Stochastic analysis of TLP’s tendons

This paper deals with the analysis of 100-year extreme von Mises stresses in the tendons of a TLP designed to operate in 1200 m water depth. A simplified joint probabilistic model for the environmental parameters considering the wind velocity correlated to the significant wave height and a fixed cur...

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Bibliographic Details
Published in:Marine systems & ocean technology : journal of SOBENA--Sociedade Brasileira de Engenharia Naval 2016-12, Vol.11 (3-4), p.68-75
Main Authors: Fernandes, Jane V. V., Sagrilo, Luis V. S., Videiro, Paulo Mauricio, Liang, Denis A.
Format: Article
Language:English
Subjects:
Design wave
Design waves
Engineering
Environmental factors
Offshore Engineering
Sea state
Sea states
Significant wave height
Significant waves
Tendons
Water depth
Wave height
Wind speed
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Summary:This paper deals with the analysis of 100-year extreme von Mises stresses in the tendons of a TLP designed to operate in 1200 m water depth. A simplified joint probabilistic model for the environmental parameters considering the wind velocity correlated to the significant wave height and a fixed current profile is used. The following methodologies are compared: regular deterministic design wave, irregular design wave (considering both extreme sea state and sea states located on the extreme environmental contour) and long-term extreme response approach. The interpolation procedure employed to reduce the computational burden and complexity of the long-term integration is also described.
ISSN:1679-396X
2199-4749
DOI:10.1007/s40868-016-0018-7