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Influence of Wave Direction on the Dynamic Response of A Submarine Equipment Launch and Recovery System
A launch and recovery system for a seafloor drill was studied using a dynamic model that considered the influences of seawater resistance and the...
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Dynamics Analysis of the Cooperative Dual Marine Lifting Systems Subject to Sea Wave Disturbances
Strong coupling and complex nonlinearities increase the difficult of the dynamic modeling of the cooperative dual marine lifting system (DMLS)....
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Dynamic Model and Motion Characteristics of an Underwater Glider with Manta-inspired Wings
An underwater glider with bionic wings controlled by two operating modes is proposed to perform a variety of marine exploration tasks. The system...
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Numerical study of fluid resonance of a two-dimensional heaving-free moonpool in a wide range of incident waves
The fluid resonance of a moonpool freely heaving in a beam sea is studied by an in-house constrained interpolation profile (CIP) code. Generally, the...
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Hydrodynamic dam** enhancement by implementing a novel combined rigid-elastic heave plate
Heave plates are structural components used for reducing the vibrations caused by environmental forces on marine and offshore structures by changing...
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Numerical simulations of sloshing waves in vertically excited square tank by improved MPS method
Faraday wave is a phenomenon of sloshing due to a heave motion of a partially filled tank, which is also called parametric instability or parametric...
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Comparative Study of Wave Forces on a Spar-Type FOWT Under Free Floating Conditions: The Role of Slenderness
Renewable energyEnergy, especially offshore wind energyEnergy, has become one of the most rapidly growing energyEnergy alternatives in recent years....
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Fatigue Analysis of Vortex-Induced Vibration for Marine Risers with Top-End Platform Motion Excitations
Vortex-induced vibration (VIV) of marine risers is a typical fluid-structure interaction (FSI) phenomenon. When considering the top-end platform...
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Numerical prediction of ship motion and slamming load characteristics in cross wave
When waves from two weather systems converge at a certain sea area, cross waves can be produced. It is important to have a better understanding of...
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Influence of an active T-foil on motions and passenger comfort of a large high-speed wave-piercing catamaran based on sea trials
T-foil and stern tabs were installed on a wave-piercing catamaran (Incat Tasmania Hull 061) to improve ship motions and passenger comfort. More than...
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Three-dimensional nonlinear coupling vibration of drill string in deepwater riserless drilling and its influence on wellbore pressure field
During deepwater riserless drilling operations, the vibration behavior of drill string may have a significant impact on wellbore pressure, which...
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Models of Hovercrafts and Vehicles in Horizontal Motion
The full surface vehicle model which is closer to real system should have 6 DOF. However, common practice in modeling is to reduce this model to 3...
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Estimation of Ship Heave and Pitch Under Wave Loads Using Kalman Filtering
Ships or any marine vessels experience loads in form of dynamic wave and wind forces. These affect the motion of ships in both transverse and...
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Numerical study on roll dynamics of damaged ship in beam waves and calm water
Computational fluid dynamics is used to study the roll dynamics of a damaged ship in beam waves with various steepnesses and in calm water. The...
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Experimental study on fractal characteristics of seepage-induced failure in granular soil
Seepage-induced failures in granular soils pose a potential hazard for geotechnical engineering, but the types and mechanisms of seepage failures...
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Experimental Study on Towing Characteristics of Composite Bucket Wellhead Platform
With the rapid development of large-scale development of marginal oilfields in China, simple wellhead platforms that are simple in structure and easy...
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Sinusoidal Vertical Motion Suppression and Flow Noise Calculation for a Sonobuoy
The flow noise associated with sinusoidal vertical motion of a sonobuoy restrains its working performance. In practice, a suspension system...
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Biomimetic Untethered Inflatable Origami
Recent years in soft robotics development have witnessed rising innovations that draw inspiration from the natural world (i.e., biomimicry). By...
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Dynamic Motion Backstep** Control of Underwater Autonomous Vehicle Based on Averaged Sub-gradient Integral Sliding Mode Method
The aim of this study is to develop robust guidance laws for the control motion of an underwater autonomous vehicle (UAV) in a three-dimensional (3D)...
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Hydrodynamic Performance of Air-Filled Wave Attenuator for Wave Control: Experimental Study
Numerous types of floating breakwaters have been proposed, tested and commercialized in the past decades. The majority of these breakwaters are made...