Time-domain simulation of wave-induced nonlinear motions and loads and its applications in ship design

Wu, Mian; Hermundstad, Ole Andreas

doi:10.1016/s0951-8339(02)00003-5

Cited by 41 publications

(14 citation statements)

References 16 publications

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“…Therefore, the explicit scheme is appropriate for modal superposition of few lower modes. It can be assumed that responses of higher modes are quasi-static and can be obtained without coupled analysis (Wu and Hermundstad, 2002;Wu and Moan, 2005). 4th order Adams-Bashfort-Moulton method is applied to time integration of the equation of modal motion in the study.…”

Section: Explicit Time Integration Of Body Motionmentioning

confidence: 99%

Numerical analysis on springing and whipping using fully-coupled FSI models

Kim

2014

Ocean Engineering

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a b s t r a c tThis paper focuses on ship springing and whipping analysis using a three-dimensional (3-D) Rankine panel method combined with a beam-element-based 1-D structural model and a shell-element-based 3-D structural model. In addition, slamming loads are considered by 2-D generalized Wagner model (GWM). The beam model is a classical idealization of a ship structure, which is based on Timoshenko beam theory for bending and Vlasov beam theory for non-uniform torsion. The 3-D model consists of beam and shell elements, and its motions are approximated by a few of lower modes. Different coupling schemes are applied to couple the 3-D panel method and the different structure models. Whereas the 1-D beam model is coupled in a Cartesian coordinate system, the 3-D finite element (FE) model is coupled in a generalized coordinate system. The difference in coordinate systems leads to different numerical implementations of coupling. Agreement and discrepancy between the coupled models are discussed regarding results for a 60 m barge, a 6500 TEU containership, and an experimental model of a virtual 10,000 TEU containership. The bulkheads in the barge and the 6500 TEU containership are properly considered in beam modeling according to relative stiffness between the bulkheads and hulls. In linear responses to waves, good agreement is obtained between all the models. However, differences between the models are found in nonlinear springing and whipping responses.

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Section: Explicit Time Integration Of Body Motionmentioning

confidence: 99%

Numerical analysis on springing and whipping using fully-coupled FSI models

Kim

2014

Ocean Engineering

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“…The nonlinearities considered are due to the slamming impact force, the nonlinear incident wave force and the nonlinear hydrostatic restoring force. More details about the method were described by Wu and Moan [8,14], Wu and Hermundstad [15] and Drummen [16].…”

Section: Numerical Analysismentioning

confidence: 99%

Numerical and experimental investigations into the application of response conditioned waves for long-term nonlinear analyses

Drummen

Moan

2009

Marine Structures

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“…Some experts, such as Lan Kang [12], Sakakibara [13], and John Grue [14], have studied the movement of ships on the earthquake-induced tsunami flow by writing programs and model tests. Some experts have studied the nonlinear motion and load changes of the ship, such as Xia [15], Jelena [16], Wu [17], Alain [18], Kim [19], and Jiao [20]. Fonseca [21] compared numerical and experimental results of nonlinear wave-induced vertical ship motions and loads.…”

Section: Introductionmentioning

confidence: 99%

Study on the Steepness of Landslide-Induced Wave and Nonlinear Motion of Container Ships

2020

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Large-scale instability of a landslide body, sliding down a bank slope and entering water at a high speed, arouses landslide surges. Taking the water entry point as a source point, they spread rapidly to surrounding areas, increasing the danger risk of vessel passages in the water area. In this paper, adopting an orthogonal experimental design method, based on the test data, the Three Gorges Reservoir area was derived in order to calculate the height of the first wave of the bank landslide surge: to analyze the slope angle, the geological environment, the volume of the landslide surge, and the landslide surge wave steepness; to study the landslide volume effect on ship rolling and the swaying motion rule; and to explore the landslide surge in different ship rolling positions and transverse oscillation characteristics. This study can provide theoretical support for the navigation safety of ships in landslide surge waters.

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Time-domain simulation of wave-induced nonlinear motions and loads and its applications in ship design

Cited by 41 publications

References 16 publications

Numerical analysis on springing and whipping using fully-coupled FSI models

Numerical analysis on springing and whipping using fully-coupled FSI models

Numerical and experimental investigations into the application of response conditioned waves for long-term nonlinear analyses

Study on the Steepness of Landslide-Induced Wave and Nonlinear Motion of Container Ships

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