Benchmarking of VIV numerical analysis with prototype response for fatigue assessment of inverse catenary coldwater pipelines

Abstract

Article Highlights The oscillations of a submarine pipeline subjected to current loads that is varying along the depth are measured in the field (prototype), which is unique and valuable data that is sparsely or seldom available. Using numerical analysis this problem is analysed to replicate the field oscillations due to variable current to enhance the confidence of mathematical models. The high oscillations in the direction of the current can induce damage within the design life of the pipeline and therefore adopt measures to bring down the oscillations to acceptable level by providing external attachments on the pipeline.

Keywords

• Fatigue damage
• HDPE pipeline
• In-line vibration
• Sheared current
• VIV