Blar i Department of Mechanical and Structural Engineering and Materials Science (TN-IMBM) på tittel
Viser treff 21-40 av 1689
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A new approach for estimating fatigue life in offshore steel structures
(Masteroppgave/UIS-TN-IKM/2013;, Master thesis, 2013)Miner’s rule is generally accepted as the fatigue criteria for life estimation of existing offshore steel structures. Similarly, it has always been acknowledged as a simplification that is easy to use in design where ... -
A parametric study of variable deck load for drilling vessels
(Masteroppgave/UIS-TN-IKM/2014;, Master thesis, 2014-06-16)The size of semi-submersible drilling rigs has tripled over the past 50 years, with corresponding increase in cost. In order to change the direction of this development, the size of the rigs has to be challenged. Utilizing ... -
A Proposed Framework for Strengthening Mitigations of Offshore Jacket Structures and its Application
(Masteroppgave/UIS-TN-IMBM/2018;, Master thesis, 2018-06)The majority of offshore platforms and jacket structures are currently passing their assigned lifetime both on the Norwegian Continental Shelf (NCS), the Gulf of Mexico (GoM), the United Kingdom Continental Shelf (UKCS) ... -
A Roadmap for Acquisition of Legacy Parts Through an On-demand Solution Aimed at the Energy Sector on the Norwegian Continental Shelf - A Case Implementation
(Master thesis, 2022)\section{Abstract} Equinor has initiated a Field Life Extension (FLX) project to prolong the end-life operational capabilities of their installations by innovative methods, including Stafjord A. One of these innovative ... -
A study of fracture mechanisms when exposed to hydrostatic loads
(Master thesis, 2014-06-13)Bridgman experiment is an experiment that was conducted by Bridgman in 1912. This simple experiment consists of a rod going all the way through a pressure vessel. When pressurizing the vessel, the rod is loaded on the ... -
A study of how a Lean approach can be used in dealing with challenges present at DeepOcean Offshore Base and their specialty within logistics-, warehouse- and workshop services
(Masteroppgave/UIS-TN-IKM/2016;, Master thesis, 2016-06-13)Over the last few years we have witnessed one of the largest drops in oil prices. The industry has become highly competitive and customer oriented, and the offshore companies are facing increasing demands for efficiency; ... -
A study of how asset management and condition based maintenance can improve utilization of assets involved in the O&G industry on the NCS
(Master thesis, 2015-06)In the highly competitive and customer oriented oil and gas industry on the Norwegian Continental Shelf, organizations experience increasingly higher demands for efficiency and optimization of performance. The market ... -
A study of integrated operations on the norwegian continental shelf
(Masteroppgave/UIS-TN-IKM/2011;, Master thesis, 2011)In the beginning of the 21st century the Norwegian petroleum industry was faced with two possible future scenarios, the "disintegration" and the "long term" path. The "disintegration" path would involve a stagnation of the ... -
A study of principal hull parameters for a Spar buoy foundation for a vertical axis wind turbine in the MW-class
(Masteroppgave/UIS-TN-IKM/2016;, Master thesis, 2016-06)This thesis analyses a vertical axis wind turbine (VAWT) in the MW-class used in relation with a floating Spar buoy. The objective was to study the effect of varying principal hull parameters including diameter and draft ... -
A study of the changes in freeboard, stability and motion response of ships and semi-submersible platforms due to vessel icing
(Master thesis, 2014-06-06)There is an increasing demand for energy in the world, and as the traditional fossil fuel supplies are diminishing, it is pushing the oil and gas industry to seek for natural resources in remote and harsh environments. One ... -
A Study of the Coherences of Turbulent Wind on a Floating Offshore Wind Turbine
(Masteroppgave/UIS-TN-IKM/2016;, Master thesis, 2016-06)In the development of offshore wind turbine industry, the shift from the use of fixed-substructure wind turbines to the floating wind turbines is expected to maximise the offshore wind power extraction while reducing ... -
A study of wireline and downhole position control for riserless light well intervention in deep water
(Masteroppgave/UIS-TN-IKM/2013;, Master thesis, 2013)The light well intervention for subsea wells using riserless method has been carried out extensively over the last 10 years to increase the oil and gas recovery from depleted wells. Riserless Light Well Intervention (RLWI) ... -
A study on effect of tendon layouts in post-tensioned flat slabs
(Masteroppgave/UIS-TN-IMBM/2018;, Master thesis, 2018-06)The use of post-tensioned flat slabs is sufficient when large spans or thin floors are desired. The most used system today is to place unbonded tendons concentrated over the supports in one direction and distribute them ... -
A study on engineering critical assessment (ECA) of subsea pipeline girth welds for reeling installation
(Masteroppgave/UIS-TN-IKM/2013;, Master thesis, 2013)Reeling is offshore pipeline installation method which delivers fast and cost effective pipeline laying. Each of the pipeline segment are welded onshore, the long section of pipeline then spooled onto a large diameter of ... -
A study on how to improve the flow efficiency without decreasing the resource efficiency through continuous improvement
(Masteroppgave/UIS-TN-IMBM/2019;, Master thesis, 2019-06)The oil crisis in 2014 forced the oil and gas companies to reduce their spending and increase focus on streamlining their work. Even though there has been an upturn in the oil price since 2014, many companies still find ... -
A study on ship-bridge collisions and the significance of the collision energy and impact angle for the probability of collapse
(Master thesis, 2022)Bridges are a necessity for transportation across waterways in modern society, and the passing of large ships below bridges poses the risk of ship-bridge collision, which can, in the worst case, lead to the total collapse ... -
A Study on the Development and Implementation of a Retrofit Predictive Maintenance System Onboard a Container Vessel
(Masteroppgave/UIS-TN-IMBM/2018;, Master thesis, 2018-06)As industry 4.0 have gained momentum, a maintenance approach first introduced in the 1960’s has been reborn into the age of connectivity. Previously constrained from showing its true potential by limitations in technology, ... -
A subsea development, flowlines and flow assurance
(Masteroppgave/UIS-TN-IKM/2015;, Master thesis, 2015-06-15)Oil and gas exploration on the Norwegian Continental Shelf has been going on since the 1960. Many smaller oil fields have been found and at that stage they have not been developed, because alone they have not been economically ... -
A work process model for PdM evaluation in study phase: A case study
(Masteroppgave/UIS-TN-IMBM/2019;, Master thesis, 2019-06)To a large degree, the fluctuation in oil prices has forced Oil & Gas (O&G) companies to invest in technologies that can aid lower costs and mitigate risk. This financial stability depends on a big extent on the performance ... -
Acceptance of wind power development and exposure – Not-in-anybody’s-backyard
(Peer reviewed; Journal article, 2020)Despite a large stated-preference (SP) literature on wind power externalities, few SP studies employ a case-control approach to examine whether people’s acceptance of new wind power developments and renewable energy ...