... 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...

... 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...

... 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...

... 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...

... 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...

... 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...

.... 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...

... 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...

...) 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...

... 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...

... 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...

... 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...

... 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...

... 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...

... 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...

... 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...

..., 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...

... 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...

... 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...

... 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...