Numerical and physical simulations of moored tanker behaviour

Karulin, Evgeny; Karulina, Marina

doi:10.1080/17445302.2010.544087

Cited by 18 publications

(3 citation statements)

References 3 publications

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“…Experiments with an ice boom showed that even a simple model can yield results that align with experimental results. Simulations of a moored ship in a floe field [ 50 , 51 ] showed only a qualitative agreement with experiments, a result also observed later in similar simulations [ 52 ], where the differences were linked with the limitations of 2D modelling and the simplifications with the modelling of hydrodynamics. More recent 2D simulations have studied ships in an ice floe field and suggest that the turning circle is smaller in a floe field than in open water [ 53 , 54 ], that the loads due to ice floe impacts follow a Weibull distribution [ 55 ] and the loads on a turret mooring system increase with compression in the ice floe field [ 56 ].…”

Section: Discrete Element Methods Simulation Of Sea Ice and Ice–structmentioning

confidence: 78%

A review of discrete element simulation of ice–structure interaction

Tuhkuri

Polojärvi

2018

Phil. Trans. R. Soc. A.

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Sea ice loads on marine structures are caused by the failure process of ice against the structure. The failure process is affected by both the structure and the ice, thus is called ice–structure interaction. Many ice failure processes, including ice failure against inclined or vertical offshore structures, are composed of large numbers of discrete failure events which lead to the formation of piles of ice blocks. Such failure processes have been successfully studied by using the discrete element method (DEM). In addition, ice appears in nature often as discrete floes; either as single floes, ice floe fields or as parts of ridges. DEM has also been successfully applied to study the formation and deformation of these ice features, and the interactions of ships and structures with them. This paper gives a review of the use of DEM in studying ice–structure interaction, with emphasis on the lessons learned about the behaviour of sea ice as a discontinuous medium.This article is part of the theme issue ‘Modelling of sea-ice phenomena’.

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Section: Discrete Element Methods Simulation Of Sea Ice and Ice–structmentioning

confidence: 78%

A review of discrete element simulation of ice–structure interaction

Tuhkuri

Polojärvi

2018

Phil. Trans. R. Soc. A.

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“…Models have also been developed based on the finite element method (FEM) to predict ship-ice interactions and ice loads [Han, Feng and Yue (2007); Kolari, Kuutti and Kurkela (2009) ;Nylandsted, Jäättelä, Hoffmann et al (2003); Premachandran and Horii (1994); Ranta, Polojärvi and Tuhkuri (2018); Xue (2016)]. The discrete element method (DEM) has been used to model various ice-related applications including real-time simulations of ship-ice interactions [Lubbad and Løset (2011)], modeling the ship behavior in broken ice [Karulin and Karulina (2011)], dynamic positioning in ice [Metrikin, Løset, Jenssen et al (2013)], and ice floes jamming in rivers [Stockstill, Daly and Hopkins (2009)] as well as modeling ice ridges and ice rubble in conjunction with FEM [Arttu and Jukka (2009) ;Paavilainen and Tuhkuri (2013)]. Metrikin et al ] provided an excellent review of different types of DEMs and the applications of DEMs in solving ice-related problems.…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulations of the Ice Load of a Ship Navigating in Level Ice Using Peridynamics

Yang¹,

Liu²,

Liu³

et al. 2019

Computer Modeling in Engineering &Amp; Sciences

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In this study, a numerical method was developed based on peridynamics to determine the ice loads for a ship navigating in level ice. Convergence analysis of threedimensional ice specimen with tensile and compression loading are carried out first. The effects of ice thickness, sailing speed, and ice properties on the mean ice loads were also investigated. It is observed that the ice fragments resulting from the icebreaking process will interact with one another as well as with the water and ship hull. The ice fragments may rotate, collide, or slide along the ship hull, and these ice fragments will eventually drift away from the ship. The key characteristics of the icebreaking process can be obtained using the peridynamic model such as the dynamic generation of cracks in the ice sheet, propagation and accumulation of ice fragments, as well as collision, rotation, and sliding of the ice fragments along the ship hull. The simulation results obtained for the ice loads and icebreaking process were validated against those determined from the Lindqvist empirical formula and there is good agreement between the results.

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“…Cho et al [Cho, Jeong and Lee (2013)] performed a series of experimental and numerical simulation studies related to ice resistance used non-refrigerated ice material. Hansen et al [Hansen and Løset (1999)] and Karulin et al [Karulin and Karulina (2011)] calculated the ice resistance during the ship-floating ice process and compared it with the model test. Lau et al [Lau, Lawrence and Rothenburg (2011)] and Konno et al [Konno, Saitoh and Watanabe (2011)] used discrete element method (DEM) software to calculate the icebreaking ability and maneuverability of a ship.…”

Section: Introductionmentioning

confidence: 99%

A Correct Smoothed Particle Method to Model Structure-Ice Interaction

Liu¹,

Qiao²,

Li³

2019

Computer Modeling in Engineering &Amp; Sciences

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This paper studies the effect of ice resistance on the icebreaking capacity and speed of an icebreaking vessel. We combine an improved Correct Smoothed Particle Method (CSPM) with a material low-speed collision fracture model to numerically simulate the continuous icebreaking and rolling process of crushed. Using this model, we investigate the icebreaking resistance and immersion resistance during the icebreaking process, taking into account the fluid (water) as the elastic boundary support and the fluid-solid coupling interaction. We compare the icebreaking resistance and broken ice fracture shapes obtained by the numerical calculation with the theoretical analytical results, and thus validate the improved CSPM method. Further, we compare the immersion resistance results from our simulation against that from Puntigliano [Puntigliano, Hamburgische Schiffbau-Versuchsanstalt GmbH (1995)], and demonstrate that the proposed method can accurately predict ice resistance.

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Numerical and physical simulations of moored tanker behaviour

Cited by 18 publications

References 3 publications

A review of discrete element simulation of ice–structure interaction

A review of discrete element simulation of ice–structure interaction

Numerical Simulations of the Ice Load of a Ship Navigating in Level Ice Using Peridynamics

A Correct Smoothed Particle Method to Model Structure-Ice Interaction

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