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UNH OE/CCOM Seminar - Challenges with mooring system design for floating offshore installations - Dr. Krish Thiagarajan Sharman
The 2019-20 UNH OE/CCOM Seminar Series presents: 'Challenges with mooring system design for floating offshore installations', by Dr. Krish Thiagarajan Sharman from the Department of Mechanical and Industrial Engineering at U. Mass Amherst. The talk will be held on Friday, January 31st at Chase Ocean Engineering Lab, Room 105, beginning at 3:10 PM EST.


Moorings are one of the more vulnerable components of an offshore energy production system. Many mooring failures go unreported, and those that have a consequence and need to be reported give an impression of high levels of unknown risk. For example, an annual probability of failure of 0.3% was estimated for mooring systems for floating production systems in the Gulf of Mexico based on reported failures between 2001 – 2011. Given the translation of recommended practices from the oil and gas industry to the offshore renewable industry, some risks and challenges posed by mooring systems need to be understood in this context.

Choice of mooring system design for offshore floating platforms can profoundly affect the stationkeeping and global performance and of these systems. I will present one research problem in each of these aspects. I will first discuss an interesting weathervaning instability of turret-moored floating platforms. The case studied is a ship-shaped tanker that is moored alternately in regular head waves, and in bi-directional seas. In the second part of the discussion, I will look at shock loads on mooring systems for an offshore wind turbine platform. Experimental data and long term probability models will be used to understand the behavior of a mooring system and design safety factors. The talk will conclude with our ongoing research on synthetic mooring lines.

Link to Dr. Sharman's UMASS webpage:

Jan 31, 2020 03:00 PM in Eastern Time (US and Canada)

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