...Günther F. Clauss; Sascha Kosleck; Daniel Testa The encounter of extreme waves, extreme wave groups, or unfavorable wave sequences poses dangerous threats for ships and floating/stationary marine structures. The impact of extreme waves causes enormous forces, whereas an unfavorable wave sequence...

... bottom shell panel during ship grounding. Partial safety factors of two random variables which describe pit corrosion geometry and the effective nominal strain level are also calculated. Recommendations for using partial safety factors are provided. First, we carried out plastic FE analyses...

... that include short and intermediate panels, which allows analyzing the effect of space framing on the strength of stiffened panels. References 1 Janssen , G. T. M. , 2000 , “ Fatigue Based Design Rules for the Application of High Tensile Steel in Ships ,” Proceedings of the 7th International...

...Jeom Kee Paik; Do Kyun Kim; Hoseong Lee; Yong Lae Shim The edge condition of the plating in a continuous stiffened-plate structure is neither simply supported nor clamped because the torsional rigidity of the support members at the plate edges is neither zero nor infinite. In a robust ship...

.../1.2919956 Lee , C. H. , and Newman , J. N. , 2006 , WAMIT User Manual , WAMIT, Inc. , Chestnut Hill, MA , Versions 6.4, 6.4PC and 6.1S, 6.1S-PC. Chakrabarti , S. K. , 2001 , “ Empirical Calculation of Roll Damping for Ships and Barges ,” Ocean Eng. 0029-8018 , 28 , pp...

...Marcelo Ramos Martins; Diego F. Sarzosa Burgos The cost of a new ship design heavily depends on the principal dimensions of the ship; however, dimensions minimization often conflicts with the minimum oil outflow (in the event of an accidental spill). This study demonstrates one rational methodology...

... coefficients and response amplitude operators is studied. A primary example of the interaction of steady flows with time harmonic flows is the motion of ships in waves. Other examples include the flow around damaged ships, hydraulic breakwaters, oil skimming vessels, and the flow induced by intake...

... with stiffeners Smearing of stiffeners into the plate 28 10 2009 14 06 2010 31 03 2011 31 03 2011 compressive strength elasticity shear modulus ships aluminum high speed craft crushing strength and behavior LS-DYNA hull geometry stiffener Impact...

...Chadi Khaddaj-Mallat; Jean-Marc Rousset; Pierre Ferrant Roll-on/roll-off vessels appear to be sensitive to rapid capsizing due to an abrupt ingress of water caused by maritime accidents. As a result of the damage creation, the flooded ship can experience intermediate stages, which might be more...

...Suhas Vhanmane; Baidurya Bhattacharya The ultimate strength of a ship’s hull depends on its material and geometric properties, some or all of which may be random in nature. In addition, initial imperfections in the form of initial deflection and residual welding stresses in plating between...

... ) is Gaussian, the expectation of Eq. 7 can be evaluated as A8 α = g ( V c , σ r ( 1 ) ) with the function g defined in Eq. 2 . Ormberg , H. , and Larsen , K. , 1998 , “ Coupled Analysis of Floater Motion and Mooring Dynamics for a Turret-Moored Ship...

...M. R. Emami Azadi In the present study, the influence of various scenarios of supply ship collisions, namely, bow, stern, and also broad-side impacts on a jacket-pile-soil system, is investigated. In the previous study of ship impact on an eight-leg North-Sea jacket platform by Amdahl and other...

... method, which includes a von Kármán slamming model applied over the wetted-length determined from an undisturbed wave profile. Mizoguchi , S. , and Tanizawa , K. , 1996 , “ Impact Wave Loads due to Slamming—A Review ,” Ship Technology Research , 43 , pp. 139 – 154 . Faltinsen , O...

...Ray-Qing Lin; John G. Hoyt, III The six-degrees-of-freedom ship motions of a ship at speeds other than zero are always measured in terms of encounter frequency, and often, the incident waves in experimental data are also measured only in the encounter frequency domain. Using these measured data...

.... It may be concluded that the use of the nonlinear restoring moment, which is an odd polynomial of the fifth order, and the cubic form for the nonlinear damping moment best fits the roll behavior for the ship model. The amount of energy dissipated by the damping moments is also calculated in the time...

...Chuanke Li; Ian J. Jordaan; Rocky S. Taylor Ice load estimation is required in the design of ships and offshore structures for arctic and subarctic conditions. This paper focuses on the estimation of local ice pressures. The “event-maximum” method for local ice pressure analysis is a probabilistic...

...S. J. Lee; M. H. Kim The coupling and interactions between ship motion and inner-tank sloshing are investigated by a potential-viscous hybrid method in the time domain. For the time-domain simulation of vessel motion, the hydrodynamic coefficients and wave forces are obtained by a potential-theory...

... year honors project. Froude , W. , 1861 , “ On the Rolling of Ships ,” The Papers of William Froude , Royal Institute of Naval Architects , London . Ferrari , J. F. , Jr. , and Ferreira , M. , 2002 , “ Assessment of the Effectiveness of the Bilge Keel as an Anti-Roll...

...Jeffrey M. Falzarano; Srinivas Vishnubhotla; Sarah E. Juckett In this paper various techniques of dynamical system analysis are used to analyze the effect of damping on large amplitude nonlinear ship-rolling motion of a patrol vessel. In particular steady state magnification curves, Poincare maps...

...Katrin Ellermann Floating systems, such as ships, barges, or semisubmersibles, show a dynamical behavior, which is determined by their internal structure and the operating conditions caused by external forces e.g., due to waves and wind. Due to the complexity of the system, which commonly includes...