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1-20 of 31
Keywords: body motion
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Proceedings Papers
Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-354
... is required to accurately assess the damage stability of ships and predict the dynamic behavior of damaged ships and flood flow and free water. asia government roll motion simulation method particle method computational grid reservoir simulation calculation fvm body motion ship motion...
Proceedings Papers
Paper presented at the The 30th International Ocean and Polar Engineering Conference, October 11–16, 2020
Paper Number: ISOPE-I-20-1313
... were considered in the numerical example. Floating body motions and connector beam stresses were calculated by coupled and lumped methods and their results were compared. INTRODUCTION Multiple floating bodies connected with beams are frequently studied recently. Floating photovoltaic system...
Proceedings Papers
Paper presented at the The 26th International Ocean and Polar Engineering Conference, June 26–July 2, 2016
Paper Number: ISOPE-I-16-190
... field equation computational physics reservoir simulation fluid-structure interaction body motion mesh euler equation golay monolithic approach upstream oil & gas algorithm computational mesh procedure time step A monolithic approach for fluid-structure interaction applied...
Proceedings Papers
Paper presented at the The Twenty-fourth International Ocean and Polar Engineering Conference, June 15–20, 2014
Paper Number: ISOPE-I-14-308
... and the deformed mesh technique, the simulation of body motion is achieved. The linear waves and focused wave are generated and compared with theoretical results to validate the numerical wave tank firstly, and then the strongly nonlinear wave-structure interaction is simulated. The motion responses...
Proceedings Papers
Paper presented at the The Twenty-third International Offshore and Polar Engineering Conference, June 30–July 5, 2013
Paper Number: ISOPE-I-13-014
... the linkage system. loading arm element 360 link 0 midstream oil & gas fsru body motion lng carrier link 1 line tension upstream oil & gas moeri kiost byoung wan kim stiffness vector sa young hong relative motion gas monetization subsea system mooring system linkage system...
Proceedings Papers
Paper presented at the The Twenty-second International Offshore and Polar Engineering Conference, June 17–22, 2012
Paper Number: ISOPE-I-12-468
...) in time domain based on the potential theory. A robust and stable improved iterative procedure, iterative semi-implicit time integration method for floating bodies (Yan and Ma, 2007) is used for calculating the time derivative of velocity potential and floating body motion. An energy dissipation method...
Proceedings Papers
Paper presented at the The Twenty-second International Offshore and Polar Engineering Conference, June 17–22, 2012
Paper Number: ISOPE-I-12-459
.... The hydrodynamic forces, wave-induced body motions, wave elevation on the free surface, and second-order wave drift force are computed at various wavelengths. The accuracy of computed results is confirmed by checking the Haskind-Newman and energy-conservation relations. By extending the longitudinal length...
Proceedings Papers
Paper presented at the The Twenty-second International Offshore and Polar Engineering Conference, June 17–22, 2012
Paper Number: ISOPE-I-12-457
... chromosome reflection computation transmission wave coefficient optimal model body motion evolutionary algorithm machine learning wave coefficient Design Optimization of a 2D Asymmetric Floating Breakwater by Genetic Algorithm Faisal Mahmuddin and Masashi Kashiwagi Department of Naval Architecture...
Proceedings Papers
Paper presented at the The Twentieth International Offshore and Polar Engineering Conference, June 20–25, 2010
Paper Number: ISOPE-I-10-508
... ABSTRACT A linearized radiation and diffraction problem of a floating body in two-layer fluids was calculated by the Numerical Wave Tank (NWT) technique in the frequency domain. In two-layer fluids, two different wave modes exist and wave induced body motions should be computed separately...
Proceedings Papers
Paper presented at the The Nineteenth International Offshore and Polar Engineering Conference, July 21–26, 2009
Paper Number: ISOPE-I-09-221
... and a surfacepiercing hemisphere for finite water depth. The computed wave forces and body motion responses agree well with the frequency-domain results. INTRODUCTION The traditional time-domain analysis of ship motions employs the impulse response function (IRF) method based on the frequency domain analysis...
Proceedings Papers
Dynamic Responses of Moored Floating Dual Pontoon Structure In a Fully Nonlinear Numerical Wave Tank
Paper presented at the The Nineteenth International Offshore and Polar Engineering Conference, July 21–26, 2009
Paper Number: ISOPE-I-09-079
... is to investigate the wave-body interaction of floating dual pontoon structure in a 2D fully nonlinear numerical wave tank (NWT) based on the boundary integral equation method (BIEM). This model was validated by comparing the body motions and reflection coefficient with those from other sources. Except near...
Proceedings Papers
Paper presented at the The Eighteenth International Offshore and Polar Engineering Conference, July 6–11, 2008
Paper Number: ISOPE-I-08-129
.... Finally, we found that if the results of body motions induced by regular waves are multiplied by 1/4, then their comparisons with that of random waves show a good agreement. Moreover, the results of drift force from both regular and random waves have similar trends except at the resonance region...
Proceedings Papers
Paper presented at the The Seventeenth International Offshore and Polar Engineering Conference, July 1–6, 2007
Paper Number: ISOPE-I-07-202
... the hydrodynamic radiation damping coefficients. In the formulation of the wave damping force due to oscillatory rigid- body motion, the use of the wave radiation component is made. At the initial stage of the development a rectangular barge form was used and the formulation is based on the strip theory...
Proceedings Papers
Paper presented at the The Sixteenth International Offshore and Polar Engineering Conference, May 28–June 2, 2006
Paper Number: ISOPE-I-06-273
... motion reflection incident wave velocity potential fin theorem frequency wavelength wave reflection body motion relation transmission wave component antisymmetric body transmission wave coefficient original model transmission coefficient horizontal fin amplitude Development...
Proceedings Papers
Paper presented at the The Sixteenth International Offshore and Polar Engineering Conference, May 28–June 2, 2006
Paper Number: ISOPE-I-06-342
..., they are necessary in order to associate the hydrodynamic coefficients (excitation, added mass, ..) to the deformable modes of body motions. Loading of the structural model Due to the differences between the hydrodynamic and structural meshes, an efficient interfacing procedure is needed in order to properly...
Proceedings Papers
Paper presented at the The Sixteenth International Offshore and Polar Engineering Conference, May 28–June 2, 2006
Paper Number: ISOPE-I-06-033
... as the base scheme. The Cartesian grid is used for that it does not depend on the body boundary and the free surface. Then the computation of the strongly nonlinear problem, which may require treatment of both complicated free surface deformation and violent body motion, can be more efficient and robust than...
Proceedings Papers
Paper presented at the The Fifteenth International Offshore and Polar Engineering Conference, June 19–24, 2005
Paper Number: ISOPE-I-05-250
... if it is rather well known and for the sake of clarity, first we briefly present the general methodology for linear seakeeping of the single body. equation drift force body motion field method notation boundary value problem integration different method application barge configuration single...
Proceedings Papers
Paper presented at the The Fourteenth International Offshore and Polar Engineering Conference, May 23–28, 2004
Paper Number: ISOPE-I-04-317
...-potential formulation and mode-decomposition method are used for calculating the time derivative of velocity potential. The frozen-coefficient method is found to be unstable for freely floating body simulation when the body motions are large. The fully nonlinear results are shown to approach the linear case...
Proceedings Papers
Paper presented at the The Thirteenth International Offshore and Polar Engineering Conference, May 25–30, 2003
Paper Number: ISOPE-I-03-106
... & Rafiqul (2000b), Ansari & Khan (1986)). The design of this system presents several difficulties due to the complexity of the analysed structure. frequency subsea system numerical code rotation agreement nonlinearity amplitude mooring system body motion expression configuration cable...
Proceedings Papers
Paper presented at the The Twelfth International Offshore and Polar Engineering Conference, May 26–31, 2002
Paper Number: ISOPE-I-02-335
... and Kato (1999), et al. did researches on the second-order problems, and Malenica and Molin (1995), and Teng and Dong (2001) et al. did work on the third-order problems. boundary condition water surface quantity subsea system computation isaacson truncated cylinder free surface body motion...
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