Numerical simulation of ship collision with gravity base foundations of offshore wind turbines

Publikationstyp
Conference Paper
Date Issued
2013
Sprache
English
Author(s)
Hamann, Thorben  
Pichler, Torben  
Grabe, Jürgen  
Institut
Geotechnik und Baubetrieb B-5  
TORE-URI
http://hdl.handle.net/11420/6024
Article Number
V006T10A037
Citation
Proceedings of the ASME 32nd International Conference on Ocean, Offshore and Arctic Engineering - 2013 : presented at ASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering, June 9 - 14, 2013, Nantes, France / sponsored by Ocean, Offshore, and Arctic Engineering Division, ASME. [Pierre Ferrant, conference chair]. - New York, NY : ASME. - Vol. 6. Polar arctic sciences and technology, offshore geotechnics, Petroleum Technology Symposium. - 2013. - Art.-Nr. V006T10A037
Contribution to Conference
ASME 32nd International Conference on Ocean, Offshore and Arctic Engineering - 2013, June 9 - 14, 2013, Nantes, France  
Publisher DOI
10.1115/OMAE2013-11627
Scopus ID
2-s2.0-84893137959
Publisher
ASME
For the installation of offshore foundations several countries (e.g. Germany) require a proof of averting environmental disasters in case of ship collision. The aim is to prevent possible discharge of supplies or even loss of the vessel. Especially for gravity base foundations this load case is problematic due to their larger stiffness and mass compared to monopiles, tripods or jacket foundations. The finite element method provides a powerful tool to predict the collision behaviour in a realistic way taking into account the complex interaction between vessel, foundation and soil. The collision between a fully loaded single hull tanker and a gravity base foundation is subject of numerical analysis. The calculated contact forces between vessel and foundation are compared to a simplified calculation approach. For evaluation of the foundation deformations and areas of failure of the vessel are investigated. The influence of the water depth, the diameter of the foundation and an embedment in the seabed are determined in a parametric study. It can be shown that the finite element method is a suitable approach for investigation of the collision behaviour of offshore structures. The design of gravity base foundations can be optimized with respect to ship collision in a fast and cost-effective manner using this method.
DDC Class
600: Technik
620: Ingenieurwissenschaften