Abstract
Subsea pipeline is used to link an offshore petroleum field facility at the open sea and a petroleum terminal nearby the coast, usually to export oil or gas production. In the pipeline way though the sea bottom, free spans for the pipeline happens due to irregularities of the ocean ground. In free span portions of the pipeline length, the sea current results in forces on the pipe, such as the drag and the vortex-induced vibration forces, respectively. Those forces have great influence in the pipe structural stresses and fatigue damage. Therefore, they must be carefully analyzed and considered in the pipeline design. The present work presents a study from a search of experimental data from the literature allied with experiment carried out and semi-empirical VIV approach under development. A numerical simulation procedure is introduced to predict dynamic response of a pipeline with free span. Calculations were carried out in time domain by using finite element approach.
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Morooka, C.K., Tsukada, R.I. Prospecting experimental data of VIV to estimate dynamic behavior of a subsea pipeline with free span. Mar. Syst. Ocean Technol. 8, 39–46 (2013). https://doi.org/10.1007/BF03449268
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DOI: https://doi.org/10.1007/BF03449268