Blar i Department of Mechanical and Structural Engineering and Materials Science (TN-IMBM) på tittel
Viser treff 1140-1159 av 1686
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An object-oriented method for fully coupled analysis of floating offshore wind turbines through mapping of aerodynamic coefficients
(Peer reviewed; Journal article, 2021-07)This work presents a novel object-oriented approach to model the fully-coupled dynamic response of floating offshore wind turbines (FOWTs). The key features offered by the method are the following: 1) its structure naturally ... -
Observations of bridge stay cable vibrations in dry and wet conditions: A case study
(Peer reviewed; Journal article, 2021)The characteristics of wind- and rain-wind-induced vibrations of bridge stay cables are studied by using ambient vibrations records acquired on a cable-stayed bridge. Mean wind speed and wind-cable angle, as well as the ... -
Occurrence of Wind-Wave Misalignment using FINO and OBLEX data
(Masteroppgave/UIS-TN-IMBM/2018;, Master thesis, 2018-06-15)Wind-wave interaction has been an important aspect of environmental conditions to be considered for offshore wind turbine performance, especially in deeper water at stable atmospheric conditions such as North Sea. It is ... -
Offloading operation bivariate extreme response statistics for FPSO vessel
(Peer reviewed; Journal article, 2023)The Floating Production Storage and Offloading unit (FPSO) is an offshore unit producing and storing crude oil prior to tanker transport. An important design concern is an accurate prediction of risky dynamic hawser tensions ... -
Offshore hook-up project management
(Masteroppgave/UIS-TN-IKM/2014;, Master thesis, 2014-05-28)There is a lot going on offshore at the Norwegian Sector these days. Especially on the Ekofisk field, this is one of the oldest and most important fields in the North Sea. Ekofisk 2/4 Lima (EKOL) is the newest addition ... -
Offshore ice-resistant fixed platform for the Dolginskoye field in the Pechora Sea
(Masteroppgave/UIS-TN-IKM/2014;, Master thesis, 2014-06-16)Oil and Gas fields on the Russian Arctic Shelf are very difficult to develop as there is a lack of relevant experience around the world. Existing technical solutions should be improved and adjusted to the specific ... -
Offshore ice-resistant gravity based terminal for the cluster development of the Pechora Sea
(Masteroppgave/UIS-TN-IKM/2015;, Master thesis, 2015-06-12)The Arctic shelf of Russia is an area of great interests. The process of hydrocarbons offloading is the most significant challenge for the Arctic projects, mostly because of the harsh environmental conditions and lack of ... -
Offshore lifting analysis object weights below 50T
(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
(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
(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
(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
(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
(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
(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
(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
(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
(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
(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
(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
(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 ...