Journal of Offshore Mechanics and Arctic Engineering: Recent submissions
Now showing items 441-460 of 2185
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Probabilistic Modeling of Horizontal Wave-in-Deck Loads on a Square Concrete Deck
(The American Society of Mechanical Engineers (ASME), 2020)The square concrete deck is being used as an elevated transition piece in offshore structure but has a large exposure area to extreme waves. This study focused on the horizontal wave-in-deck loads on the square concrete ... -
Extended Environmental Contour Methods for Long-Term Extreme Response Analysis of Offshore Wind Turbines1
(The American Society of Mechanical Engineers (ASME), 2020)Environmental contour method is an efficient method for predicting the long-term extreme response of offshore structures. The traditional environmental contour is obtained using the joint distribution of mean wind speed, ... -
Recent Advances in Integrated Response Analysis of Floating Wind Turbines in a Reliability Perspective
(The American Society of Mechanical Engineers (ASME), 2020)Offshore wind provides an important source of renewable energy. While wind turbines fixed to the seabed in shallow water have already been industrialized, floating wind turbines are still at an early stage of development. ... -
A Critical Examination of the Hysteresis in Wells Turbines Using Computational Fluid Dynamics and Lumped Parameter Models
(The American Society of Mechanical Engineers (ASME), 2020)The hysteretic behavior of oscillating water column (OWC)-installed Wells turbines has been known for decades. The common explanation invokes the presence of unsteady aerodynamics due to the continuously varying incidence ... -
Direct Numerical Simulations of Horizontally Oblique Flows Past Three-Dimensional Circular Cylinder Near a Plane Boundary
(The American Society of Mechanical Engineers (ASME), 2020)Understanding hydrodynamics of a free-spanning pipeline subjected to omni-directional flows is important to engineering design. In this study, horizontally oblique flows past a three-dimensional circular cylinder in the ... -
A Fluid–Structure Interaction Study on a Bionic Fish Fin With Non-Uniform Stiffness Distribution
(The American Society of Mechanical Engineers (ASME), 2020)In this paper, the propulsive performance of a caudal peduncle-fin swimmer mimicking a bio-inspired robotic fish model is numerically studied using a fully coupled FSI solver. The model consists of a rigid peduncle and a ... -
Numerical Simulation and Analysis of Phase-Focused Breaking and Non-Breaking Wave Impact on a Fixed Offshore Platform Deck
(The American Society of Mechanical Engineers (ASME), 2020)Extreme wave impact due to tsunamis and storm surge create large wave heights that cause destruction to coastal and offshore structures. Focused waves have been used to represent such extreme waves, and in the present ... -
Effect of Manufacturing Process on Lined Pipe Bending Response1
(The American Society of Mechanical Engineers (ASME), 2020)The effects of manufacturing process on mechanically lined pipe structural performance are investigated. Alternative manufacturing processes are considered, associated with either purely hydraulic or thermo-hydraulic ... -
Multiobjective Reliability-Based Design of Ship Structures Subjected to Fatigue Damage and Compressive Collapse
(The American Society of Mechanical Engineers (ASME), 2020)This work deals with the reliability-based design and optimization of ship structural components subjected to stochastic loads and accounting for the local fatigue damage and buckling and ultimate global strength of the ... -
Dimensionless Groups of Parameters Governing the Ice-Seabed Interaction Process
(The American Society of Mechanical Engineers (ASME), 2020)Prediction of subgouge soil deformation during an ice gouging event is a challenging design factor in Arctic subsea pipelines. An accurate assessment of ice keel–seabed interaction requires expensive model testing and large ... -
Transmission and Reflection Characteristics of Perforated Submerged Single and Multiple Artificial Reef Units
(The American Society of Mechanical Engineers (ASME), 2020)Submerged breakwaters formed by natural rocks dissipate the incident wave energy. Continuous quarrying of rocks has resulted in its depletion, leading researchers to look for alternate materials for the formation of such ... -
A Numerical Method for Calculation of Ship–Ship Hydrodynamics Interaction in Shallow Water Accounting for Sinkage and Trim
(The American Society of Mechanical Engineers (ASME), 2020)Sinkage and trim, which often occur to ships moving in shallow water, do not only have an effect on the ship–ship hydrodynamic interaction forces but also increase the risk of grounding. Potential flow-based online calculation ... -
Model Pile Installation by Vertical Water Jet in Clay
(The American Society of Mechanical Engineers (ASME), 2020)Pile installation by water jetting relies extensively upon empirical methods. For more scientific approaches, improvements have to be made in identifying the erosion processes that occur within the zone of soil adjacent ... -
Magnification Factor Mk and its Parametric Solutions for Fatigue Crack Growth Assessment of Flaws at Weld Root Toes in Girth Welds
(The American Society of Mechanical Engineers (ASME), 2020)To account for the effect of the stress concentration factor (SCF) at the weld toe on stress intensity factor range ΔK, a magnification factor Mk is used. The existing Mk solutions given in BS 7910 were developed for the ... -
Effect of Oscillating Water Column Chamber Inclination on the Performance of a Savonius Rotor
(The American Society of Mechanical Engineers (ASME), 2020)The power potential in the waves that hit all the coasts worldwide has been estimated to be of the order of 1 TW. Each wave crest transmits 10–50 kW/m of energy, which is 15–20 times higher than wind or solar energies. The ... -
Oscillating Wave Surge Converter-Type Attachment for Extracting Wave Energy While Reducing Hydroelastic Responses of Very Large Floating Structures
(The American Society of Mechanical Engineers (ASME), 2020)This paper presents an oscillating wave surge converter (OWSC)-type attachment, comprising a submerged vertical flap connected to the fore edge of a very large floating structure (VLFS) with hinges and linear power take-off ... -
REEF3D::FNPF—A Flexible Fully Nonlinear Potential Flow Solver
(The American Society of Mechanical Engineers (ASME), 2020)In situations where the calculation of ocean wave propagation and impact on structures are required, fast numerical solvers are desired in order to find relevant wave events. Computational fluid dynamics (CFD)-based numerical ... -
Comparative Study on Numerical Computation Methods for Radiation Forces on a Three-Dimensional Body With Edge in the Time Domain
(The American Society of Mechanical Engineers (ASME), 2020)A time-domain numerical model with the linear free surface condition and large amplitude body motions is developed based on the higher-order boundary element method. Five numerical formulations are used to compute the ... -
Numerical Investigation of Deepwater S-Lay Pipeline Under Freak Waves
(The American Society of Mechanical Engineers (ASME), 2020)Freak wave is an extreme sea state with unexpected and huge wave height, which becomes a potential risk for lay barge and offshore pipeline during deepwater installation. In order to investigate the dynamic responses of ... -
An Investigation of the Bisymmetric Hydrostatic Collapse of Flexible Pipes Based on Equivalent Layer Approaches
(The American Society of Mechanical Engineers (ASME), 2020)The hydrostatic collapse strength of a flexible pipe is largely dependent on the ability of its carcass and/or pressure armor to resist radial loading and, therefore, its prediction involves an adequate modeling of these ...