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Prediction of Ship Resonant Rolling - Related Dangerous Zones with Regard to the Equivalent Metacentric Height Governing Natural Frequency of Roll
Abstract
Potentially dangerous zones corresponding to dynamical stability phenomena, possibly encountered by ships sailing in rough sea, are estimated nowadays with the use of the method recommended by IMO in the guidance coded MSC.1/Circ.1228. In this IMO method the parameter governing the natural period of roll is the initial metacentric height. Some earlier studies revealed that the initial metacentric height which is commonly in use on‐board ships for the purpose of performing the MSC.1/Circ.1228‐recommended calculations, may significantly vary from the so called equivalent metacentric height obtained for large amplitudes of ship’s roll. In the light of such ascertainment, the paper deals with resultant resonance roll zones locations with regard to the equivalent metacentric height concept remaining appropriate for large amplitudes of roll. The noteworthy transfer of the resonance zones location is disclosed which reflects the distinct configurations of potentially dangerous ship’s course and speed configurations than could be predicted on the basis the initial metacentric height.
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- Publication version
- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.12716/1001.11.04.05
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- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
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TransNav - The International Journal on Marine Navigation and Safety of Sea Transportation
no. 11,
pages 607 - 614,
ISSN: 2083-6473 - Language:
- English
- Publication year:
- 2017
- Bibliographic description:
- Krata P., Wawrzyński W.: Prediction of Ship Resonant Rolling - Related Dangerous Zones with Regard to the Equivalent Metacentric Height Governing Natural Frequency of Roll// TransNav - The International Journal on Marine Navigation and Safety of Sea Transportation -Vol. 4, (2017), s.607-614
- DOI:
- Digital Object Identifier (open in new tab) 10.12716/1001.11.04.05
- Verified by:
- Gdańsk University of Technology
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