Design of Hydraulic Locking Device Structure Monitoring System Based on Fiber Bragg Grating
In view of the problem of different number of transverse and longitudinal cracks in the weld seam of hydraulic loc-king device found in FPSO routine check,taking a STP FPSO in South China Sea as an example,a structural safety monitoring system of hydraulic locking device was developed.Based on the structural strength analysis of the target FPSO hydraulic locking device,the equivalent stress was determined,the structural strength was checked and the key structural nodes with high principal stress were found.Based on its own and other FPSO operating inspection history in the South China Sea,the sensor installation position was determined,so as to monitor the status of the hydraulic locking device during operation and maintenance,compre-hensively understand its structural response status under environmental load,and timely warn the safety risks were.
STP type single pointhydraulic locking devicestructure monitoringfiber bragg grating