Numerical simulation of the mooring capacity comparison of the subsea suspended manifold with two mooring schemes

2022 ◽  
pp. 147509022110701
Author(s):  
Ning Xu ◽  
Honglin Zhao ◽  
Yufang Li ◽  
Yingying Wang ◽  
Shimin Zhang
Keyword(s):  
Numerical Simulation ◽  
Production System ◽  
System Model ◽  
Mooring System ◽  
Conceptual Scheme ◽  
Fluid Density ◽  
Next Generation ◽  
Motion Response ◽  
Steel Catenary Riser ◽  
Steep Wave

The next-generation underwater production system (NUPS) is based on the suspension cluster manifold (SCM) as a new conceptual scheme. SCM mooring stability is essential for establishing NUPS. Therefore, comparing the SCM mooring stability in different mooring systems is vital for evaluating system adaptability. This paper detailed two mooring schemes designed for the SCM, including the steel catenary riser (SCR) mooring system and the new steep wave (NSWR) mooring system. OrcaFlex software was used to establish the mooring system model, analyzing the static motion response of the SCM under the current and fluid density. Furthermore, the mooring system adaptability in the cluster wellhead layout was also evaluated and compared. The results showed that the maximum offset of the SCM with the SCR mooring system was within 2 m under the current, while the deflection of the SCM with the NSWR mooring system was within 1.5° in extreme fluid densities. Furthermore, the SCM with the SCR mooring system displayed superior station-keeping capability in the current, while the NSWR mooring system exhibited better stability when transporting extreme fluid densities and was more adaptable in cluster wellhead layouts.

Mooring Effect on Wave Frequency Response of Round Shape FPSO

2015 ◽  
Vol 74 (5) ◽  
Author(s):  
C. L. Siow ◽  
J. Koto ◽  
H. Yasukawa ◽  
A. Matsuda ◽  
D. Terada ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Model Experiment ◽  
Wave Frequency ◽  
Mooring System ◽  
Simulation Test ◽  
Mooring Lines ◽  
Motion Response ◽  
Motion Data ◽  
Model Scale ◽  
Round Shape

This paper presents the motions response of moored Round Shape FPSO model due to the wave effect. The proposed of this research is analyzed the possibility of model motion response affected by different mooring system attach to the model. Model experiment was applied in this research to collect motion data for the study. Besides, the numerical simulation using diffraction potential, diffraction potential with Morison Heave correction and ANSYS frequency domain study were also applied in this research to generate comparative data to the experimental results. To investigate the effect of the mooring system to motion response, the model experiment was firstly conducted by attached model scale catenary mooring lines to Round Shape FPSO model. After that, the experiment was repeated by attached model scale taut mooring lines to the same model. The results obtain from the regular wave experiment tests and numerical simulation test were presented in this paper. This research concluded that the mooring systems would not give significant effect to wave frequency motion response after compared the motion result obtain from model experiment conducted using different mooring system.  

Numerical Simulation of Motion Response of Multi-Floating Body System Considering Different Gap Between TLP and TAD

2020 ◽  
Author(s):  
Zhigang Zhang ◽  
Shanjun Bao ◽  
Zhaogang Ding ◽  
Zhiyuan Wei ◽  
Haibo Sui ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Floating Body ◽  
Engineering Practice ◽  
Mooring System ◽  
Floating Bodies ◽  
Motion Response ◽  
Significant Difference ◽  
Drilling Operations ◽  
Drilling System ◽  
Simulation Results

Abstract Tender-assisted drilling system meets the strict requirements of deck space of the drilling platform, and provides a relatively safe and comfortable working environment for the staff, which has been widely used in drilling operations in recent years. The significant difference between multi-floating body and single offshore platform is that there may be risk of collision between the floating bodies under extreme metocean conditions or in emergency of mooring system failure. In order to prevent the collision during drilling operations, the initial gap between floating bodies should be designed carefully and provide a reasonable scheme to ensure the safety of the drilling system and the feasibility of drilling operations. Therefore, based on the three dimensional potential flow theory, frequency domain and time domain numerical simulation of the motion response of TLP and TAD is carried out according to the marine environment of West Africa with extreme metocean conditions, the effect of different initial gap on the motion performance of floating bodies is explored and the mechanical characteristics of the mooring system are analyzed. Thus, the reasonable initial gap between TLP and TAD is determined by comparing the simulation results. In general, the numerical simulation results of tender-assisted drilling system may provide reference for engineering practice to some extent.

Study on the Integrated Design of Underground Construction Lighting and Ventilation System

2011 ◽  
Vol 374-377 ◽  
pp. 702-705
Author(s):  
Wei Feng ◽  
Hui Min Li
Keyword(s):  
Numerical Simulation ◽  
Thermal Environment ◽  
Ventilation System ◽  
Integrated Design ◽  
Structure Design ◽  
Light Environment ◽  
System Model ◽  
Underground Construction ◽  
New Type

In the underground building, Light environment and thermal environment is poorer, in order to improve the problem, this paper brings forward a new type of lighting and ventilation system model; discusses the principle and characteristics of transmission; and analyses the question that influences lighting and ventilated effect in the application. Structure design and numerical simulation is the focus of the next step.

Ultra-Deepwater Production System: Model Test Study of Cylindrical FPSO in GoM Hurricane Conditions

2017 ◽  
Author(s):  
J. Vidic-Perunovic ◽  
L. Lee ◽  
E. B. Glomnes ◽  
R. S. Mercier ◽  
W. J. Head
Keyword(s):  
Model Test ◽  
Production System ◽  
System Model ◽  
Test Study

scholarly journals Analysis of the Efficiency of Port Container Terminals with the Use of the Data Envelopment Analysis Method of Relative Productivity Evaluation

2017 ◽  
Vol 25 (1) ◽  
pp. 9-15 ◽  
Author(s):  
Bogusz Wiśnicki ◽  
Leszek Chybowski ◽  
Maksymilian Czarnecki
Keyword(s):  
Data Envelopment Analysis ◽  
Production System ◽  
Process Analysis ◽  
Transport Processes ◽  
Container Terminals ◽  
System Model ◽  
Data Envelopment ◽  
Analysis Method ◽  
Level Of Automation ◽  
Relative Productivity

Abstract The article presents a method for evaluating the efficiency of port container terminals. The research was conducted for nine European terminals which use different handling technologies. The terminals have been divided due to the level of automation of transport processes. In the efficiency research DEA (Data Envelopment Analysis) method is applied, that was previously used in studies of the relative productivity in the industry. This method allows you to multicriteria process analysis based on the properly selected production system model processing input parameters on output. Conclusions from analysis can be a ground for making a decision on organizational or investment issues.

scholarly journals Using a semi-automated job-shop production system model to prepare students for the challenges of Industrial Cyber-Physical Systems

2019 ◽  
Vol 31 ◽  
pp. 377-383
Author(s):  
Agnes Pechmann ◽  
Jeffrey Wermann ◽  
Armando Walter Colombo ◽  
Maximilian Zarte
Keyword(s):  
Production System ◽  
Job Shop ◽  
Cyber Physical Systems ◽  
System Model ◽  
Physical Systems

The Met Office Hadley Centre next generation Earth System Model

2009 ◽  
Vol 6 (5) ◽  
pp. 052007
Author(s):  
William Collins ◽  
M Doutriaux-Boucher ◽  
C Jones ◽  
F O'Connor ◽  
I Totterdell
Keyword(s):  
Earth System Model ◽  
System Model ◽  
Earth System ◽  
Next Generation ◽  
Hadley Centre

Study on the Residual Coal Distribution and the Improving Measures

2014 ◽  
Vol 556-562 ◽  
pp. 822-825
Author(s):  
He Bing Luan
Keyword(s):  
Numerical Simulation ◽  
Coal Mine ◽  
Production System ◽  
Recovery Rate ◽  
Distribution Characteristics ◽  
The Core ◽  
Residual Coal ◽  
Core Problem

The core problem of fully mechanized top-coal caving technology is to accurately grasp residual coal distribution characteristics and improve the recovery rate to the highest possible. Based on the top-caving working site in some coal mine, combined with the numerical simulation on the residual coal in end roadway, the distribution of residual coal is analyzed. Corresponding improvements on the production system have been proved to be efficient for recovering the residual coal.

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