Department of Mechanical and Structural Engineering and Materials Science (TN-IMBM): Recent submissions
Now showing items 1001-1020 of 1747
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Prediction of short-term wind and wave conditions for marine operations using a multi-step-ahead decomposition-ANFIS model and quantification of its uncertainty
(Journal article; Peer reviewed, 2019-09)Short-term predictions of wind and wave properties with a duration of 1–3 days are vital for decision-making during the execution of marine operations. One-step-ahead weather conditions can be accurately predicted via ... -
An efficient approach for ship collision design of reinforced concrete pontoon walls
(Journal article; Peer reviewed, 2019)This paper presents an efficient method for collision design of prestressed concrete pontoon walls. High fidelity finite element models of a container ship bow and a prestressed concrete pontoon wall are first established. ... -
The performance of structured and unstructured grids on wind simulations around a high-rise building
(Journal article; Peer reviewed, 2019)In this study, computational fluid dynamics has been applied to analyze the performance of both structured and unstructured meshes when used in steady-state simulations of wind in an urban area. This case specifically ... -
Life extension of offshore structures : A conceptual framework and fatigue damage models
(PhD thesis UiS;, Doctoral thesis, 2019-09)Many offshore structures worldwide are approaching or have already exceeded their original design life. It is important to use the existing infrastructure efficiently and to estimate remaining service life accurately. ... -
Concept of a Pipeline Protection against Ice Ridges and Vortex-Induced Vibrations
(Masteroppgave/UIS-TN-IMBM/2019;, Master thesis, 2019-06)The development of offshore oil and gas fields involves a few challenges concerning the pipeline on-bottom protection, particularly in the Arctic zone. In the shallow waters the ice ridges may make dangerous gouges, hence, ... -
Validation of the High Order Spectral (HOS) Method for Extreme and Breaking Waves and Coupling of the HOS-Numerical Wave Tank Model with OpenFOAM
(Masteroppgave/UIS-TN-IMBM/2019;, Master thesis, 2019-06)The objective of this study was to investigate the abilities of the open-source potential flow solver HOS-NWT with regard to extreme wave events and deep-water wave breaking. In addition to this, significant effort was ... -
Sprekkvekst og inspeksjonsplanlegging
(Masteroppgave/UIS-TN-IMBM/2019;, Master thesis, 2019)Hensikten med denne oppgaven er å undersøke behovet for inspeksjoner for å oppdage sprekkvekst i et kritisk knutepunkt på en offshore jacket underlagt syklisk bølgebelastning. Det er studert hvor ofte det er nødvendig med ... -
Use of Machine Learning Techniques for Risk Based Inspection and Integrity Management of Pipeline Systems
(Masteroppgave/UIS-TN-IMBM/2019;, Master thesis, 2019-06-15)This thesis demonstrates the use of machine learning for integrity management and assessment of pipeline integrity using various types of classification algorithms on comprehensive in-line inspection data. Machine learning ... -
Feasibility Study of Application of Residual Curvature Method in Deepwater Free Hanging Risers
(Masteroppgave/UIS-TN-IMBM/2019;, Master thesis, 2019-07-15)The Offshore Oil and Gas industry has been moving to deeper water and needs to manage production in more extreme conditions. Risers systems are essential components for the transportation of these hydrocarbons from producing ... -
Feasibility study of the Ayashkinskoye license block (Sakhalin offshore) development
(Masteroppgave/UIS-TN-IMBM/2019;, Master thesis, 2019-06)Despite several successful existing offshore Russian projects such as Prirazlomnoye, Arkutun-Dagi, Piltun-Astokhskoye, Chayvo and Kirinskoye, Russian continental shelf remains to be a unique perspective for future exploration ... -
Pipeline Shore Crossing Approach in the Arctic Conditions
(Masteroppgave/UIS-TN-IMBM/2019;, Master thesis, 2019-06-14)The energy demand will increase the development of new offshore areas including the Arctic region. The construction of new infrastructure will be required in the region, in particular, subsea pipelines. Considering the ... -
Bruk av AVA-måler for å studere porestruktur i fersk betong
(Masteroppgave/UIS-TN-IMBM/2019;, Master thesis, 2019-06-14)Alle konstruksjoner som blir bygd ute i Norge vil kunne bli utsatt for frost. Frostbestandighet er en faktor som må tas høyde for under støping av betong ute. I NS-EN206 står det at kravet for frostbestandig betong er ... -
Subsea Pipeline Design Features on the Russian Shelf Conditions
(Masteroppgave/UIS-TN-IMBM/2019;, Master thesis, 2019-06)Today in Russia, more than 75% of the explored onshore oil and gas fields are involved in the development, and their reserves have been produced at least by half. New discovered deposits are less and less, and their resources ... -
Grunnarbeid i byggeprosjekter; en case studie i Veidekke Bygg Oslo
(Masteroppgave/UIS-TN-IMBM/2019;, Master thesis, 2019-06)Denne studien tar for seg grunnarbeidene i byggeprosessen. Produksjonen i grunnarbeidsfasen foregår, i motsetning til byggefasene, under bakkenivå. Det gjerne for omfattende kostnads- og ressursmessig å kartlegge grunnforholdene ... -
Design optimization in building projects by using composite steel/concrete columns
(Masteroppgave/UIS-TN-IMBM/2019;, Master thesis, 2019-06-13)While being relatively common in other parts of Europe, the construction of steel-concrete composite buildings in Norway is rare. As an introduction the constituent materials, examples of different composite building ... -
Optimization of 2K-mixer for Paint
(Masteroppgave/UIS-TN-IMBM/2019;, Master thesis, 2019-06-15)This work presents a parametric study of a 2K-mixer for paint application that utilizes static mixers for mixing two component paint applied on a car body. The mixers is installed in a specialized valve block giving it the ... -
Developing a framework for predictive maintenance for a land-based company from an Industry 4.0 perspective
(Masteroppgave/UIS-TN-IMBM/2019;, Master thesis, 2019-06)The manufacturing industry today is filled with buzzwords like Industry 4.0, digitalization and automation. Emerging technologies enable operators and companies to better control asset lifetime, operations, failures and ... -
Exploratory Study: Implementation and Applications of Extended Reality
(Masteroppgave/UIS-TN-IMBM/2019;, Master thesis, 2019-06-12)It is well known that the construction industry has the potential to increase its productivity. It is also well known that a solution can be to assess decisions made early in a project more thorough, as these decisions ... -
Assessment of necessary airgap of a semisubmersible using a Peak-Over-Threshold long term analysis
(Masteroppgave/UIS-TN-IMBM/2019;, Master thesis, 2019-06-10)The airgap of a column stabilized floating structure is the distance from a point on the underside of the deck to the water level instantly and directly below it; when the sea is not calm, it varies with time and for ... -
Optimalisering av miks proporsjonering for selvkomprimerende lettbetong
(Masteroppgave/UIS-TN-IMBM/2019;, Master thesis, 2019-06-15)Kunnskap innen moderne betongteknologi vokser stadig og har ført til nyere innovasjoner, slik som selvkomprimerende betong (SKB) og lettbetong (LB). Disse bidrar til redusering av egenvekt til konstruksjoner og forbedre ...