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Parametric Roll Instability of Ships [PDF]

open access: yes, 2008
Parametric roll may be defined as the spontaneous rolling motion of the ship moving in head or following seas that comes about as a result of the dynamic instability of motion. The development of the parametric roll occurs under the conditions that the encounter angular frequency is approximately twice the roll angular frequency, the wavelength is equal
Sheikh, Irfan Ahmad
openaire   +2 more sources

Nonlinear Observers for Parametric Roll [PDF]

open access: yes, 2012
Parametric roll resonance is a dangerous resonance phenomenon affecting several kinds of ships, such as cruise ships, fishing vessels and container ships. In a worst case scenario parametric roll resonance may lead to roll angles of up to 50 degrees, capsizing of the vessel, or damage of goods and ship for tens of millions of dollars, citep ...
Olsen, Gunnhild Konstanse Hoff
core   +3 more sources

Modeling and Control of Parametric Roll Resonance [PDF]

open access: yes, 2011
Parametric roll resonance is a dangerous resonance phenomenon affecting several types of ships, such as destroyers, RO-RO paxes, cruise ships, fishing vessels and especially container ships. Worst case, parametric roll is capable of causing roll angles of at least 50 degrees, and damage in the tens of millions of US dollars.
Holden, Christian
core   +3 more sources

Stability Analysis of Randomly Excited Ship Parametric Roll Resonance

open access: yes, 2017
In this paper, ship stability of randomly excited parametric roll resonance is studied. Parametric roll resonance will lead to severe roll motion and even capsize. Studies on parametric roll resonance have many challenges for the randomness and nonlinear.
Yang, H.   +4 more
core   +7 more sources

The Smart Detection of Ship Severe Roll Motions and Decision-Making for Evasive Actions

open access: yesJournal of Marine Science and Engineering, 2020
This paper presents a numerical model for the smart detection of synchronous and parametric roll resonance of a ship. The model implements manoeuvring equations superimposed onto ship dynamics in waves.
Maria Acanfora, Flavio Balsamo
doaj   +1 more source

Implementation of the IMO Second Generation Intact Stability Guidelines

open access: yesJournal of Marine Science and Engineering, 2021
This paper provides a discussion of the technical and theoretical ambiguities, requirements, and limitations to develop a practical implementation of the IMO Second Generation Intact Stability criteria.
Kyle E. Marlantes   +2 more
doaj   +1 more source

Flow phenomena in fixed-gap and gravure roll coating systems [PDF]

open access: yes, 1999
This thesis describes investigations into a number of coating processes using experimental, analytical and computational techniques. The first problem, considered experimentally, is that of reverse roll coating with a liquid reservoir positioned ...
Kapur, N., Kapur, Nikil
core   +6 more sources

A Numerical Application of Ship Parametric Roll under Second Generation Stability Criteria [PDF]

open access: yesJournal of Eta Maritime Science, 2019
In this study, the parametric roll motion for the benchmark container ship form C11 is investigated by using the second generation stability criteria, which were intensively studied by IMO (International Maritime Organization).
Ferdi ÇAKICI
doaj   +1 more source

Evaluation of Parametric Roll Mode Applying the IMO Second Generation Intact Stability Criteria for 13K Chemical Tanker

open access: yesJournal of Marine Science and Engineering, 2023
In this paper, the evaluation procedure for Level 1, Level 2A, and Level 2B for the parametric roll among the five modes of the IMO second generation stability criteria was explained in detail.
Dongmin Shin   +4 more
doaj   +1 more source

Parametric roll oscillations of a hydrodynamic Chaplygin sleigh

open access: yesNonlinear Dynamics, 2023
Biomimetic underwater robots use lateral periodic oscillatory motion to propel forward, which is seen in most fishes known as body caudal fin (BCF) propulsion. The lateral oscillatory motion makes slender-bodied fish-like robots roll unstable. Unlike the case of human-engineered aquatic robots, many species of fish can stabilize their roll motion to ...
Kartik Loya, Phanindra Tallapragada
openaire   +3 more sources

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