Guide for the Assessment of Parametric Roll Resonance in the Design of Container Carriers
Year: 2024 Language: English Author: American Bureau of Shipping (ABS) Genre: Guide Edition: August 2024 Format: PDF Quality: eBook Pages count: 105 Description: The main purpose of this Guide is to supplement the Rules and the other design and analysis criteria that ABS issues for the classification of container carriers in relation to parametric roll resonance phenomenon. The Guide contains a brief description of the physical phenomenon of parametric roll resonance, which may cause an excessive roll of a containership in longitudinal (head and following) waves. The Guide also contains a description of criteria used to determine if a particular vessel is vulnerable to parametric roll (susceptibility criteria) and how large these roll motions might be (severity criteria). Recommendations are given for further actions if a ship is found to be endangered by the possibility of parametric roll, including numerical simulations and a model test. Means of mitigation of consequences of the parametric roll are briefly considered. The August 2024 edition adds enhanced requirements for the numerical simulation of parametric roll. Subsection 4/1 adds the requirements for digital onboard operational guidance. Subsection 4/2 adds guidelines on the simulation of polar diagrams considering the anti-rolling tank (ART) effect.
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Guide for the Assessment of Parametric Roll Resonance in the Design of Container Carriers
Language: English
Author: American Bureau of Shipping (ABS)
Genre: Guide
Edition: August 2024
Format: PDF
Quality: eBook
Pages count: 105
Description: The main purpose of this Guide is to supplement the Rules and the other design and analysis criteria that
ABS issues for the classification of container carriers in relation to parametric roll resonance phenomenon.
The Guide contains a brief description of the physical phenomenon of parametric roll resonance, which
may cause an excessive roll of a containership in longitudinal (head and following) waves. The Guide also
contains a description of criteria used to determine if a particular vessel is vulnerable to parametric roll
(susceptibility criteria) and how large these roll motions might be (severity criteria). Recommendations are
given for further actions if a ship is found to be endangered by the possibility of parametric roll, including
numerical simulations and a model test. Means of mitigation of consequences of the parametric roll are
briefly considered.
The August 2024 edition adds enhanced requirements for the numerical simulation of parametric roll.
Subsection 4/1 adds the requirements for digital onboard operational guidance. Subsection 4/2 adds
guidelines on the simulation of polar diagrams considering the anti-rolling tank (ART) effect.
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Parametric Roll Guide aug24.pdf
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