurement

• DOI: 10.1088/0964-1726/18/8/085018
• 发表时间: 2009-08-01
• 期刊: SMART MATERIALS & STRUCTURES
• 影响因子: 4.1
• 作者: Minakuchi, S.;Okabe, Y.;Takeda, N.
• 通讯作者: Takeda, N.