title: Study on dynamic response measurement of the submarine pipeline by full-term FBG sensors.
abstract: The field of structural health monitoring is concerned with accurately and reliably assessing the integrity of a given structure to reduce ownership costs, increase operational lifetime, and improve safety. In structural health monitoring systems, fiber Bragg grating (FBG) is a promising measurement technology for its superior ability of explosion proof, immunity to electromagnetic interference, and high accuracy. This paper is a study on the dynamic characteristics of fiber Bragg grating (FBG) sensors applied to a submarine pipeline, as well as an experimental investigation on a laboratory model of the pipeline. The dynamic response of a submarine pipeline under seismic excitation is a coupled vibration of liquid and solid interaction. FBG sensors and strain gauges are used to monitor the dynamic response of a submarine pipeline model under a variety of dynamic loading conditions and the maximum working frequency of an FBG strain sensor is calculated according to its dynamic strain responses. Based on the theoretical and experimental results, it can be concluded that FBG sensor is superior to strain gauge and satisfies the demand of dynamic strain measurement.
authors: School of Civil Engineering, Dalian University of Technology, Dalian 116024, China ; School of Civil Engineering, Shenyang Jianzhu University, Shenyang 110168, China.
authors: Jinghai
authors: J
authors: Zhou
authors: School of Civil Engineering, Shenyang Jianzhu University, Shenyang 110168, China.
authors: Li
authors: L
authors: Sun
authors: School of Civil Engineering, Dalian University of Technology, Dalian 116024, China.
authors: Hongnan
authors: H
authors: Li
mesh_terms: D005336:Fiber Optic Technology / Q000295:instrumentation* / Q000379:methods*; D009792:Oceans and Seas; D055883:Structure Collapse; D014872:Water Movements