Menglan Duan
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View article: Hydrodynamic Performance and Motion Prediction Before Twin-Barge Float-Over Installation of Offshore Wind Turbines
Hydrodynamic Performance and Motion Prediction Before Twin-Barge Float-Over Installation of Offshore Wind Turbines Open
In recent years, the twin-barge float-over method has been widely used in offshore installations. This paper conducts numerical simulation and experimental research on the twin-barge float-over installation of offshore wind turbines (TBFOI…
View article: Investigation of global and local structural response of Semi-submersible FOWT using hydro-structure interaction in the frequency domain
Investigation of global and local structural response of Semi-submersible FOWT using hydro-structure interaction in the frequency domain Open
The impact of wave loads on the structural integrity of floating foundation for wind turbine is crucial. However, the structural design standards of hull for floating offshore wind turbine (FOWT) are typically derived from the design speci…
View article: Vibrational Responses of an Ultra-Large Cold-Water Pipe for Ocean Thermal Energy Conversion: A Numerical Approach
Vibrational Responses of an Ultra-Large Cold-Water Pipe for Ocean Thermal Energy Conversion: A Numerical Approach Open
The transportation of seawater on a grand scale via an ultra-large cold-water pipe situated within the context of ocean thermal energy conversion (OTEC) floating installations inherently presents challenges associated with instability and …
View article: Investigation of Dynamic Behavior of Ultra-Large Cold-Water Pipes for Ocean Thermal Energy Conversion
Investigation of Dynamic Behavior of Ultra-Large Cold-Water Pipes for Ocean Thermal Energy Conversion Open
Ocean Thermal Energy Conversion (OTEC) is a process that can produce electricity by utilizing the temperature difference between deep cold water and surface warm water. The cold-water pipe (CWP) is a key component of OTEC systems, which tr…
View article: Effects of Laying Depth and Pipe Arc Length on the Mechanical Performance of Large-Diameter Cold-Water Pipes during Float-and-Sink Installation
Effects of Laying Depth and Pipe Arc Length on the Mechanical Performance of Large-Diameter Cold-Water Pipes during Float-and-Sink Installation Open
The successful operation of a large-diameter cold water pipeline installation is crucial for harnessing the potential of ocean thermal energy conversion. However, there is a shortage of research focused on mechanical performance analysis d…
View article: Analysis of the Reliability of Subsea Clamp Connector Based on Multiple Response Surface Methodology
Analysis of the Reliability of Subsea Clamp Connector Based on Multiple Response Surface Methodology Open
The subsea clamp connector is susceptible to sealing and locking failures over its lifetime in harsh marine environments and complex loading conditions, posing a serious challenge to the safe development of subsea oil and gas fields. Accur…
View article: Investigation on Dynamic Behavior of Ultra-Large Cold-water Pipe for Ocean Thermal Energy Conversion
Investigation on Dynamic Behavior of Ultra-Large Cold-water Pipe for Ocean Thermal Energy Conversion Open
Ultra-large cold-water pipes (CWP) may present structural instability phenomenon under complex and variable operating conditions, and the current theoretical analysis rarely takes into account the influence of multiple key parameters at th…
View article: Investigation on Dynamic Behavior of Ultra-Large Cold-water Pipe for Ocean Thermal Energy Conversion
Investigation on Dynamic Behavior of Ultra-Large Cold-water Pipe for Ocean Thermal Energy Conversion Open
Ultra-large cold-water pipes (CWP) may present structural instability phenomenon under complex and variable operating conditions, and the current theoretical analysis rarely takes into account the influence of multiple key parameters at th…
View article: Experimental Study on Vortex-Induced Vibration of Tension Leg and Riser for Full Depth Mooring Tension Leg Platform
Experimental Study on Vortex-Induced Vibration of Tension Leg and Riser for Full Depth Mooring Tension Leg Platform Open
According to the geometric parameters of the tension leg platform, the test model was made with a scale ratio of 1:61. The model was used to conduct the full-depth simulation test of uniform flow and wave current combination in the test po…
View article: Experimental and Numerical Study of Lateral Indentation for Pipe-in-Pipe Structures
Experimental and Numerical Study of Lateral Indentation for Pipe-in-Pipe Structures Open
Pipe-in-pipe (PIP) flowlines have been widely arranged in offshore oil and gas fields for transportation, to achieve a significant thermal insulation capacity and outstanding resistance to external loads. However, the lateral indentation m…
View article: An Interface Parametric Evaluation on Wellbore Integrity during Natural Gas Hydrate Production
An Interface Parametric Evaluation on Wellbore Integrity during Natural Gas Hydrate Production Open
Based on the whole life cycle process of the economic exploitation of natural gas hydrate, this paper proposes the basic problem of stabilizing the wellbore for the basic conditions that must be met to ensure the integrity of the wellbore …
View article: Committee V.8: Subsea Technology
Committee V.8: Subsea Technology Open
Committee Mandate Mandate: Concern for the safety and structural reliability of subsea production systems for oil and gas offshore. This shall include subsea equipment for production and processing, flowlines and risers, with emphasis on d…
View article: Discussion of Committee V.8: Subsea Technology
Discussion of Committee V.8: Subsea Technology Open
Discussion Discussers’ reports and floor discussions, including the replies by the committees, are included in this Volume 3 discussion paper. Committee Mandate Concern for the safety and structural reliability of subsea production systems…
View article: MATHEMATICAL MODEL AND ANALYTICAL SOLUTION FOR THE VIBRATION OF INCLINED FLUID-TRANSPORTING SUBMARINE PIPELINES
MATHEMATICAL MODEL AND ANALYTICAL SOLUTION FOR THE VIBRATION OF INCLINED FLUID-TRANSPORTING SUBMARINE PIPELINES Open
Due to the complexity of submarine environments, the nature of the dynamic response of free-spanning submarine pipelines, particularly inclined pipelines, is unclear. This paper aims to theoretically analyze the vibration behaviors of incl…
View article: Prediction of the Dynamic Response of a Long Flexible Riser under External and Internal Flow: Integral Transform Solution
Prediction of the Dynamic Response of a Long Flexible Riser under External and Internal Flow: Integral Transform Solution Open
This paper aimed to analyze the dynamic response of a pinned-pinned riser subject to external and internal flow using the generalized integral technique (GITT). A nonlinear wake oscillator model is used to simulate the drag and lift force …
View article: Evaluation of the Double Snap-Through Mechanism on the Wave Energy Converter’s Performance
Evaluation of the Double Snap-Through Mechanism on the Wave Energy Converter’s Performance Open
Lower efficiencies induce higher energy costs and pose a barrier to wave energy devices’ commercial applications. Therefore, the efficiency enhancement of wave energy converters has received much attention in recent decades. The reported r…
View article: Buckling Properties of a Subsea Function Chamber for Oil/Gas Processing in Deep Waters
Buckling Properties of a Subsea Function Chamber for Oil/Gas Processing in Deep Waters Open
Due to the complexity of installations and connections of subsea production equipment and the massive structures involved in a challenging environment, the failure of subsea production equipment could induce enormous loss to the safety and…
View article: Study on microscopic growth mechanism of emulsion system hydrate
Study on microscopic growth mechanism of emulsion system hydrate Open
In order to master the microscopic growth mechanism of natural gas hydrate, a series of experiments were carried out using a high-pressure hydrate flow loop. The microscopic physical information of the growth of hydrates in the emulsion sy…
View article: Numerical simulation of creep behaviour of flexible riser inner liner
Numerical simulation of creep behaviour of flexible riser inner liner Open
The creep behaviour of an inner liner, one of the reasons for carcass tearing, may affect the structural integrity of flexible risers. This has been previously discussed without conclusive results owing to complex structure and time-depend…
View article: Axial mechanical experiments of unbonded flexible pipes
Axial mechanical experiments of unbonded flexible pipes Open
Axial structural damping behavior induced by internal friction and viscoelastic properties of polymeric layers may have an inevitable influence on the global analysis of flexible pipes. In order to characterize this phenomenon and axial me…
View article: A novel centralizer layout scheme of TTR pipe-in-pipe system applied for vibration mitigation
A novel centralizer layout scheme of TTR pipe-in-pipe system applied for vibration mitigation Open
The top tension riser (TTR) pipe-in-pipe system which includes outer pipes and inner pipes is widely used in offshore oil and gas development for production, water injection, completion, drilling and gas lift. Due to the complex external e…
View article: A New Mathematical Model Concept and Challenges in relation to the Layout of Cluster Manifolds
A New Mathematical Model Concept and Challenges in relation to the Layout of Cluster Manifolds Open
The cluster manifold becomes an essential part in a subsea production system, which can gather the production fluid from subsea wells and distribute water, gas and chemical agents from the floating production system to each subsea well.On …
View article: Research on the shear stress of single-lap joints using a variational method
Research on the shear stress of single-lap joints using a variational method Open
A great amount of research has been conducted on adhesive joints as they are widely used in industry. In this study, in order to simplify the calculations and obtain more accurate results for the potential energy of adhesive joints, a vari…