Nianxin Ren
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View article: Dynamic Response Analysis of a Novel Tension-Leg Dual-Module Offshore Wind Turbine System During Both Installation and Removal Processes
Dynamic Response Analysis of a Novel Tension-Leg Dual-Module Offshore Wind Turbine System During Both Installation and Removal Processes Open
To facilitate both the installation and the removal of floating offshore wind turbines (FOWTs), a novel tension-leg dual-module offshore wind turbine system has been proposed. This system primarily consists of a DTU 10 MW wind turbine (WT)…
View article: The Effect of the Fillets on Submarine Wake Field and Propeller Unsteady Bearing Force
The Effect of the Fillets on Submarine Wake Field and Propeller Unsteady Bearing Force Open
The uniformity of the wake on the submarine propeller disk is the key factor affecting the vibration and noise performance of the propeller. To study the influence of the fillets on the uniformity of submarine wake field and propeller unst…
View article: Investigation on Effects of Mooring Line Fractures and Connector Failures for A Hybrid Modular Floating Structure System
Investigation on Effects of Mooring Line Fractures and Connector Failures for A Hybrid Modular Floating Structure System Open
The present work reports a Hybrid Modular Floating Structure (HMFS) system with typical malfunction conditions. The effects of both fractured mooring lines and failed connectors on main hydrodynamic responses (mooring line tensions, module…
View article: Hydrodynamic Analysis of a Modular Integrated Floating Structure System Based on Dolphin-Fender Mooring
Hydrodynamic Analysis of a Modular Integrated Floating Structure System Based on Dolphin-Fender Mooring Open
For both the expansion of important islands/reefs and the development of marine resources in South China Sea, a modular integrated floating structure (MIFS) system with tidal self-adaptation dolphin-fender mooring (DFM) has been proposed. …
View article: Hydrodynamic Analysis of a Novel Modular Floating Structure System Integrated with Floating Artificial Reefs and Wave Energy Converters
Hydrodynamic Analysis of a Novel Modular Floating Structure System Integrated with Floating Artificial Reefs and Wave Energy Converters Open
A novel modular floating structure (MFS) system moored by tension legs was proposed, which is composed of hexagonal floating modules, floating artificial reefs and wave energy converters (WECs). The integration of floating artificial reefs…
View article: Hydrodynamic Analysis of a Modular Floating Structure with Tension-Leg Platforms and Wave Energy Converters
Hydrodynamic Analysis of a Modular Floating Structure with Tension-Leg Platforms and Wave Energy Converters Open
This work presents a modular floating structure, which consists of five inner tension-leg platforms and two outermost wave energy converters (denoted as MTLPW). The hydrodynamic interaction effect and the mechanical coupling effect between…
View article: Comparison of impulsive wave forces on a semi-submerged platform deck, with and without columns and considering air compressibility effects, under regular wave actions
Comparison of impulsive wave forces on a semi-submerged platform deck, with and without columns and considering air compressibility effects, under regular wave actions Open
The decks of oil-extracting platforms could be damaged by great wave impact loads under harsh ocean conditions. Our understanding of the pressure distribution characteristics under the deck, especially those influenced by columns, is incom…
View article: A Comprehensive Study on the Serbuoys Offshore Wind Tension Leg Platform Coupling Dynamic Response under Typical Operational Conditions
A Comprehensive Study on the Serbuoys Offshore Wind Tension Leg Platform Coupling Dynamic Response under Typical Operational Conditions Open
A new type of offshore wind tension leg platform (TLP) connected with a series of buoys (Serbuoys-TLP) is proposed. With the consideration of coupling effect, derivations on the stiffness of the Serbuoys-TLP mooring lines are given. The co…
View article: A Comprehensive Study of the Wave Impact Loads on an Inclined Plate
A Comprehensive Study of the Wave Impact Loads on an Inclined Plate Open
Water wave impact on a wet deck is an important issue in ocean engineering, and the plate-shaped structure in the splash zone tends to suffer tremendous impact loads. This work presents a method for predicting the wave slamming uplift forc…
View article: Parametric Study of Drivetrain Dynamics of a Wind Turbine Using the Multibody Dynamics
Parametric Study of Drivetrain Dynamics of a Wind Turbine Using the Multibody Dynamics Open
Wind energy has become one of the most cost-effective and environmental friendly renewable energy resources among all exploited renewable energy. However, the failure of gearbox contributes most of the downtime for wind turbine system. Dyn…
View article: Experimental Study on the Performance of a Crashworthy Device for the Monopile Offshore Wind Turbine against Ship Impact
Experimental Study on the Performance of a Crashworthy Device for the Monopile Offshore Wind Turbine against Ship Impact Open
In the present work, a crashworthy device for a monopile offshore wind turbine has been proposed, which consists of the inner two-layer rubber torus and the outer thin steel shell. The performance of the crashworthy device against ship imp…
View article: Dynamic response of a semi-submersible floating offshore wind turbine under flooded column damage
Dynamic response of a semi-submersible floating offshore wind turbine under flooded column damage Open
One of the main aspect of floating offshore wind turbine (FOWT) operating in normal is the safety of its cabin.The ballast water in cabin is closely related to the stability of FOWT.The dynamic response of the motion and the mooring lines …
View article: The typhoon effect on the aerodynamic performance of a floating offshore wind turbine
The typhoon effect on the aerodynamic performance of a floating offshore wind turbine Open
The wind energy resource is considerably rich in the deep water of China South Sea, where wind farms have to face the challenge of extreme typhoon events. In this work, the typhoon effect on the aerodynamic performance of the 5MW OC3-Hywin…
View article: Operational Performance of a Combined TLP-type Floating Wind Turbine and Heave-type Floating Wave Energy Converter System
Operational Performance of a Combined TLP-type Floating Wind Turbine and Heave-type Floating Wave Energy Converter System Open
This paper deals with a novel concept by combining a tension leg platform -type floating wind turbine and a heavetype wave energy converter that is referred as the 'TWWC' (TLP-WT-WEC-Combination) system herein.Concept feasibility study has…