Risk analysis of maintenance ship collisions with offshore wind turbines

Journal Article

Title: Risk analysis of maintenance ship collisions with offshore wind turbines
Publication Date:
June 05, 2017
Journal: International Journal of Sustainable Energy
Volume: 37
Issue: 6
Pages: 576-596
Publisher: Taylor & Francis
Affiliation:
Interactions:

Document Access

Website: External Link

Citation

Presencia, C.; Shafiee, M. (2018). Risk analysis of maintenance ship collisions with offshore wind turbines. International Journal of Sustainable Energy, 37(6), 576-596.
Abstract: 

A large number of offshore wind farms are planned to be built in remote deep-sea areas over the next five years. Though offshore wind sites are often located away from commercial ship traffic, the increased demand for repair or replacement services leads to high traffic densities of “maintenance ships”. To date, the risk analysis of collision between maintenance ship vessels and offshore wind turbines has received very little attention. In this paper, we propose a methodology to evaluate and prioritise the collision risks associated with various kinds of ships used for carrying out maintenance tasks on different subassemblies of wind turbines in an offshore wind farm. It is also studied how the risks of ship collision with wind turbines are distributed between two main types of maintenance tasks, namely corrective and preventative. The proposed model is tested on an offshore wind turbine with seventeen components requiring five kinds of ships to perform the maintenance tasks. Our results indicate that collision risks are mostly associated with maintenance of few components of the wind turbine and in particular, those undergoing a corrective maintenance (replacement). Finally, several mitigation strategies are introduced to minimise the risk of maintenance ship collisions with offshore wind turbines.

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