研究目的
Addressing the practical issues of application of fiber Bragg grating (FBG) sensors for the structural health monitoring (SHM) of offshore structures, in particular an FPSO (floating, production, storage, and offloading unit) vessel.
研究成果
The composite embedded FBG sensors were found to be the most suitable for offshore applications due to their robustness, sensitivity, stability, and repeatability. The experimental results demonstrated that these sensors could effectively monitor the strain changes on the surface of an FPSO model under full load and ballast draft conditions, indicating their competence for the SHM of offshore structures.
研究不足
The study focused on the selection and characterization of FBG sensors for offshore applications but did not extensively explore the long-term performance of these sensors in real offshore environments. Additionally, the FPSO model used in the experiments was a scaled-down version, which may not fully replicate the conditions of actual offshore structures.
1：Experimental Design and Method Selection:
The study involved selecting and characterizing three commercially available packaged FBG sensors for offshore applications. The performance of these sensors was tested under conditions simulating the marine environment, including strong sunlight, heavy rain, and salty water.
2：Sample Selection and Data Sources:
The FBG sensors were tested on an aluminum plate and an FPSO model to simulate real-world conditions.
3：List of Experimental Equipment and Materials:
The equipment included FBG sensors with various protection schemes, an aluminum plate, an FPSO model, and a water tank for simulating marine conditions.
4：Experimental Procedures and Operational Workflow:
The sensors were subjected to static, dynamic, and durability tests to evaluate their performance under different conditions.
5：Data Analysis Methods:
The data collected from the sensors were compared with simulation results obtained from finite element analysis (FEA) to validate the sensors' accuracy and reliability.
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