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Parametric rolling behaviour of azimuthing propulsion-driven ships

Turan, Osman and Ayaz, Zafer and Aksu, Seref and Kanar, Jan and Bednarek, Antoni (2008) Parametric rolling behaviour of azimuthing propulsion-driven ships. Ocean Engineering, 35 (13). pp. 1339-1356. ISSN 0029-8018

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The study investigates the experimental and numerical analysis of the occurrence of auto-parametric rolling for large, high-speed pod-driven ships in waves. Considering unique design and performance targets, the aim here is to exploit susceptibility to auto-parametric rolling behaviour and to identify probable design and operational precautions. In order to achieve this aim, an existing non-linear timedomain software to simulate capsizing and other critical manoeuvring behaviours of slow- to mediumspeed conventional and podded ships in waves is being enhanced for fast pod-driven vessels and then compared against the dedicated model test conducted in long-crested regular and random waves for a large, pod-driven containership model. This paper includes the presentation of current numerical modifications for pod-driven ships and the verification analysis.