Results 11 to 20 of about 1,280 (210)

The Experimental Study of Dynamic Response of Marine Riser under Coupling Effect of Multiparameter

open access: yesJournal of Marine Science and Engineering, 2023
In order to investigate the dynamic response of a marine riser under the coupling effect of multiparameter, a model experiment of a marine riser was designed and carried out. The main parameters of the model test were divided into riser design parameters
Run Zheng   +5 more
doaj   +4 more sources

A Mathematical Model for Dynamic Analysis of a Flexible Marine Riser Connected to a Floating Vessel [PDF]

open access: yesModeling, Identification and Control, 1982
A mathematical model for simulation of a flexible marine riser connected to a floating vessel is presented. The model is used for dynamic analysis of marine operations which include a riser and a floating vessel.
Audun Otteren
doaj   +2 more sources

Parametric analysis on the global design of flexible riser under different environmental conditions using OrcaFlex. [PDF]

open access: yesPLoS ONE
The application of flexible risers has led to increased production of fluid contents in the marine industry. This paper presents the design challenges of a flexible riser subjected to internal pressure under deep-water conditions, at a water depth of ...
Chiemela Victor Amaechi   +6 more
doaj   +2 more sources

Vibration Control of Marine Top Tensioned Riser with a Single Tuned Mass Damper

open access: yesJournal of Marine Science and Engineering, 2020
The study of the Tuned Mass Damper (TMD) on Top Tensioned Risers (TTRs) through the application of numerical analysis is of great significance for marine engineering.
Jixiang Song   +4 more
doaj   +3 more sources

VIV Fracture Investigation into 3D Marine Riser with a Circumferential Outside Surface Crack

open access: yesShock and Vibration, 2021
Vortex-induced vibration (VIV) is one of the most common dynamic mechanisms that cause damage to marine risers. Hamilton’s variational principle is used to establish a vortex-induced vibration (VIV) model of a flexible riser in which the wake oscillator ...
Jun Liu   +5 more
doaj   +2 more sources

Distributed Fiber Optic Sensing for Real-Time Monitoring of Gas in Riser during Offshore Drilling [PDF]

open access: yesSensors, 2020
Effective well control depends on the drilling teams’ knowledge of wellbore flow dynamics and their ability to predict and control influx. Unfortunately, detection of a gas influx in an offshore environment is particularly challenging, and there ...
Giuseppe Feo   +4 more
doaj   +2 more sources

In-Line and Cross-Flow Coupling Vibration Response Characteristics of a Marine Viscoelastic Riser Subjected to Two-Phase Internal Flow

open access: yesShock and Vibration, 2021
This paper studies the in-line and cross-flow coupling vibration response characteristics of a marine viscoelastic riser subjected to two-phase internal flow and affected by the combined effects of several parameters including the volume fraction of gas ...
Xueping Chang   +3 more
doaj   +2 more sources

Vibration control of a viscoelastic flexible marine riser with vessel dynamics

open access: yesMathematical Modelling and Analysis, 2018
In this work, we investigate the asymptotic behavior of solutions of a viscoelastic flexible marine riser with vessel dynamics. Under a suitable control applied at the top end of the riser, we establish explicit decay rates for a large class of ...
Lamia Seghour   +3 more
doaj   +3 more sources

Global Asymptotic Stability of Solutions to Nonlinear Marine Riser Equation [PDF]

open access: yesJournal of Inequalities and Applications, 2010
This paper studies initial boundary value problem of fourth-order nonlinear marine riser equation. By using multiplier method, it is proven that the zero solution of the problem is globally asymptotically stable.
Gür Şevket
doaj   +2 more sources

Simulation Study of Reentry Dynamics of a Deep-Water Drilling Riser System Based on Model Predictive Control

open access: yesShanghai Jiaotong Daxue xuebao, 2023
A marine drilling riser at normal operation condition is required to disconnect the lower marine riser package (LMRP) and blow-out preventer (BOP) in case of severe weather. When the weather gets fine, it must reconnect the LMRP and the BOP. This process
ZHANG Chenyu, MENG Shuai
doaj   +1 more source

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