The variety of vessels which can suffer from parametric roll is large. It has been observed on small fishing vessels sailing in following waves but also on large cruise and container vessels in head and following waves. The occurrence of parametric roll, with high roll angles, is governed by a complex combination of main dimensions, loading condition, hull form, appendage configuration, speed and encountered wave conditions. In this paper the influence of main dimension and of variations on the fore and aft body on the occurrence of parametric roll are investigated. A single degree of freedom motion method and a nonlinear time domain simulation method were used. The results were validated with model tests on a C11 container ship. Also, the influence of different roll damping devices on the occurrence of parametric roll is evaluated.
Parametric Roll and Ship Design
Fluid Mechanics, Appl.
2011-05-17
24 pages
Article/Chapter (Book)
Electronic Resource
English
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