Ling WAN - Academia.edu (original) (raw)

Papers by Ling WAN

Research paper thumbnail of Numerical study of hydrodynamic responses for a combined concept of semisubmersible wind turbine and different layouts of a wave energy converter

Ocean Engineering, Mar 1, 2023

Research paper thumbnail of Hydrodynamic Interactions of Tank and Barge System for Modular Floating Oil Storage Tank Facility

Research paper thumbnail of Initial Design of a Double Curved Floating Bridge and Global Hydrodynamic Responses Under Environmental Conditions

In this paper, a floating bridge concept is proposed. This bridge concept comprises a two opposit... more In this paper, a floating bridge concept is proposed. This bridge concept comprises a two oppositely curves in plan, which enables the cancellation of the axial forces at the bridge as one arch will be under compression while the other arch is in tension due to environmental forces acting in one direction. The road deck is carried by truss structures that are kept above the water by several elliptical cylindrical pontoons. To reduce drag load, the cross sectional area facing the current is reduced as much as possible, while the buoyancy is kept the same based on the initial weight estimation. Initial design consideration and methodology of a double curved floating bridge is presented, and a numerical model is established for analyzing this concept. Hydrodynamic and structural dynamic aspects are included in the numerical model. Parametric study of the bridge structural rigidity is performed to investigate the effect to the responses. White noise, regular and irregular wave simulations are carried out to investigate the dynamic responses of the floating bridge under different conditions.

Research paper thumbnail of An innovative mooring system for floating storage tanks and stochastic dynamic response analysis

Ocean Engineering, Dec 1, 2018

Research paper thumbnail of Global dynamic response analysis of oil storage tank in finite water depth: Focusing on fender mooring system parameter design

Ocean Engineering, 2018

A modular floating concept for oil storage is proposed. The concept is composed of several modula... more A modular floating concept for oil storage is proposed. The concept is composed of several modular floating tanks and barges. The floating tanks are self-stable and designed for storage of oil and hydrocarbon material. The barges provide platforms for equipment and workers quarters, and enclose the floating tanks through mooring fender systems. The whole concept is then moored by mooring dolphins. This concept is designed for finite water depth application, however, potential application for deep water condition is also investigated. In this study, only single floating tank is investigated with both empty and full tank conditions considered. Different mooring fender configuration designs are the focus. It is assumed that the barges are fixed in the study of single tank dynamic properties, and multi-body hydrodynamic is neglected. Different regular wave conditions are used for the study of the dynamic performance of the tank under various fender mooring system parameters. Irregular wave together with wind and current for 100 year return period are also applied for the study of the tank dynamic performance. At last, sensitivity study of the viscous effects is performed.

Research paper thumbnail of Dynamic Response Analysis of Floating Storage Tank System Considering Hydrodynamic and Mechanical Interactions

For better utilization of ocean and coastal space, hydrocarbon products can be stored in the floa... more For better utilization of ocean and coastal space, hydrocarbon products can be stored in the floating tanks, which can be enclosed by barge system. The barge system can be moored through pile foundations. The tanks are moored through marine fenders connected to barges. In the system, hydrodynamic and mechanical interaction problems are involved. Different scenarios including two barge, three barge and four barge systems are investigated. In addition, one tank plus four barge system are also studied. Hydrodynamic interactions between different bodies are firstly studied to investigate the significance of interaction. Different barge configurations are then considered in terms of mechanical interaction significance. Tank dynamic responses with and without hydrodynamic interaction are evaluated.

Research paper thumbnail of Numerical investigation of interface capturing method by the Rayleigh-Taylor instability, dambreak and solitary wave problems

Ocean Engineering, Dec 1, 2019

Research paper thumbnail of Initial Design of a Double Curved Floating Bridge and Global Hydrodynamic Responses Under Environmental Conditions

Volume 9: Offshore Geotechnics; Torgeir Moan Honoring Symposium, 2017

In this paper, a floating bridge concept is proposed. This bridge concept comprises a two opposit... more In this paper, a floating bridge concept is proposed. This bridge concept comprises a two oppositely curves in plan, which enables the cancellation of the axial forces at the bridge as one arch will be under compression while the other arch is in tension due to environmental forces acting in one direction. The road deck is carried by truss structures that are kept above the water by several elliptical cylindrical pontoons. To reduce drag load, the cross sectional area facing the current is reduced as much as possible, while the buoyancy is kept the same based on the initial weight estimation. Initial design consideration and methodology of a double curved floating bridge is presented, and a numerical model is established for analyzing this concept. Hydrodynamic and structural dynamic aspects are included in the numerical model. Parametric study of the bridge structural rigidity is performed to investigate the effect to the responses. White noise, regular and irregular wave simulatio...

Research paper thumbnail of Sloshing Effect Due to Hydrodynamic Interaction and Hydroelastic Response of Enclosed Large Floating Multi-Bodies

Research paper thumbnail of A Hydrodynamic Analysis of Motion Coupling Effect of Floating Storage Tank Supported by Marine Fenders

This study concerns a new concept of floating oil storage facility, to be deployed in coastal wat... more This study concerns a new concept of floating oil storage facility, to be deployed in coastal waters, in which separate oil storage tanks float in an array, separated by a mooring fender system. In this paper, hydrodynamic properties of a single module are investigated numerically. The effects of different mooring fender parameters including fender stiffness and fender position on the coupled motions are studied. Design criteria and a design approach for the marine fender selection are proposed. Next, time-domain simulations under random waves are performed. Finite water depth effects are taken into consideration. Then a brief parametric study on sloshing phenomenon in fendersupported tanks is conducted. Results show that a carefully designed marine fender will help reduce the roll and pitch motions of the storage tank, and thus function as a stabilizer. This analysis is the basis of a global hydrodynamic response analysis for multiple tanks, including the effects of multibody hydro...

Research paper thumbnail of Dynamic Response of Three Combined Offshore Wind and Wave Energy Conversion Concepts Applied in Varied Water depth

Research paper thumbnail of Global dynamic response analysis of oil storage tank in finite water depth: Focusing on fender mooring system parameter design

Research paper thumbnail of An innovative mooring system for floating storage tanks and stochastic dynamic response analysis

Ocean Engineering, 2018

A modular floating concept for oil storage is proposed. The concept is composed of modular floati... more A modular floating concept for oil storage is proposed. The concept is composed of modular floating tanks and barges. The floating tanks are self-stable and designed for storage of oil and hydrocarbon material. The barges are connected together and moored by mooring dolphins. Mooring system is designed between barges and the tanks enclosed by the barges. An innovative mooring system that consists of several mooring ropes besides the fender system is proposed and investigated in this study. The mooring ropes are stretchy and can carry the mooring loads in all the loading and environmental conditions. Single floating tank is investigated under different filling levels, i.e. empty, full and partially filled conditions. It is assumed in this study that the barges are fixed, and multi-body hydrodynamic interaction is neglected. Linear and nonlinear mooring rope properties are investigated. Failure condition of one of the mooring rope is also considered. Wind, wave and current load effects under 100-year storm are also investigated, as well as the uncertainty analysis in terms of viscous effects.

Research paper thumbnail of Numerical study of hydrodynamic responses for a combined concept of semisubmersible wind turbine and different layouts of a wave energy converter

Ocean Engineering, Mar 1, 2023

Research paper thumbnail of Hydrodynamic Interactions of Tank and Barge System for Modular Floating Oil Storage Tank Facility

Research paper thumbnail of Initial Design of a Double Curved Floating Bridge and Global Hydrodynamic Responses Under Environmental Conditions

In this paper, a floating bridge concept is proposed. This bridge concept comprises a two opposit... more In this paper, a floating bridge concept is proposed. This bridge concept comprises a two oppositely curves in plan, which enables the cancellation of the axial forces at the bridge as one arch will be under compression while the other arch is in tension due to environmental forces acting in one direction. The road deck is carried by truss structures that are kept above the water by several elliptical cylindrical pontoons. To reduce drag load, the cross sectional area facing the current is reduced as much as possible, while the buoyancy is kept the same based on the initial weight estimation. Initial design consideration and methodology of a double curved floating bridge is presented, and a numerical model is established for analyzing this concept. Hydrodynamic and structural dynamic aspects are included in the numerical model. Parametric study of the bridge structural rigidity is performed to investigate the effect to the responses. White noise, regular and irregular wave simulations are carried out to investigate the dynamic responses of the floating bridge under different conditions.

Research paper thumbnail of An innovative mooring system for floating storage tanks and stochastic dynamic response analysis

Ocean Engineering, Dec 1, 2018

Research paper thumbnail of Global dynamic response analysis of oil storage tank in finite water depth: Focusing on fender mooring system parameter design

Ocean Engineering, 2018

A modular floating concept for oil storage is proposed. The concept is composed of several modula... more A modular floating concept for oil storage is proposed. The concept is composed of several modular floating tanks and barges. The floating tanks are self-stable and designed for storage of oil and hydrocarbon material. The barges provide platforms for equipment and workers quarters, and enclose the floating tanks through mooring fender systems. The whole concept is then moored by mooring dolphins. This concept is designed for finite water depth application, however, potential application for deep water condition is also investigated. In this study, only single floating tank is investigated with both empty and full tank conditions considered. Different mooring fender configuration designs are the focus. It is assumed that the barges are fixed in the study of single tank dynamic properties, and multi-body hydrodynamic is neglected. Different regular wave conditions are used for the study of the dynamic performance of the tank under various fender mooring system parameters. Irregular wave together with wind and current for 100 year return period are also applied for the study of the tank dynamic performance. At last, sensitivity study of the viscous effects is performed.

Research paper thumbnail of Dynamic Response Analysis of Floating Storage Tank System Considering Hydrodynamic and Mechanical Interactions

For better utilization of ocean and coastal space, hydrocarbon products can be stored in the floa... more For better utilization of ocean and coastal space, hydrocarbon products can be stored in the floating tanks, which can be enclosed by barge system. The barge system can be moored through pile foundations. The tanks are moored through marine fenders connected to barges. In the system, hydrodynamic and mechanical interaction problems are involved. Different scenarios including two barge, three barge and four barge systems are investigated. In addition, one tank plus four barge system are also studied. Hydrodynamic interactions between different bodies are firstly studied to investigate the significance of interaction. Different barge configurations are then considered in terms of mechanical interaction significance. Tank dynamic responses with and without hydrodynamic interaction are evaluated.

Research paper thumbnail of Numerical investigation of interface capturing method by the Rayleigh-Taylor instability, dambreak and solitary wave problems

Ocean Engineering, Dec 1, 2019

Research paper thumbnail of Initial Design of a Double Curved Floating Bridge and Global Hydrodynamic Responses Under Environmental Conditions

Volume 9: Offshore Geotechnics; Torgeir Moan Honoring Symposium, 2017

In this paper, a floating bridge concept is proposed. This bridge concept comprises a two opposit... more In this paper, a floating bridge concept is proposed. This bridge concept comprises a two oppositely curves in plan, which enables the cancellation of the axial forces at the bridge as one arch will be under compression while the other arch is in tension due to environmental forces acting in one direction. The road deck is carried by truss structures that are kept above the water by several elliptical cylindrical pontoons. To reduce drag load, the cross sectional area facing the current is reduced as much as possible, while the buoyancy is kept the same based on the initial weight estimation. Initial design consideration and methodology of a double curved floating bridge is presented, and a numerical model is established for analyzing this concept. Hydrodynamic and structural dynamic aspects are included in the numerical model. Parametric study of the bridge structural rigidity is performed to investigate the effect to the responses. White noise, regular and irregular wave simulatio...

Research paper thumbnail of Sloshing Effect Due to Hydrodynamic Interaction and Hydroelastic Response of Enclosed Large Floating Multi-Bodies

Research paper thumbnail of A Hydrodynamic Analysis of Motion Coupling Effect of Floating Storage Tank Supported by Marine Fenders

This study concerns a new concept of floating oil storage facility, to be deployed in coastal wat... more This study concerns a new concept of floating oil storage facility, to be deployed in coastal waters, in which separate oil storage tanks float in an array, separated by a mooring fender system. In this paper, hydrodynamic properties of a single module are investigated numerically. The effects of different mooring fender parameters including fender stiffness and fender position on the coupled motions are studied. Design criteria and a design approach for the marine fender selection are proposed. Next, time-domain simulations under random waves are performed. Finite water depth effects are taken into consideration. Then a brief parametric study on sloshing phenomenon in fendersupported tanks is conducted. Results show that a carefully designed marine fender will help reduce the roll and pitch motions of the storage tank, and thus function as a stabilizer. This analysis is the basis of a global hydrodynamic response analysis for multiple tanks, including the effects of multibody hydro...

Research paper thumbnail of Dynamic Response of Three Combined Offshore Wind and Wave Energy Conversion Concepts Applied in Varied Water depth

Research paper thumbnail of Global dynamic response analysis of oil storage tank in finite water depth: Focusing on fender mooring system parameter design

Research paper thumbnail of An innovative mooring system for floating storage tanks and stochastic dynamic response analysis

Ocean Engineering, 2018

A modular floating concept for oil storage is proposed. The concept is composed of modular floati... more A modular floating concept for oil storage is proposed. The concept is composed of modular floating tanks and barges. The floating tanks are self-stable and designed for storage of oil and hydrocarbon material. The barges are connected together and moored by mooring dolphins. Mooring system is designed between barges and the tanks enclosed by the barges. An innovative mooring system that consists of several mooring ropes besides the fender system is proposed and investigated in this study. The mooring ropes are stretchy and can carry the mooring loads in all the loading and environmental conditions. Single floating tank is investigated under different filling levels, i.e. empty, full and partially filled conditions. It is assumed in this study that the barges are fixed, and multi-body hydrodynamic interaction is neglected. Linear and nonlinear mooring rope properties are investigated. Failure condition of one of the mooring rope is also considered. Wind, wave and current load effects under 100-year storm are also investigated, as well as the uncertainty analysis in terms of viscous effects.