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Keywords: hull
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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-23-276
... and the ice interact with each other. A good overview of the issues can be found in Kujala, (2017). The forces measured depend on a number of factors such as ice thickness, floe size, ice type, ice strength properties, ship speed, ship structure, hull form and the measuring system itself. Various types...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-318
... architects to pursue a more hydrodynamic hull to meet the minimum energy efficiency levels. Keeping pace with these advances means obtaining a more complex shape suitable to fill with more cargo and maintaining excellent resistance performance. However, it is crucial to guarantee the safety...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-329
... by the breaking wave at the bow of the ship, as well as the bubbles originated from the openings or protrusions on the hull, such as the bow thruster hole and the seawater valve. These tiny bubbles are then travelled downstream to the bottom of the ship, generally called as bubble sweep-down. Bubbles that near...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-342
... saline water (Kg m-3) Weight displacement (mt) 2366 Volume Displacement (m3) Displacement at deep draft of the ship hull (ton) Natural frequency (rad s-1) peak frequency (rad s-1) 2 variance of U(t) peakedness parameter Unit weight of the material (Kg m-3) Velocity potential (m2 s-1) Free surface...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-355
... the accuracy of PMM test to measure maneuvering performance. Improving the accuracy of CFD calculation for oblique test takes an important role in the estimation of a vessel's performance. Zhu et al. (2019) performed a CFD analysis on a bare hull under incoming head waves with an oblique angle of 10 degrees...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-352
... gradient near the hull surface, a high-quality boundary layer mesh is required to solve the flow field near the wall. Compared with the model scale, the boundary layer is relatively thin for numerical simulation of full-scale vessels. The first boundary layer is critical for computational accuracy, and its...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-508
... in a towing tank facility at BSHC. The test of the appended hull model is compared to the virtual towing tank test. The numerical model based on the RANS equation was equipped with an air lubrication system and tested in shallow water. The model's hydrodynamic forces and moment were measured and compared...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-521
... ABSTRACT To reduce the power requirement of a sail-assisted VLCC, the hull form is optimized by comprehensively considering the resistance, wake field and sail boosting capacity. Firstly, the sail boosting capacity is analyzed to determine the principal dimensions. Then the local hull...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-576
... responses and have a positive effect on the coupled motion of the trimaran. asia government oblique head wave characteristic encounter period upstream oil & gas trimaran pitch motion motion response forward speed china government wave steepness history ship motion simulation hull t...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-583
... the optimal outrigger layout under a specific speed. The slender ship theory is applied to calculate the wave resistance of the trimaran. In order to improve the calculation accuracy, NURBS (Non-Uniform Rational B-Splines) method is introduced to modeling the hull surface. The steepest descent method...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-578
... hull forms classification are generally related to speed regimes when describing hydrodynamic characteristics, operational cost and dynamic efficiency of marine vehicles (Savitsky, 2003). Among the various types of hull forms, the planing hull forms which rely significantly on hydrodynamic forces...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-571
...Proceedings of the Thirty-third (2023) International Ocean and Polar Engineering Conference Ottawa, Canada, June 19-23, 2023 Copyright © 2023 by the International Society of Offshore and Polar Engineers (ISOPE) ISBN 978-1-880653-80-7; ISSN 1098-6189 www.isope.org Numerical Study on Hull...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-573
... Resistance of a High-Speed Ferry with a Several-Stepped Hull Andi Dian Eka Anggriani1 , Hidemi Mutsuda1*, Takuji Nakashima1, Andi Ardianti2, Suandar Baso2 Transportation and Environmental System, Graduate School of Advanced Science and Engineering, Hiroshima University Higashihiroshima, Hiroshima-shi, Japan...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-147
.... The loads, including lightship weight, pressure of tanks, wave loads, are applied to the FE model. The result shows that the stress concentration is easy to occur at the bottom of the main hull, radial bulkhead, ring bulkhead and shell of hull, where the local reinforcing stiffener can be arranged to reduce...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-089
...-enclosed hull containing all the internal reaction mechanisms. The internal power take-off system consists of an inertial mass with secondary transmission mechanism, which can be hydraulic cylinders or other types of components, connecting the mass to the solid outer hull. In this paper, a full-scale...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-073
... ABSTRACT Second-order wave effects in floating offshore wind turbines (FOWTs) are consistently under-estimated by mid-fidelity modeling software when compared to experimental data. This research focuses on tuning second-order FOWT hull motions using a parametric study with new features...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-261
... upstream oil & gas propeller friction resistance boat formation resistance resistance differential pressure resistance equation pressure coefficient china government coefficient total resistance grid asia government auv hull parallel formation calculation result reduction...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-259
... reconstruction method to deform the hull line, and uses the uniform design test method to obtain uniformly distributed test samples in the design space.Considering the long computation time required for direct optimization, the radial basis function neural network method was used to construct an approximate...
Proceedings Papers

Paper presented at the The 33rd International Ocean and Polar Engineering Conference, June 19–23, 2023
Paper Number: ISOPE-I-23-266
... and optimization of cylindrical pressure hull based on multi-island genetic algorithm Siming Yuan1, Enquan Han1, Du Du1, Husha Han1,Hao Peng2 1. Naval Research Institute, Beijing, China 2. School of Naval Architecture, Ocean and Energy Power Engineering, Wuhan University of Technology, Wuhan, Hubei, China...
Proceedings Papers

Paper presented at the The 32nd International Ocean and Polar Engineering Conference, June 5–10, 2022
Paper Number: ISOPE-I-22-067
... mechanism blade element turbine geometry social responsibility hull glider mathematical model thermal engine cylinder wake distribution Proceedings of the Thirty-second (2022) International Ocean and Polar Engineering Conference Shanghai, China, June 5 10, 2022 Copyright © 2022...

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