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Keywords: resistance
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Proceedings Papers
Integration Technology and Application of Fast Flushing Pile for Jack-up Drilling Platform
Available to Purchase
Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-011
... of the operation, it is easy to produce a large negative pressure when the pile is pulled, resulting in a large pile pulling resistance. Especially when the pile boots are deep into the mud and the original platform punching pile system is old, it is difficult to guarantee the efficiency of punching pile...
Proceedings Papers
Influence of Various Factors on the Structural Stability of Conductors During Piling
Available to Purchase
Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-008
... of the offshore platform. It plays an important role in isolating seawater, supporting wellhead equipment, building safe circulation channels, resisting environmental loads and so on. There are mature methods for calculating the ultimate bearing capacity and mud penetration depth of conductor. The calculation...
Proceedings Papers
Development of Heavy-Gauge Plate for Linepipe with Excellent Sour Resistance and Low-Temperature Toughness
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Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-456
... for Linepipe with excellent Sour Resistance and Low-Temperature Toughness Yoshinori Nomura Nippon Steel Corporation Kimistu Plate Quality Control Kimitsu, Kimitsu City, Chiba, Japan Taishi Fujishiro Nippon Steel Corporation High Toughness Steel Research Laboratories Shintomi, Futtsu, Chiba, Japan Nobuaki...
Proceedings Papers
Mechanical Behaviors of Triply Periodic Minimal Surface Lattices Under Dynamic Compression Loading
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Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-492
... loading compression loading strength zhang gradient deformation resistance lattice application engineering absorption plastic deformation gradient configuration abu al-rub gyroid tpm structure mechanism Proceedings of the Thirty-fourth (2024) International Ocean and Polar...
Proceedings Papers
H2Pipe JIP: C-Mn Pipelines for Hydrogen Transport – What is Governing the Fracture Toughness?
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Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-452
... the fracture toughness for C-Mn materials in H2 environments. The outline of the paper is as follows. First a brief outline of the background is given. Then we will revisit some of the key concepts in general fracture mechanics. Following that, key experimental observations regarding the resistance to crack...
Proceedings Papers
Prediction and Analysis of Penetration Depth of Jack-up Rig Based on Finite Element Method
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Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-018
... resistance. Second, the spudcan is treated as a rigid body. Third, the soil is modeled as an elastic-plastic material, neglecting the consolidation effect of soil resistance. Lastly, the spudcan utilizes the displacement loading principle, applying a fixed penetration speed at the center of mass. The CEL...
Proceedings Papers
Analysis on Breakout Force of Jack-up Platform
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Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-010
.... On completion of jack-up operations at a site the hull is lowered into the water and the legs are retracted. The uplift force required to extract the legs from the soil, Fuplift , has to exceed the soil resistance to extraction, or the breakout force , Qbreakout. The available force Fuplift is the pull-out...
Proceedings Papers
Closing the Gap for Offshore Hydrogen Pipelines: Saipem Testing Welds in Hydrogen Gas
Available to PurchaseDaniele Scarsciafratte, Angelo Santicchia, Salvatore Terracina, Enrico Torselletti, Elvira Aloigi, Giorgio Arcangeletti, Luigi Francesco Di Vito, Francesco Iob, Andrea Fonzo
Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-457
... a comprehensive testing campaign to assess the behavior of base material, seam weld and girth welds under different hydrogen environments, to establish the limiting criteria for their resistance to H2 embrittlement, to contribute to the reduction of any over-conservatism in ASME B31.12 and bring solutions...
Proceedings Papers
New Site Specific CPT-based Suction Bucket Jacket Installation Coefficients from Field Measurements
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Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-012
...) regulations, where the cone resistance (qc) is correlated to the skirt friction and end-bearing via two empirical factors: a shaft friction factor (kf) and an end-bearing factor (kp). DNV-GL (2019a) suggests the coefficients for calculation of the most probable (MP) and the highest expected (HE) resistance...
Proceedings Papers
Resistance of Lockbolt Systems Made from Carbon and Stainless Steel Subjected to Combined Tension and Shear Loading
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Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-461
... to shear fracture in the shear plane. resistance loading strength interaction diagram interaction resistance lockbolt stainless steel specimen shear coefficient carbon steel shear loading utilisation assembly shear plane evaluation coefficient cross-section verification...
Proceedings Papers
Maneuvering Prediction of a Twin-Propeller Twin-Rudder High-Speed Craft Based on Integrated CFD and Empirical Methods
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Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-544
... in terms of hydrodynamic performance and maneuverability, particularly at high Froude numbers. Therefore, it is important to study the resistance and maneuverability of high-speed craft for their design and operation. Drag and maneuverability are crucial factors that impact the performance of high-speed...
Proceedings Papers
Optimization of Resistance Performance of Semi-Small Waterplane Area Twin-Hull
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Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-512
... ABSTRACT THE wet surface area of a small waterplane area twin-hull (SWATH) is about 80% larger than that of a mono-hull with the same displacement. At the same time, large wet surface area makes the resistance performance of small waterplane area twin-hull poor at high speed. Therefore...
Proceedings Papers
Factor Analysis of Ship Propulsive Performance Including Fouling and Aging Deterioration for Onboard Monitoring Data
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Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-590
... physical models have difficulty dealing with data uncertainty, and approaches using deep learning have difficulty dealing with the unevenness of data. The proposed method can reasonably deal with these problems. INTRODUCTION The resistance caused by waves, wind, and ocean currents acting on a ship...
Proceedings Papers
Hull and Trim Optimization of Semi-Planing Yacht to Reduce Resistance Based on Numerical Simulation and Experimental Verification
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Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-561
... ABSTRACT The development of yacht form trends toward more displacement and higher speed, so the optimization of such a yacht is an urgent need. In this paper, a semi-planing yacht, characterized by its small length-to-beam ratio, is chosen as the optimization target to reduce resistance based...
Proceedings Papers
A Numerical Study on Estimating the Minimum Required Power in Adverse Conditions Considering Short-Crested Irregular Wave Conditions
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Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-513
... ABSTRACT This study attempted to compare and analyze the power required of the K-Supramax hull according to the added resistance estimation method in irregular wave, which includes the guideline of the estimation of minimum propulsion power in adverse conditions (MEPC71/INF.28). The added...
Proceedings Papers
Hydrodynamic Shape Optimization by High Fidelity CFD Solver and BP Neural Network
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Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-559
... ABSTRACT In this paper, a hydrodynamic performance optimization framework is utilized to perform out resistance optimization work for the bow shape of a River and Coastal Connection ship. The design variables employed in this work are the bulbous bow length, bulbous bow width, and bulbous bow...
Proceedings Papers
Analysis of Hydrodynamic Performance of a Gate Rudder Propeller System
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Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-581
..., the rudder is usually installed behind the propeller to control the ship by utilizing the wake of the propeller. However, the traditional rudder would impose several limitations, such as increasing the appendage resistance, affecting the arrangement of the stern, limiting the diameter of the propeller...
Proceedings Papers
Optimal Energy Management Strategy for Dual-Engine Hybrid Power System Based on Dynamic Programming
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Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-574
... formula coefficient engine ieee transaction propeller emss battery consumption ship resistance efficiency dhp engine startup shanghai jiao tong university Proceedings of the Thirty-fourth (2024) International Ocean and Polar Engineering Conference Rhodes, Greece, June 16 21, 2024 Copyright...
Proceedings Papers
Experimental Study of Influence of Bubble Flows on the Boundary Layer Below a Plate in Shallow Water Environment
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Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-514
... the pressure sensor to measure the flow force of the plate, the effect of different flow field conditions on the friction resistance of the plate surface is analyzed. The shallow water environment at different depths is simulated by changing the distance from the plate to the bottom by adding a cushion...
Proceedings Papers
A New Way to Derive Hull Form Factors at Different Draft
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Paper presented at the The 34th International Ocean and Polar Engineering Conference, June 16–21, 2024
Paper Number: ISOPE-I-24-510
... affects the predicted ship resistance, which can be calculated according to the ITTC1978 formula (ITTC, 2011) based on the model test results. (equation) where the subscripts " m " and " s " represent "model-scale" and "full-scale", respectively; C t is the coefficient of total resistance; C f...
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