Blar i Institutt for marin teknikk på utgivelsesdato

Viser treff 201-220 av 3421

    • Modeling, analysis and joystick control of the "AMV Oil Spill Fighter" 

      Nilsen, Lars Martin Fure (Master thesis, 2011)
      The purpose of this thesis is to develop a control scheme for the Arctic Multipurpose Vessel Oil Spill Fighter vessel model using a joystick as the connection between vessel and operator. A mathematical model of the vessel ...

    • Risk in crane and lifting operations related to the logistic interaction process for well and drilling 

      Prøsch, Kristine (Master thesis, 2011)
      This master thesis compares the logistic chain of operations and maintenance versus drilling and well and finds how drilling and well affect this chain with regards to risk on crane and lifting operations. Research has ...

    • Modeling and Control of Crane on Offshore Vessel 

      Syvertsen, Pål Guttorm (Master thesis, 2011)
      This master thesis is about modeling and control of crane placed on an offshore vessel. An active heave compensating crane, designed by MacGregor, has been used as a basis for developing the crane model. Cranes of this ...

    • Response of Flexible Risers in Bend Stiffener Area 

      Løseth, Kim (Master thesis, 2011)
      Flexible risers is a vital part of a floating production system (FPS). In order to predict the riser life time, many procedure may be applied. In this thesis it is assumed that the pipe could be represented with help of ...

    • Fatigue analysis of flexible pipes using alternative element types and bend stiffener data 

      Chen, Minghao (Master thesis, 2011)
      The flexible pipe is a vital part of a floating production system. The lifetime of a flexible riser system is crucial for the Health Safety and Environment (HSE) management. As a result of this, it is very necessary to ...

    • Analysis of riser-induced loading on well-head 

      Rakvåg, Fredrik (Master thesis, 2011)
      Fatigue of wellhead at subsea-completed wells is a growing problem in the offshore industry. It has been a large technology development in the offshore industry. This has resulted in an extension in the expected life for ...

    • Hydrodynamic Force Identification from Stochastic Vortex Induced Vibration Experiments with Slender Beams 

      Wu, Jie (Doktoravhandlinger ved NTNU, 1503-8181; 2011:179, Doctoral thesis, 2011)
      As offshore industry goes to deeper waters, vortex induced vibrations (VIV) becomes an increasingly challenging factor in riser design. However, VIV is still not fully understood. This thesis studies the hydrodynamic forces ...

    • Modelling and control of a pneumatic starting system for medium-speed gas engines 

      Eide, Trond Inge (Master thesis, 2011)
      This thesis investigates starting systems for marine gas engines. Large combustion engines are usually started by means of pneumatic starting arrangements. The most common ways of starting a combustion engine with compressed ...

    • Shutdown preparedness monitoring 

      Andreassen, Mats Gustav (Master thesis, 2011)
      Statoil is a prominent Norwegian actor in the oil and gas industry at home and abroad. Maintaining the offshore installations has gradually become more important in line with the installations age, increased HMS demands ...

    • Wave Loads on Underwater Protection Covers 

      Havn, Jarle (Master thesis, 2011)
      Submerged structures in shallow water can be exposed to large hydrodynamic wave- and current forces. An estimate of the total external loads will be important for the design and robustness of the structures. The aim will ...

    • Design of tension leg anchor systems for floating windmills 

      Vågen, Rolf Åge (Master thesis, 2011)
      Renewable energy is likely to be of great importance in decades to come due to increased energy consumption. Kinetic energy from wind is expected to cover a part of this need, and wind farms are so far built onshore or at ...

    • Underreporting of maritime accidents – how it affects risk assessments and suggestions for correction 

      Ombler, Ellen Kristine (Master thesis, 2011)
      In this report it is looked at how underreporting of maritime accidents affects the results of a risk assessment, from the frequency analysis to the decision-making process. As a basis, a risk model is made and the accident ...

    • Optimization and Design of the Foil Swing Generator 

      Martinsen, Audun Magnus (Master thesis, 2011)
      Energy is essential for the world today and the demand of green energy is increasing. Development and research in green energy enables new technologies to be realized. Coriolis A/S contributes to this wave by investigating ...

    • Optimum layout of stiffened panels subjected to lateral pressure and inplane loads 

      Nguyen, Chi Thanh (Master thesis, 2011)
      This thesis has been to develop from the result of project thesis. The main task is now focused on the optimum layout for stiffened panel and girder. Stiffened panels constitute important structural elements in marine ...

    • Alternative methods for reduction of operational downtime related to dis-/reconnection of the marine drilling riser 

      Djupesland, Andreas (Master thesis, 2011)
      The global energy demand is increasing. The oil companies are going into harsher climates and deeper waters to replace their reserves. Much of the undiscovered hydrocarbon reservoirs are believed to be located in the Arctic ...

    • Turnaround strategy development: a case study 

      Berdahl, Inge Lundhaug (Master thesis, 2011)
      Chapter 2 of this thesis handles the topic Maintenance Management and will establish a platform of word and abbreviations that will be used through the rest of the paper. Also maintenance theory of failure characteristics ...

    • Analysis of the Big Orange XVIII and Ekofisk 2/4-W collision in 2009 

      Paulsen, Erik (Master thesis, 2011)
      This thesis consists of analyses and discussions regarding the collision between the offshore vessel Big Orange XVIII and Ekofisk 2/4W the 8th of June 2009. The collision caused the bow of Big Orange to deform three meters ...

    • Finite element analysis of marine umbilical 

      Risa, Adrian Opheim (Master thesis, 2011)
      Background: Marine umbilicals play a vital role in oil and gas production fields. The oil and gas industry is in constant change, as the resources in the reservoirs are ever decreasing. Today oil and gas exploration takes ...

    • Transient dynamics of drilling riser during disconnect 

      Bratseth, Svein (Master thesis, 2011)
      Drilling of petroleum wells have traditionally be done by adjusting the mud weight to balance pressure of the well. A new method of controlling well pressure is called controlled mud cap drilling. The method uses high mud ...

    • Use of SIMA in a static and dynamic analysis of a spool piece installation 

      Mygland, Christian (Master thesis, 2011)
      A new modeling environment for marine operations, SIMA, has been used to perform a spool piece installation analysis. Spool design and installation analyses have formerly been done in two separate operations. STAAD Pro has ...