Best Practices for Minimizing Mooring Failures at the Fairlead

2014 ◽  
Author(s):  
Jonathon D. Miller ◽  
Gennine R. Kärrsten ◽  
Curt E. Haveman
Keyword(s):  
Service Life ◽  
Best Practices ◽  
Preventive Maintenance ◽  
New Technologies ◽  
Mooring System ◽  
Floating Structures ◽  
System Service ◽  
Design Life

Although preventive maintenance is not a new concept when dealing with mooring systems, experience shows that the implementation is not always successful. As important as new technologies are in improving mooring integrity, it is equally important to ensure that well-established best practices remain in place. As the industry approaches a period where extending service life of floating structures is desirable, but the existing mooring system has reached the twilight of its service life, the need for properly maintaining the mooring system is more acute. With time on their side, the prudent operator can implement small regular steps to extend mooring system service life. This paper presents methodologies to maximize design life by highlighting design and operational best practices, maintenance and monitoring, and identifying common reasons why these best practices are not implemented.

Research on High Temperature Anti-Abrasion Protection Technology of Thermocouple Cannula

2007 ◽  
Vol 353-358 ◽  
pp. 1765-1768
Author(s):  
Hong Fei Sun ◽  
Can Ming Wang ◽  
Qiang Song ◽  
Qiong Qiong Yan
Keyword(s):  
High Temperature ◽  
Intermetallic Compound ◽  
Service Life ◽  
New Technologies ◽  
Work Conditions ◽  
Protection Method ◽  
Metal Ceramic ◽  
Protection Technology ◽  
Compound Coating ◽  
Ceramic Compound

Abrasion mechanism of thermocouple cannula is studied in this article. For different working position and condition, different material should be selected to ensure the working characteristics of thermocouple cannula. Several protection methods were introduced to prolong the sevice life of thermocouple cannula. 1. M-Al series intermetallic compound coating protection method. 2. Metal/ceramic compound coating protection method. 3. Development of new abrasion-resisting material for high temperature according to some special work conditions of thermocouple cannula. With the adoption of those new technologies, thermocouple cannula’s service life can be prolonged to 3~5 times of that untreated.

scholarly journals ESTIMATION OF BUSINESS VALUE AS AN ELEMENT OF FORMATION OF BUSINESS MODELS OF INDUSTRIAL ENTERPRISES AND AGRICULTURAL COMPLEX IN THE CONDITIONS OF DIGITALIZATION OF THE ECONOMY

2020 ◽  
Author(s):  
Maksym Odnorog ◽  
◽  
Mykhailo Pivtorak ◽  
Oksana Zagorodniuk ◽  
◽  
...  
Keyword(s):  
Best Practices ◽  
Business Models ◽  
Business Processes ◽  
New Technologies ◽  
Digital Technologies ◽  
Economic Security ◽  
Digital Transformation ◽  
Enterprise Management ◽  
Industrial Enterprises ◽  
Digital Management

To date, digital technologies and their widespread practice have formed the potential for completely new business models. However, most organizations are either in the early stages of the digital transformation process, or do not yet dare to form a digital business model that will provide real benefits from digital technologies. In any case, taking into account the enormous pace of global digitalization, it is extremely important to adapt the best practices of digital transformation to the improvement of the Ukrainian economy as soon as possible. Based on this, consider the process of researching new and adapting existing management models. Digital transformation – the introduction of modern technologies to radically change the business models of enterprise management today is considered the most important topic for organizations around the world. The requirements of the new digital economy represent the digital transformation as a conscious strategic process of business modification through adaptive management and implementation of digital technologies, ie the restructuring of existing business models. The same happens at industrial and agro-industrial enterprises, the analog period of which is coming to an end. Industries are entering the digital age, thanks to which enterprises are developing in accordance with the new focus. For this reason, it is very important for the formation of digital models of enterprise management to strategically understand the possibilities of digital technology development in their connection with business processes and business models. The analysis of the main traditional models of effective management of enterprises was carried out and their fundamental differences from the Ukrainian approach to management were revealed, the possibilities of implementation of the principles of existing business models by Ukrainian enterprises were considered. In addition, a roadmap for the transition from a traditional to a digital enterprise was proposed for consideration. The process of modeling the digital management system of the enterprise is revealed. Currently, a prerequisite for the prosperity of the economy of industry and agriculture and, consequently, the economy of Ukraine, is adaptive digital management as a basis for economic security of the enterprise. It was found that the relentless introduction of digital technologies, «copying best practices» can later be in reality as dangerous as the refusal to master new technologies. Therefore, choosing the direction of your own digitization, you must first study everything thoroughly, so as not to miss the moment and not to remain in the ranks of the latter or in the past.

scholarly journals Didática para Ensino de IoT Otimiza Recursos Públicos / Didactics for IoT Optimizes Public Transportation

2019 ◽  
Vol 5 (1) ◽  
pp. 1-7
Author(s):  
Helbert Da Rocha ◽  
Tânia Lucia Monteiro
Keyword(s):  
Smart Grid ◽  
Health Monitoring ◽  
Public Transportation ◽  
Preventive Maintenance ◽  
New Technologies ◽  
Smart Cities ◽  
Technological Paradigm ◽  
City Hall ◽  
Public Resources ◽  
Two Cities

ABSTRACTInternet of Things (IoT) is a technological paradigm and one of the most important tendency of TI nowadays, it is having a broad scope of research in the most different areas. IoT is playing an important role in the concept of smart cities, smart grid, smart health monitoring, smart clothes, preventive maintenance, etc. The IoT contribution to cities in order to make them intelligent, creates a hall of possibilities where there is almost no limit. The knowledge of this topic was presented to the students of the discipline Advanced Topics in Computer Networks. Unorthodoxly and using new technologies, resulted in the project “Vou de ônibus”. The project, aims to optimize public resources, used in the transportation of university students between two cities in the interior of Brazil, provided daily to academics by one of the local city hall. The project has the goal to determine the partial number of students that will use the transportation on a certain day of the week.RESUMOInternet of Things (IoT) é um paradigma tecnológico e uma das tendências de TI mais importantes da atualidade, tendo amplo escopo de pesquisa nas mais diversas áreas. IoT está desempenhando um papel importante no conceito de cidades inteligentes, smart grid, monitoramento de saúde inteligente, roupas inteligentes, manutenção preditiva, etc. A contribuição da IoT para cidades, com finalidade de torná-las inteligentes cria um hall de possibilidades onde quase não há limite. O conhecimento deste tema foi apresentado aos alunos da Disciplina de Tópicos Avançados em Redes de Computadores, de forma não ortodoxa e utilizando novas tecnologias, tendo como resultado o projeto “Vou de ônibus”. O projeto, visa otimizar recursos públicos, utilizados no transporte de universitários entre duas cidades no interior do Brasil, fornecido diariamente aos acadêmicos locais por uma das prefeituras. Tendo como objetivo determinar o número parcial de alunos que irá utilizar o transporte em determinado dia da semana.

Formulate a Clear M&A Strategy

2020 ◽  
pp. 17-31
Author(s):  
Timothy Galpin
Keyword(s):  
High Risk ◽  
Best Practices ◽  
Mergers And Acquisitions ◽  
Stock Prices ◽  
New Technologies ◽  
Strategic Choice ◽  
Growth Strategy ◽  
Ample Evidence ◽  
Cross Border ◽  
Strategic Options

Mergers and acquisitions are a strategic choice. Favorable regulatory environments, economic expansion, the emergence of new technologies, high stock prices, and liquidity in credit markets have all contributed to creating “waves” of M&A characterized by periods of high and low transaction volumes. M&A is a high-risk growth strategy, with ample evidence demonstrating that buyers struggle to capture value from their transactions. Yet, the Oxford M&A Insights Project found that almost two-thirds (64%) of respondents indicated that their company is “very likely” or “likely” to conduct future transactions. This chapter provides an overview of the strategic options for M&A and how firms develop their M&A strategies. The tools, templates, best practices, potential pitfalls, and a case example of how to go about setting a clear M&A strategy are also addressed, along with the main participants, core activities, buyer’s and seller’s perspectives, and key cross-border considerations.

From Soft Mooring System to Active Positioning in Laboratory Experiments

2020 ◽  
Author(s):  
Thomas Sauder ◽  
Galin Tahchiev
Keyword(s):  
Laboratory Experiments ◽  
Low Frequency ◽  
Positioning System ◽  
Mooring System ◽  
Passive System ◽  
Active System ◽  
Floating Structures ◽  
Main Components

Abstract This paper presents an active positioning system aimed at replacing the classical “passive” soft horizontal mooring system used in seakeeping tests of floating structures. We discuss the limitations of the passive approach, present the main components of the active system, and demonstrate its ability to reproduce results obtained with the passive system. We then show how the active system allow controlling the low-frequency damping applied to the floater. We conclude on the possibilities offered by this apparatus.

Marefa

2018 ◽  
Vol 14 (3) ◽  
pp. 167-183
Author(s):  
Ahmed Ktob ◽  
Zhoujun Li
Keyword(s):  
Best Practices ◽  
Linked Data ◽  
New Technologies ◽  
Extraction Process ◽  
Primary Sources ◽  
Statistical Measures ◽  
The Web ◽  
Meaningful Data

This article describes how recently, many new technologies have been introduced to the web; linked data is probably the most important. Individuals and organizations started emerging and publishing their data on the web adhering to a set of best practices. This data is published mostly in English; hence, only English agents can consume it. Meanwhile, although the number of Arabic users on the web is immense, few Arabic datasets are published. Publication catalogs are one of the primary sources of Arabic data that is not being exploited. Arabic catalogs provide a significant amount of meaningful data and metadata that are commonly stored in excel sheets. In this article, an effort has been made to help publishers easily and efficiently share their catalogs' data as linked data. Marefa is the first tool implemented that automatically extracts RDF triples from Arabic catalogs, aligns them to the BIBO ontology and links them with the Arabic chapter of DBpedia. An evaluation of the framework was conducted, and some statistical measures were generated during the different phases of the extraction process.

Influence of Nonlinear Mooring Stiffness on Hydrodynamic Performance of Floating Bodies

2009 ◽  
Author(s):  
Huilong Ren ◽  
Jian Zhang ◽  
Guoqing Feng ◽  
Hui Li ◽  
Chenfeng Li
Keyword(s):  
Equilibrium Position ◽  
Equations Of Motion ◽  
Offshore Structures ◽  
Hydrodynamic Performance ◽  
Coupled Analysis ◽  
Mooring System ◽  
Main Function ◽  
Ocean Engineering ◽  
Mooring Lines ◽  
Floating Structures

Coupled dynamic analysis between floating marine structures and flexible members such as mooring lines and risers, is a challenging work in the ocean engineering field. Coupled analysis on mooring-buoy interactions has been paid more and more concern for recent years. For floating offshore structures at sea, the motions driven by environmental loads are inevitable. The movement of mooring lines occurs due to the excitation on the top by floating structures. Meanwhile the lines restrict the buoy’s motion by forces acting on the fareleads. Positioning is the main function of mooring system, its orientation effects can’t be ignored for floating structures such as semi-submersible, FPS, and TLP, especially when the buoy’s equilibrium position shifting to another place. Similar as hydrostatic restoring forces, mooring force related with the buoy’s displacement can be transformed into mooring stiffness and can be added in the differential equations of motion, which is calculated at its equilibrium point. For linear hydrodynamic analysis in frequency domain, any physical quantity should be linear or be linearized, however mooring stiffness is nonlinear in essence, so the tangent or differential stiffness is used. Steel chains are widely used in catenary mooring system. An explicit formulation of catenary mooring stiffness is derived in this article, which consists of coupled relations between horizontal and vertical mooring forces. The effects of changing stiffness due to the shift of equilibrium position on the buoy’s hydrodynamic performance are investigated.

The Application of FPSO in Oil and Gas Exploitation

2012 ◽  
Vol 256-259 ◽  
pp. 1952-1955
Author(s):  
Ting Guo ◽  
Hong De Qin
Keyword(s):  
Oil And Gas ◽  
Single Point ◽  
Mooring System ◽  
Hydrodynamic Analysis ◽  
Comprehensive Review ◽  
Floating Structures ◽  
The World

The far-flung ocean has abundant resource and the exploitation area of ocean oil and gas is developing from offshore to deepwater and ultra-deepwater following the increase demand for oil and gas resource. Therefore, one of the floating structures for deepwater exploitation is FPSO. The yaw of FPSO is more important problem to solve. This paper use Hydrostar to compute the RAOs, 1st-order and 2nd-order force of FPSO. A comprehensive review is introduced about the research on FPSO hydrodynamic in the world, including the coupling hydrodynamic analysis of deepwater FPSO with the mooring system. The results indicate that the FPSO’s 1st-order force and moment is a little large, however, the RAOs and 2nd-order force and moment are good. The FPSO with single point mooring system can control the displacement of FPSO effectively.

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