福海測風塔高頻率光纖光柵結構監測系統可行性評估

Translated title of the contribution: Feasibility Assessment of High Frequency Optical FBG Structural Monitoring Technique on Fuhai Meteorological Mast

Chih Yu Kuo, Hsin Hua Huang, An Bin Huang, Kuen Wei Wu, Hsu Yao Ning, Da Chen Lin, Pi Wen Tsai, Ya Hsin Chan

Research output: Contribution to journalArticle

Abstract

The offshore of Changhua County, Taiwan, is an important wind resourceful area, but unfortunately the seabed has weak soil conditions for structure foundations. These conditions are much unfavorable to wind turbines because they always sustain large and longtime lateral loadings. Constant monitoring of the structures became an indispensable task to ensure good operation and maintenances. Important structural parameters may include the verticalness and dynamic behavior of the wind turbine tower. In searching of suitable structural monitoring techniques applicable in the hash offshore environments, we installed a pioneering optical fiber Bragg grating inclination monitoring system, containing 4 mass tiltmeters, on one of the two offshore meteorological masts in this area, The system started to operate continuously since the July, 7, 2017 and was set to the highest sampling rate, 3 Hz, for stress tests. To demonstrate the long term monitoring capabilities of the system, the records of a usual week-long period and the dynamic spectrum of the week are reported. The paper finally concludes with two-minute records of the exceptional Hualien earthquake occurred on the 6th of February, 2018.

Translated title of the contributionFeasibility Assessment of High Frequency Optical FBG Structural Monitoring Technique on Fuhai Meteorological Mast
Original languageChinese
Pages (from-to)387-394
Number of pages8
JournalJournal of the Chinese Institute of Civil and Hydraulic Engineering
Volume31
Issue number4
DOIs
Publication statusPublished - 2019 Jun 1

ASJC Scopus subject areas

  • Civil and Structural Engineering

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