Numerical simulation of a fishing vessel in parametric roll in head seas

2006 ◽  
Vol 2 (1-2) ◽  
pp. 39-44
Author(s):  
Dimitris Spanos ◽  
Apostolos Papanikolaou
Keyword(s):  
Numerical Simulation ◽  
Fishing Vessel ◽  
Parametric Roll

scholarly journals RATIO OF THE MAIN DIMENSIONS AND STATIC STABILITY TRADITIONAL PURSE SEINER IN PINRANG

2017 ◽  
Vol 9 (1) ◽  
pp. 19
Author(s):  
Muh. Arkam Azis ◽  
Budhi Hascaryo Iskandar ◽  
Yopi Novita
Keyword(s):  
Numerical Simulation ◽  
Static Stability ◽  
Good Stability ◽  
Purse Seine ◽  
Fishing Ground ◽  
Fishing Gear ◽  
Fishing Vessel ◽  
Main Dimension ◽  
Dimension Ratio

<p><em>The fishing vessel is the main vehicle of the fishermen to go to fishing ground and hauling purse seine especially fishing gear. Pinrang Regency ships traditionally built without calculation of naval architecture. Where the purse seine fishing gear in Pinrang Regency has length 330 m nets with a depth of 36 m. The purpose of this research was to examine the main dimension ratio in particular design and static stability of the vessel purse seine in Pinrang Regency. Method of using a case study on two types of vessels have different relative and analyzed by numerical simulation, calculate the ratio of the main dimensions and static stability. The results of this research are the vessels in Pinrang kasko model has the shape of a round bottom and slim body as well as the ratio of the dimensions of the vessels only L/D purse seine LOA 24 m more than the standard reference of vessels (encircling) in Indonesia and on the value of the static stability by the IMO, with a purse seine vessel Pinrang already has a good stability. However, in both types of vessel purse seine size 20 m that has better stability.</em></p><p><em> </em></p><strong><em>Keywords:</em></strong><em> design, fishing vessel, purse seine, stability</em>

scholarly journals Numerical Study of Parametric Roll on a Fishing Vessel

2013 ◽  
Author(s):  
Marilena Greco ◽  
Claudio Lugni
Keyword(s):  
Parametric Resonance ◽  
Numerical Study ◽  
Excitation Frequency ◽  
Forward Speed ◽  
Sea Waves ◽  
Fishing Vessel ◽  
Research Activity ◽  
Parametric Roll ◽  
Water On Deck ◽  
Incident Waves

Present research activity examines numerically the occurrence of parametric roll on a fishing vessel interacting with regular head-sea waves. The adopted solver is an efficient 3-D numerical Domain-Decomposition strategy for the seakeeping of a 6-dof vessel without and with small forward speed and possibly subjected to bottom-slamming and water-on-deck events. Here, the vessel has been assumed at rest and the excitation frequency is varied in the first parametric resonance zone and occurrence and features of the instability are examined in terms of nonlinearities of the incident waves and roll natural-to-incident wave frequency ratio. The analysis is performed both fully within the potential-flow theory and examining the effect on the parametric resonance of the viscous correction to the roll damping obtained from free-decay 3D model tests on the same ship. A system of four cables, horizontal in the mean configuration, will be used experimentally to limit the horizontal vessel motions. Here the numerical solver is used to analyze the influence of cable stiffness and of cable configuration on the vessel behavior and to help the design of the physical set up. The vessel has deep draft and high mean freeboard, these aspects work against the occurrence of bottom slamming and water-on-deck events. Without forward speed, no bottom slamming phenomena were observed while limited number of water-on-deck events with small amount of shipped liquid was recorded for the highest-frequency incident waves with largest steepnesses, among those causing parametric roll.

RATIO OF THE MAIN DIMENSIONS AND STATIC STABILITY TRADITIONAL PURSE SEINER IN PINRANG

2017 ◽  
Vol 9 (1) ◽  
pp. 19-28
Author(s):  
Muh. Arkam Azis ◽  
Budhi Hascaryo Iskandar ◽  
Yopi Novita
Keyword(s):  
Numerical Simulation ◽  
Static Stability ◽  
Good Stability ◽  
Purse Seine ◽  
Fishing Ground ◽  
Fishing Gear ◽  
Fishing Vessel ◽  
Main Dimension ◽  
Dimension Ratio

The fishing vessel is the main vehicle of the fishermen to go to fishing ground and hauling purse seine especially fishing gear. Pinrang Regency ships traditionally built without calculation of naval architecture. Where the purse seine fishing gear in Pinrang Regency has length 330 m nets with a depth of 36 m. The purpose of this research was to examine the main dimension ratio in particular design and static stability of the vessel purse seine in Pinrang Regency. Method of using a case study on two types of vessels have different relative and analyzed by numerical simulation, calculate the ratio of the main dimensions and static stability. The results of this research are the vessels in Pinrang kasko model has the shape of a round bottom and slim body as well as the ratio of the dimensions of the vessels only L/D purse seine LOA 24 m more than the standard reference of vessels (encircling) in Indonesia and on the value of the static stability by the IMO, with a purse seine vessel Pinrang already has a good stability. However, in both types of vessel purse seine size 20 m that has better stability. Keywords: design, fishing vessel, purse seine, stability

An Overview of the Minisymposium on Extreme Ship Dynamics Presented at the 2005 SIAM Conference on Applications of Dynamical Systems

2006 ◽  
Vol 43 (01) ◽  
pp. 55-61
Author(s):  
Leigh McCue ◽  
Laura Alford ◽  
William Belknap ◽  
Gabriele Bulian ◽  
Louis Delorme ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Dynamical Systems ◽  
Applied Mathematics ◽  
Roundtable Discussion ◽  
Parametric Roll ◽  
Simulation Tools ◽  
Ship Dynamics ◽  
Experimental Treatments

This paper provides an overview of the work presented during the two-part minisymposium on Extreme Ship Dynamics at the 2005 Society for Industrial and Applied Mathematics (SIAM) Conference on Applications of Dynamical Systems held in Snowbird, Utah, from May 22 to 26, 2005. The topics covered included theoretical and experimental treatments of seakeeping, capsize, general oscillators, parametric roll, and hydrodynamics. A roundtable discussion focused on means to validate numerical simulation tools.

Studies on parametric roll motion of ship under wave group by numerical simulation

2018 ◽  
Vol 163 ◽  
pp. 391-399 ◽  
Author(s):  
Liyuan Wang ◽  
Yougang Tang ◽  
Xiaorui Zhang ◽  
Jingchen Zhang
Keyword(s):  
Numerical Simulation ◽  
Roll Motion ◽  
Wave Group ◽  
Parametric Roll

Water uptake by substituted amylose tablets: experimentation and numerical simulation

2009 ◽  
Vol 00 (00) ◽  
pp. 090904073309027-8
Author(s):  
H.W. Wang ◽  
S. Kyriacos ◽  
L. Cartilier
Keyword(s):  
Numerical Simulation ◽  
Water Uptake
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