• Analysis and correction of sea trials 

      Haakenstad, Katharina (Master thesis, 2012)
      When a ship-owner orders a vessel from a shipyard, a contract is written to confirm and guarantee the agreement for both parts. An important requirement of the contract is the vessel's speed at a given engine power, RPM ...
    • Analysis and Design of Columns in Offshore Structures subjected to Supply Vessel Beam Collisions 

      Qvale, Kjetil Hatlestad (Master thesis, 2012)
      During this Master Thesis, leg-segments of jacket platforms subjected to supply vessel impacts have been considered. Finite element analyses (FEA) have been conducted using the explicit solver LS DYNA. The FEA results have ...
    • Analysis of accidental iceberg impacts with LNG tank carriers 

      Dahl, Knut Aaberge (Master thesis, 2012)
      The number of collisions between ships and icebergs are increasing in correlation with the increase of the number of ships sailing in Arctic areas. Due to the exploitation of gas fields in Arctic areas, the LNG shipping ...
    • Analysis of Explosion Load Effects in Pipe-racks: Explosion simulation and its respective structural response on pipe-racks on a offshore topside module 

      Su, Aiwei (Master thesis, 2012)
      An explosion on a typical offshore installation is a critical, however rare accidental event which may result in damage and loss of property, and in the worse case loss of lives. Top-side sections on an offshore installation ...
    • Comparison between Measured and Calculated Riser Response 

      Stange, Ivar (Master thesis, 2012)
      Well intervention operations can inflict large strains on a wellhead. The seabed in the North Sea is very rigid up to the point where the sea water meets the mud or sand. This is one of the reasons why wellheads operating ...
    • Conceptual Design of Surface Buoy for Arctic Conditions 

      Aasheim, Jon Marius (Master thesis, 2012)
      Due to a rising interest in oil exploration in Arctic areas several new platform designs have been introduced to combat the problems with level ice loads. This has led to research into ice strengthening and how this affects ...
    • DISCONNECTION OF WORKOVER RISERS ON VERY DEEP WATER 

      Brynestad, Benjamin Ingvaldsen (Master thesis, 2012)
      for advanced riser analysis. Deep water oil recovery have forced a change in thesystems used to tension risers, the traditional wire-pulley systems are replacedwith direct acting hydraulic-pneumatic systems. In order to ...
    • Estimation and Computation of Ice-Resistance for Ship Hulls 

      Thorsen, Ingvill Bryn (Master thesis, 2012)
      The oil price continues to increase while oil companies search for oil in new areas. There is assumed that 25% of the world s hydrocarbons are located in the arctic area. Operating in these areas will be a huge challenge ...
    • Fatigue Analysis of Column-Brace Connection in a Semi-submersible Wind Turbine 

      Fredheim, Ørjan (Master thesis, 2012)
      The importance of offshore renewable energy from wind is expected to increase in the future. Most offshore wind turbines are currently installed in shallow water up to 50 meter water depth on bottom mounted substructures. ...
    • Fatigue in Jacket Structures With Impaired Integrity 

      Flesche, Arve (Master thesis, 2012)
      Present regulations for offshore structures on the Norwegian continental shelf havea requirement for Accidental Limit State redundancy and Fatigue Limit State redundancyin a damaged state. However, the requirement is far ...
    • Ice-Induced Loading on Ship Hull During Ramming 

      Fredriksen, Ørjan (Master thesis, 2012)
      As a result of the steadily increasing activities related to marine technology in Arctic regions, Det Norske Veritas has launched an ice load monitoring project to gather knowledge of the ice conditions and prevailing ...
    • Ice-Induced Loads on Ship Hulls 

      Holm, Herman (Master thesis, 2012)
      The calculation of ice-induced loads on ships is still mainly based on empirical models. In order to gain a better physical understanding of the loading on ice-going vessels, Det Norske Veritas launched an ice load monitoring ...
    • Non-linear Analysis of Wind Load Subjected Novel Flare Tower Design for Sevan Marine 

      Nøding, Jon Eirik Knutsen (Master thesis, 2012)
      Non-linear analysis of wind load subjected flare tower in Abaqus
    • Tensile armour buckling in flexible pipes 

      Nygård, David (Master thesis, 2012)
      The exible pipelines has been widely used by the oil and gas industry the lastdecades and this trend is expected to continue as the operating depths are increasedfurther. For deep water applications the radial and lateral ...