Journal
INTERNATIONAL JOURNAL OF NAVAL ARCHITECTURE AND OCEAN ENGINEERING
Volume 13, Issue -, Pages 223-235Publisher
SOC NAVAL ARCHITECTS KOREA
DOI: 10.1016/j.ijnaoe.2021.02.002
Keywords
Vertical riser; Vortex-induced vibration; Test system; Bare fiber Bragg grating sensor technology; Experimental investigation
Categories
Funding
- National Natural Science Foundation of China [51709161, 51874189]
- Key Technology Research and Development Program of Shandong [2019GHY112061]
- Research and innovation team of ocean oil and gas development engineering structure, College of Architecture and Civil Engineering, Shandong University of Science and Technology [2019TJKYTD01]
- Natural Science Foundation of Shandong Province [ZR2017BEE041]
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The study designed a Vortex-Induced Vibration (VIV) test system for deepwater riser using Bare Fiber Bragg Grating (BFBG) sensor technology, and established a numerical model based on the work-energy principle. The results showed that the dominant frequency of riser vibration gradually increased with different top tensions as velocity increased, while at the same velocity, both dominant frequency and fatigue damage decreased gradually with increasing top tension. The experimental and numerical simulation results were consistent, with the BFBG-based process control system demonstrating excellent performance.
The Vortex-Induced Vibration (VIV) test system on deepwater riser based on Bare Fiber Bragg Grating (BFBG) sensor technology was designed. Meanwhile, a riser VIV response numerical model was established based on the work-energy principle. The results show that the first-order vibration frequency dominates the vibration of the riser, and as the velocity increases, the dominant frequency of the riser gradually increases under the effect of different top tensions. At the same velocity, as the top tension increases step by step, the dominant frequency and fatigue damage at the same position along the axial length of the riser both gradually decreases. The model test and numerical simulation show a relatively consistent change, maintaining a high degree of agreement. The process control system based on BFBG of model test has excellent performance, and FBG sensors have great advantages in VIV test of a vertical riser in water. (C) 2021 Society of Naval Architects of Korea. Production and hosting by Elsevier B.V.
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