Blar i Department of Mechanical and Structural Engineering and Materials Science (TN-IMBM) på tittel

Viser treff 1155-1174 av 1695

    • Offshore lifting analysis object weights below 50T 

      Malmin, Bjarte (Masteroppgave/UIS-TN-IKM/2014;, Master thesis, 2014-05-28)
      This thesis consists of two main objectives: Learning to use NORSOK-R002 and comparing it with Aker Solutions former work instruction manual A237; and conducting a case study on the main frame of the C05 east balcony for ...

    • Offshore Structures Exposed to Large Slamming Wave Loads 

      Jose, Jithin (PhD thesis UiS;, Doctoral thesis, 2017-12)
      In sloping shallow water regions, waves undergo different nonlinear transformations such as wave shoaling and breaking, due to the nonlinear wave interactions with the seabed. The forces from breaking waves are of concern ...

    • Offshore tethered platform springing response statistics 

      Gaidai, Oleg; Xu, Jingxiang; Hu, Qingsong; Xing, Yihan; Zhang, Fuxi (Peer reviewed; Journal article, 2022)
      This paper demonstrates the validity of the Naess–Gadai method for extrapolating extreme value statistics of second-order Volterra series processes through application on a representative model of a deep water small size ...

    • Offshore vindturbin : effekt av aerodynamisk demping, og utmattelse av støttekonstruksjonen 

      Hopland, Erlend (Masteroppgave/UIS-TN-IKM/2013;, Master thesis, 2013)
      Hensikten med denne oppgaven er å analysere effekten av aerodynamisk demping på en offshore vindturbin, og hvilken effekt denne vil ha på utmattelse av støttekonstruksjonen. Spesielt interessant er det å se hva effekten ...

    • Offshore Wind Turbine Loads and Motions in Unstable Atmospheric Conditions 

      Putri, Rieska Mawarni; Obhrai, Charlotte; Knight, Julie-Ann Marie (Peer reviewed; Journal article, 2019)
      Even though it is widely known that unstable atmospheric stability conditions can lead to higher turbulence, the use of proper turbulent wind models considering unstable conditions are not often used in the simulation of ...

    • Offshore wind turbine wake characteristics using scanning doppler lidar 

      Krishnamurthy, Raghavendra; Reuder, Joachim; Svardal, Benny; Fernando, Harindra Joseph S.; Jakobsen, Jasna Bogunovic (Journal article; Peer reviewed, 2017-10)
      Within an offshore wind park, wind flow characteristics are quite complex and govern both the energy production and the structural wind turbine response. An experimental study focussed on assessing the spatial variability ...

    • Offshorekonstruksjoner utsatt for fallende last 

      Bjørnsen, Kristoffer Hope (Masteroppgave/UIS-TN-IKM/2009, Master thesis, 2008)
      Denne rapporten kontrollerer effekten ved bruk av ekstruderte aluminiumsprofiler som beskyttelse av offshorekonstruksjoner utsatt for fallende last. Sammensatt utgjør disse fleksible energiabsorberende kassetter som kan ...

    • Offshorekraner 

      Søndenaa, Marit C. (Masteroppgave/UIS-TN-IKM/2012;, Master thesis, 2012)
      I forbindelse med at Ekofisk-området i Nordsjøen bygges ut er det planlagt og under bygging tre plattformer som skal installeres og settes i drift i perioden 2013 til 2015. To av disse nye plattformene skal knyttes opp ...

    • Oil offloading solutions for the Pechora sea exemplified by the Prirazlomnoye field 

      Subbotin, Evgeny (Masteroppgave/UIS-TN-IKM/2015;, Master thesis, 2015-06-15)
      There are many prospective areas to develop in Arctic and every considered project is unique. Solutions for one oil or gas field might not be appropriate for another. Especially in terms of development of oil and gas fields ...

    • Oil tanker under ice loadings 

      Gaidai, Oleg; Yan, Ping; Xing, Yihan; Xu, Jingxiang; Zhang, Fuxi; Wu, Yu (Peer reviewed; Journal article, 2023)
      As a result of global warming, the area of the polar pack ice is diminishing, making merchant travel more practical. Even if Arctic ice thickness reduced in the summer, fractured ice is still presenting operational risks ...

    • Ombygging til reverisbelt pumpekraftverk i Roskrepp kraftverk - et mulighetsstudie 

      Tofteberg, Marte Walmestad (Masteroppgave/UIS-TN-IKM/2016;, Master thesis, 2016-06-15)
      Masteroppgaven er et resultat av Sira-Kvina Kraftselskaps ønske om å kartlegge endrede markedsforutsetninger, og muligheter knyttet til økt balansekraft i deres produksjonsanlegg. De siste årene har økt fokus på klimamål ...

    • On Competition-driven Teaching of Multidisciplinary Engineering Education: Implementation cases at University of Stavanger 

      Lemu, Hirpa G. (Peer reviewed; Journal article, 2017)
      This article will reflect the experience gained on problem-based learning (PBL) projects implemented in the last six years at University of Stavanger (UiS). The PBL projects were implemented by establishing two ”student-driven” ...

    • On the three-dimensional effects of the water entry of wedges 

      Wen, Xueliang; Ong, Muk Chen; Yin, Guang (Peer reviewed; Journal article, 2023-09)
      Three-dimensional (3D) effects on the total and spanwise slamming coefficients and the pressure reductions acting on the wedge surface during water entry are modeled in a unified manner. First, the water entry of wedges ...

    • On the use of historical failures patterns to confront the unforeseen 

      Rachman, Andika (Masteroppgave/UIS-TN-IKM/2015;, Master thesis, 2015-06-14)
      Deepwater Horizon blowout, Bhopal gas tragedy, and Fukushima nuclear accident are some examples of failures that are seemed to be unforeseen and surprising from ones perspectives. The future occurrence of similar events ...

    • On the wake flow behind a sphere in a pipe flow at low Reynolds numbers 

      Yin, Guang; Ong, Muk Chen (Peer reviewed; Journal article, 2020-10)
      Numerical simulations are carried out to investigate the flow around a stationary sphere in a pipe. Seven sphere diameters d = 0.1D–0.9D (D is the diameter of the pipe) are chosen to investigate the effects of the blockage ...

    • On wave-wind interactions and implications for offshore wind turbines 

      Kalvig, Siri M. (PhD thesis UiS;235, Doctoral thesis, 2014-11-17)

    • On-bottom Stability of a Subsea pipeline in Irregular Waves 

      Li, Lanjing (Masteroppgave/UIS-TN-IKM/2016;, Master thesis, 2016-06)
      Pipelines in a subsea environment are exposed to a very complex system of hydrodynamic reaction. The on-bottom stability has long been a important study for offshore practice. The soil types, wave conditions as well as ...

    • On-Bottom Stability of Umbilicals and Power Cables for Offshore Wind Applications 

      Ji, Guomin; Ong, Muk Chen (Peer reviewed; Journal article, 2019)
      With the increase in offshore wind farms, the demands for umbilicals and power cables have increased. The on-bottom stability of umbilicals and power cables under the combined wave and current loading is the most challenging ...

    • Online riser monitoring system for Skarv FPSO 

      Rasmussen, Sveinung Fuglseth (Masteroppgave/UIS-TN-IKM/2012;, Master thesis, 2012)
      Customized production and storage vessels, known as FPSO (Floating Production, Storage & Offloading vessel), are increasingly used in offshore oil and gas production due to their flexibility and ability to produce in ...

    • Operability comparison of three ultra-deepwater and harsh environment drilling vessels 

      Anundsen, Thorgeir (Masteroppgave/UIS-TN-IKM/2008, Master thesis, 2008)
      This report deals with how the design principles of different drilling vessels affect the motion characteristics and operability. Furthermore, the vertical heave limitation’s influence on the operability has been analyzed. ...