... ABSTRACT Floating offshore wind platforms with circular hulls are well-known worldwide. This study investigated the diffraction analysis of a 5MW NREL wind turbine supported by circular and elliptical hulls with aspect ratios of 1, 1.5, 2, and 2.5 using ANSYS-AQWA. Results showed a significant...

... ABSTRACT Hull roughness, caused by biofouling and aging of a ship hull, significantly increases GHG emissions. Studies (GloFouling, 2022) suggest that a mere 0.5mm slime covering half the underwater hull can intensify the GHG emissions by 25%. This paper presents a methodology using a time...

... ABSTRACT The Office of Naval Research Tumblehome (ONRT) is a stealth destroyer ship that is characterized by a wave-piercing hull design as well as a large sail area. The literature indicates that the bare hull accounts for ∼80% of the ship's total resistance across the entire range...

... simulation grid naoe-foam-sjtu solver upstream oil & gas total longitudinal force maneuverability numerical simulation overset grid horizontal distance resistance maneuver hull pressure distribution equation longitudinal force propeller Numerical Simulations of Ship Stopping Maneuver...

... ABSTRACT In modern computer aided ship design system, ship hull forms are mostly represented by the Non-Uniform Rational B-Spline surfaces and saved in IGES file format for data exchange between different CAD/CAM systems. Ship hull forms represented by NURBS surfaces have many good properties...

... with non-autonomous combination hydrofoil system, measures and analyzes the draft, trim angle of model and law of resistance with the change of navigational speed, hydrofoil position and angle of attack, test results show that the trim angle of HYSWATH model is relatively small in hull-borne, transition...

... Abstract The horizontal clearance effect was studied on the bending and torsion stresses in catamaran cross-deck. Also the influence of the hull geometric characteristics on the stresses of deck stringer under torsion is presented for rectangular compartment of open type ship. The computer...

... and pursuit of the possibility of trimaran especially, wave-making mechanism and resistance characteristics were investigated by linear theory, wave analysis and resistance test. The applicability of linear theory and wave analysis to design the multi hull ship is considered. INTRODUCTION In recent years...

... girder support lath cylindrical support stress-strain state reaction hull Peculiarities of Up-Dating Orlan Drilling Rig for Sakhalin Shelf N.A.Taranukha, B.A.Novikov, S.D.Chizhiumov, O.V.Zhurbin, A.D.Burmensky Shipbuilding Department, Komsomolsk-na-Amure State Technical University Komsomolsk...

...-dimensional boundary value problems that are solved using the boundary element method. The fully non- linear free water surface conditions are imposed on the instantaneous water level. The numerical calculations are performed for the Wigley hull model ship. Effects of the attack angle and finite depth...

... of calculation and so on. Another difficulties of numerical simulation about problems exist in handling very large motion of boundary like the capsized hull. BEM(Boundary Element Method) with ALE(Arbitrary Lagrangian and Eulerian) grid has been used in researches of the numerical wave tank to simulate motion...

... systematically deals with the structural analysis and calculation of the vessel. The ordinary-strength hull structural steel (yield stress: 235 N/mm2 ) is used in this vessel. In all cases, the check on stresses of the members is made according to the permissible stresses of DNV "Ship Rules"(l989...

... can be installed in the oil field of earthquake distrIcts. The committee has worked on the discussion of a new concept of TLP which is economical and performed R&D of techniques sustaining the concept.3 The stabilities of the template have to be estimated the interaction of the hull, tendon, template...

... was proved to be useful. Therefore the similar way is regarded to be applicable for the estimation of the lateral drifting forces on the SWATH ship if the interaction between two hulls can be treated adequately. In the present paper a SSP model is considered and the results are shown fairly good...