Results 41 to 50 of about 859 (124)

Quasistatic Nonlinear Analysis of a Drill Pipe in Subsea Xmas Tree Installation

Mathematical Problems in Engineering, Volume 2019, Issue 1, 2019., 2019
To analyse the stress and deformation of a drill pipe during the lowering of a subsea Xmas tree, a mechanical analytical model and equation were established based on Euler‐Bernoulli beam theory. The wave phase is selected as one of the variable parameters for analysis of the deformation and stress of the drill pipe.
Haozhi Qin, Jian Liu, Wensheng Xiao, Bingxiang Wang, Roberto G. Citarella   +4 more
wiley   +1 more source

EFFECTS OF DIFFERENT WAVE SPECTRA ON DYNAMIC POSITIONING ACCURACY

Brodogradnja, 2018
To achieve high accuracy of positioning method for ships which have good mobility and are uninfluenced by the water depth, the dynamic positioning system has come into being.
Xinkuan Yan, Chaohe Chen, Tianhui Fan
doaj   +1 more source

Modeling, Validation, and Control of the IEA‐15 MW Reference Wind Turbine and VolturnUS‐S Platform

Wind Energy, Volume 29, Issue 5, May 2026.
ABSTRACT This paper presents the acausal modeling, validation, and control of floating offshore wind turbines (FOWTs). The model simulates the IEA‐15 MW reference turbine and the semi‐submersible VolturnUS‐S platform utilizing a Control‐oriented, Reconfigurable, and Acausal Floating Turbine Simulator (CRAFTS), which integrates the key coupled aero ...
Dung Tran, Doyal Sarker, Kazi Mohsin, Saad Rahman, Md Sakif, Tri Ngo, Roger Bergua, Daniel Zalkind, Jason Jonkman, Tuhin Das   +9 more
wiley   +1 more source

A Numerical Approach to the Dynamic Response of the Deployment System during a Circular Cylinder Crossing through the Wave Zone

Shock and Vibration, Volume 2017, Issue 1, 2017., 2017
The dynamic response of the deployment system while deploying a circular cylinder crossing wave surface and the following submerging process are investigated numerically. The present numerical approach is based on the combination of solution methods of cable dynamics and computational fluid dynamics (CFD).
Xiaozhou Hu, Daojun Cai, Yiyao Jiang, Abdul Qadir Bhatti   +3 more
wiley   +1 more source

Design of a Digital Twin System for Deepwater Installation Systems

Digital Twins and Applications, Volume 3, Issue 1, January/December 2026.
A digital twin‐based system is proposed to enhance the safety and efficiency of deepwater subsea installation by enabling real‐time monitoring, predictive analysis and intelligent decision‐making. The system integrates simulation, sensing and VR interaction to support planning and operations in complex offshore environments.
Song Chen, Zhifeng Wang, Shuo Wang, Lizhi Duan, Jianhang Wu, Renhui Wu, Yan Qu   +6 more
wiley   +1 more source

Dynamic Model and Control of a New Underwater Three‐Degree‐of‐Freedom Tidal Energy Converter

Mathematical Problems in Engineering, Volume 2015, Issue 1, 2015., 2015
There is currently a growing interest in developing devices that can be used to exploit energy from oceans. In the recent past, the search for oil and gas at ever‐greater depths has led to the evolution of devices with which these resources are extracted. These devices range from those that simply rest on the seabed to those that are fully floating and
José A. Somolinos, Amable López, Marina P. Portilla, Rafael Morales, Sergey A. Suslov   +4 more
wiley   +1 more source

Model Test on Motion Responses and Anchor Reaction Forces of an Articulated Tower-Type Buoy Structure in Waves [PDF]

한국해양공학회지, 2019
A series of model tests was performed to evaluate the survivability of an articulated tower-type buoy structure under harsh environmental conditions. The buoy structure consisted of three long pipes, a buoyancy module, and top equipment.
Yong-Ju Kwon, Bo Woo Nam, Nam Woo Kim, Young-Uk Won, In-Bo Park, Sea-Moon Kim   +5 more
doaj   +1 more source

Soil–Anchor Interaction Effects on Dominant Frequencies in Offshore Wind Turbines Supported by Tension Leg Platforms

Wind Energy, Volume 28, Issue 7, July 2025.
ABSTRACT This study presents an experimental investigation into the influence of anchor–soil interaction on the dynamic behaviour of tension leg platform (TLP)–type floating wind turbines. A 1/100 scale model of the NREL 5‐MW reference wind turbine was fabricated using a 3D printer, with scaling parameters determined based on Froude scaling laws to ...
Hasan Emre Demirci, Oğuzhan Toğay, Mutlu Seçer   +2 more
wiley   +1 more source

Mathematical Model of Pipeline Abandonment and Recovery in Deepwater

Journal of Applied Mathematics, Volume 2014, Issue 1, 2014., 2014
In offshore oil and gas engineering the pipeline abandonment and recovery is unavoidable and its mechanical analysis is necessary and important. For this problem a third‐order differential equation is used as the governing equation in this paper, rather than the traditional second‐order one.
Xia-Guang Zeng, Meng-Lan Duan, Chen An, M. Montaz Ali   +3 more
wiley   +1 more source

Fatigue Analysis of Inter-Array Power Cables between Two Floating Offshore Wind Turbines Including a Simplified Method to Estimate Stress Factors

Journal of Marine Science and Engineering, 2023
The use of floating offshore wind farms for electrical energy supply is expected to rise significantly over the coming years. Suspended inter-array power cables are a new design to connect floating offshore wind turbines (FOWTs) with shorter cable ...
Dennis Beier, Anja Schnepf, Sean Van Steel, Naiquan Ye, Muk Chen Ong   +4 more
doaj   +1 more source