Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 1231 for “"offshore"”.
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Offshore marine visualization
… data streams.In the last five years, the offshore industry has been particularly slow to take advantage of the significant advancements made in computer and graphics technologies. Contemporary marine visualization systems still use outdated 2D representations of vessels positioned on …
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Dynamic Analysis Of Offshore Structures
… and appears to be small. (3) Response of Fixed Offshore Towers to Random Wave Forces Accounting for Pile-Soil-Pile Interaction. Dynamic pile-soil-pile interaction under the effect of wave forces is usually neglected in the design of offshore towers. It is examined and found to have a significant …
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Governance of Offshore Freshwater Resources
… Given the vital and unique nature of freshwater, offshore freshwater resources will become more attractive as the quality and quantity of land-based supplies dwindle.The purpose of this thesis is to fill the void in legal scholarship concerning governance of offshore freshwater resources. At least …
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Structural evaluation of fixed offshore platforms
In fixed offshore structures, damage incurred below the waterline is often difficult to detect, but significant enough to be the source of a subsequent massive failure. A technique is described that can be used to detect subsurface structural failure by detecting changes in the natural frequencies …
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Game theoretical offshore container port competition
… to collided hinterlands with the integration of offshore container port system (OCPS) and ultra large container vessels (ULCV). An OCPS adaptation is assumed to create offshore container port related an inter-port container competition with other conventional container ports which can handle …
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Decision-support for decommissioning offshore platforms.
An estimated 2,500 offshore decommissioning projects are expected to be completed between 2018 and 2040 with significant accompanying challenges. In this research, a decision model for decommissioning offshore platforms is developed. The decommissioning decision model (DDM) aids logical …
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Optimisation of offshore wind farm maintenance.
The installed capacity of European Offshore Wind Turbines (OWT) is likely to rise from the 2014 value of 7GW to 150GW in 2030. However maintenance of OWT is facing unprecedented challenges and cost 35% of lifetime costs. This will be equivalent to £14billion/year by 2030 if current OWT maintenance …
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Transporte de estruturas offshore sobre balsa
This work deals with the structural behaviour of offshore structures like jacket and deck during transportation on deck barges. Initially, a theoretical basis related to this kind of problem is presented. The analyses, founded in a probabilistic theory, were performed considering 5 sets of …
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Interação solo-estaca de plataformas offshore
… to represent soil in the Structural Analysis of Offshore Platforms. The soil characteristics for the non-linear soil behaviour are obtained from laboratory tests or using full scale loaded piles. The API Code through the "P-Y" curves, defines the stress-strain soil characteristics for laterally …
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Earthquake Response of Fixed Offshore Structures
Made available in DSpace on 2014-12-10T22:22:02Z (GMT). No. of bitstreams: 1 7405608.pdf: 8079229 bytes, checksum: 9787a6a709acbd666e721b6b88150847 (MD5) Previous issue date: 1973
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Nonlinear wave loads on offshore structures
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering, 1995.
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Future characteristics of Offshore Support Vessels
… objective of this thesis is to examine trends in Offshore Support Vessel (OSV) design and determine the future characteristics of OSVs based on industry insight and supply chain models. Specifically, this thesis focuses on Platform Supply Vessels (PSVs) and the advantages of certain design …
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Structural evaluation of fixed offshore platforms
Thesis. 1975. Ph.D.--Massachusetts Institute of Technology. Dept. of Ocean Engineering.
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Foundations for an offshore wind turbine
… The US is in the process of approving its first offshore wind farm, located in Nantucket Sound. Geotechnical factors will play a large role in the development of offshore wind projects due to the high cost contribution from foundations, and the high loads associated with storm conditions. …
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Wave loads on offshore wind turbines
… most important sources of alternative energy and offshore floating wind turbines are considered viable and economical means of harnessing ocean energy. The accurate prediction of nonlinear hydrodynamic wave loads and the resulting nonlinear motion and tether tension is of crucial importance in the …
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SLODC: Serial Logger for Offshore Data Collection
Mechanical parts in machinery are prone to vibration damage. Software is often used to keep track of data regarding the frequency and magnitude of these vibrations. General Electric currently has to bring out expensive equipment to log and convert the data from the software into relevant and …
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Improved operational limits for offshore pipelay vessels
… the world’s oceans to transport oil and gas from offshore facilities to land, often hundreds of miles. These pipelines range in diameter from three to sixty inches and are installed in deeper depths every year, currently as deep as 2,900 meters. Pipeline construction and installation costs are a …
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Illness and injury in the offshore workforce.
… established to serve the workforce of the UK offshore oil and gas extraction industry and has been functioning since the mid 1970's. In the current study the pattern of illness and injury in the offshore workforce of the UK Oil and Gas Industry is examined using data collected from 1,538 …
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Análise de zeros atrasados em unidades offshore
… nearby electric generators buses. In the case of offshore production platforms, the so called asymmetry, along with other specific conditions, may give rise to the so called “delayed current zeros” phenomenon in the short circuit current wave, which in turn, can produce thermal stress in the …
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Offshore construction contracts in the oil industry
… of research and drilling techniques. The first offshore oil well was drilled in Louisiana in 1947 at a depth of 20 meters. Today the Total-Fina-Elf group is launching the construction of the largest and most ambitious offshore complex in the world off the Angolan coast. The project, named …
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