Journal of Offshore Mechanics and Arctic Engineering: Recent submissions
Now showing items 161-180 of 2185
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Complexity Analysis Using Graph Models for Conflict Resolution for Autonomous Ships in Complex Situations
(The American Society of Mechanical Engineers (ASME), 2024)Maritime autonomous surface ships (MASSs) will reshape the fast-evolving ecosystem for their attractive socio-economic benefits and potential to improve safety. However, their new systems and technology need thorough ... -
Capital Destruction—What is the Cost of Carbon-Neutrality in Shipping Competition?
(The American Society of Mechanical Engineers (ASME), 2024)The shipping sector must reduce its greenhouse gas emissions. Consumers demand green travel and transport services, but shipping is still to a large extent powered by fossil fuels. One of the key factors affecting the ... -
Numerical Analysis for Cutting a Subsea Bundle
(The American Society of Mechanical Engineers (ASME), 2024)The decommissioning of subsea bundles presents a significant challenge to the industry. Bundles are unique to the North Sea with more than 70 bundles currently in use with diameters reaching 1400 mm. The 1992 Convention ... -
Numerical Research on Impacting Load and Structural Response for a Model Experiment of High-Speed Craft
(The American Society of Mechanical Engineers (ASME), 2024)High-speed craft typically utilizes hydroplane boat-type and large power engine to obtain high-speed in water. However, these designs result in significant hydrodynamic nonlinearities, including slamming, wetness, sliding, ... -
Mechanism Analysis of the Effect of Wake Vortex on Cylinder Vibration in Flow Induced Motion
(The American Society of Mechanical Engineers (ASME), 2024)Unsteady Reynolds-averaged Navier–Stokes (RANS) method combined with Spalart–Allmaras turbulence model and dynamic mesh technology was used to investigate the impact of wake vortex on the vibration response of a cylinder. ... -
Numerical Modeling and Dynamic Response Analysis of an End-Anchored Floating Bridge With a Damaged Pontoon Under Repair Operation
(The American Society of Mechanical Engineers (ASME), 2024)Floating bridges face potential hazards due to ship collisions throughout their operational lifetime. In a situation where a pontoon is significantly damaged from an accident, a floating drydock may be used to compensate ... -
A Practical Procedure for Fatigue Assessment of Mooring Line Chains With Pitting Corrosion
(The American Society of Mechanical Engineers (ASME), 2024)Chain link fatigue failures in mooring lines have recently aroused the interest of the technical community in developing new design and monitoring methodologies focused on considering the effects of local corrosion. ... -
Influence of Propeller–Ice Loads on the Wear Development in Stern Tube Bearings of Marine Propulsion Systems and Identification of Critical Operating Conditions
(The American Society of Mechanical Engineers (ASME), 2024)Increasing ship traffic in ice-covered waters leads to more frequent collisions between ship propellers and sea ice which causes extreme impulse loads on the propeller. These loads are transferred through the propeller ... -
Numerical Investigations on Wake Effects of Fish Cages
(The American Society of Mechanical Engineers (ASME), 2024)A typical fish farm in Norway usually consists of 6–12 fish cages, and these fish cages are moored together in a grid shape. Due to wake effects, individual fish cages may experience different flow velocities depending on ... -
Physics-Informed Neural Networks for Prediction of a Flow-Induced Vibration Cylinder
(The American Society of Mechanical Engineers (ASME), 2024)Flow-induced vibration (FIV) is a common phenomenon in ocean engineering for subsea structures with circular-shaped cross sections. A large amount of computational resources or experimental efforts are required to predict ... -
Hydrodynamic Characteristics of Bridge Cofferdam Under Multidirectional Focused Waves
(The American Society of Mechanical Engineers (ASME), 2024)In the process of coastal bridge construction, cofferdams become necessary facilities to ensure the construction environment is dry and safe. However, during the construction period of coastal bridges, extreme surges and ... -
Centrifuge Modeling of the Performance of Suction Anchor in Soft Clay
(The American Society of Mechanical Engineers (ASME), 2024)Suction anchors are large cylindrical anchors and well suited for both catenary and taut mooring systems. The determination of horizontal and vertical load components hinges upon factors such as the inclined loading angle ... -
Numerical Study on Keying Capacity of Gravity Installed Anchors in Sand
(The American Society of Mechanical Engineers (ASME), 2024)Being the latest representative of gravity installed anchors (GIAs), the OMNI-Max anchor can perform comprehensive behaviors in the seabed, like keying and diving, by adjusting orientation and position to derive higher ... -
Reliability Analysis of Crack Growth Occurrence for a Secondary Hull Component Due to Vibration Excitation
(The American Society of Mechanical Engineers (ASME), 2024)Ship hull vibration is a significant contributor to fatigue crack growth and the major sources of vibrations are found to be the main engine vibration excitation, the wave-induced springing and whipping loads, and the ... -
Underwater Impulsive Response of a Sandwich Structure With a Multilayer Foam Core
(The American Society of Mechanical Engineers (ASME), 2024)The coupling between fluid–solid interaction (FSI) and structural response is a crucial factor in understanding the resistance of sandwich structures to underwater blasts. In this study, we present a theoretical model that ... -
The Impact of Flapping Trajectories on the Induced Thrust of a Single and Tandem Configuration Flapping Foil
(The American Society of Mechanical Engineers (ASME), 2024)The development of propulsion devices by using the propulsive mechanisms of aquatic animals such as fish is a challenging task. An attempt has been made to replicate the fishtailed motion that caused thrust in the current ... -
Research on the Hydroelastic Response of Ice Floes and Wave Scattering Field
(The American Society of Mechanical Engineers (ASME), 2024)The marginal ice zone (MIZ) is the area between sea ice and open water, the structure of which is mainly determined by wave and ice interactions. Thus mastering the characteristics of MIZ is of great significance to the ... -
Hydrodynamic Performance of an Array of Stratified Pile Rock Breakwaters Placed on Elevated Seabed
(The American Society of Mechanical Engineers (ASME), 2023)The present study outlines the hydrodynamic performance of stratified pile-rock breakwaters (SPRBs) in series using the analytical calculation under the framework of linearized potential flow theory. The rubble mounds are ... -
Numerical Study on the Automatic Ballast Control of a Floating Dock
(The American Society of Mechanical Engineers (ASME), 2023)The ballast control of a floating dock mainly relies on manual operations, which can be time-consuming and requires skilled workers. This study proposes an automatic ballast control system for floating docks, which improves ... -
Fluid–Structure Interactions of Net Cages—Full-Scale Pushing Tests in the Field
(The American Society of Mechanical Engineers (ASME), 2024)This paper presents field tests on a full-scale cage, with and without fish, being pushed by a boat in Masfjorden at various speeds. The purpose was to imitate the exposure of net cages to different currents. The tests ...