Browsing Fakultet for ingeniørvitenskap (IV) by Title
Now showing items 6158-6177 of 23229
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Dynamic analysis of floating wind turbines during pitch actuator fault, grid loss, and shutdown
(Journal article; Peer reviewed, 2013)Coupled non-linear aero-hydro-servo-elastic simulations of three types of floating wind turbines (spar, semi- submersible, and tension leg platform) are carried out for several fault cases over a range of environmental ... -
Dynamic Analysis of Full Scale Testing of Steel Catenary Risers using the Finite Element Method
(Master thesis, 2011)Pipes for pipelines and risers subjected to fatigue loading during deployment. Additionally, in the case of free spanning pipelines and risers the pipes may be excited at their resonance frequency by vortex induced vibration ... -
Dynamic analysis of geometrically imperfect pipes
(Master thesis, 2011)Manufactuering and installation processes for submarine pipes and risers result in geometrical imperfections. In operational conditions the pipes and risers experienced dynamic loading and fatigue failure is an issue. A ... -
Dynamic analysis of girth welded pipes
(Master thesis, 2010)Pipes for pipeline and risers are subjected to fatigue loading during deployment. Additionally, in the case of free spanning pipelines and risers may be exited at their resonance frequency by vortex induced vibration. In ... -
Dynamic analysis of material flows and embodied emissions of the building stock of a zero emission neighbourhood. Case study: Ydalir
(Master thesis, 2019)The bottom-up approach model developed earlier by Næss et al. (2018) is extended to include the dynamic material flow and embodied emissions from materials during con- struction, renovation and demolition activities of a ... -
Dynamic Analysis of Offshore Concrete Structures subjected to Earthquake
(Master thesis, 2012)This thesis attempts to study the dynamic response of offshore concrete structures by sequentially introducing physical phenomena which are related to those types of analyses. This is done by modelling a simplified part ... -
Dynamic Analysis of ROV Operation
(Master thesis, 2015)At the semi-submersible rig Snorre B, the work class remotely operated vehicle (WROV) is essential to perform drilling and production activities. Currently, the weather criterion for launching the ROV is set to four meters ... -
Dynamic Analysis of Semi-submersible Offshore Fish Farm Operated in China East Sea
(Master thesis, 2019)In recent years, the aquaculture industry in China has achieved rapid development, which covers more than half of the world aquaculture production. For further development, Chinese aquaculture companies are looking for ... -
Dynamic Analysis of the Bergsøysund Bridge in the Time Domain
(Master thesis, 2013)The work has contributed to the assessment of the implementation of hydrodynamic effects in a nonlinear time domain analysis. Critical mechanisms like ?snap through? can only emerge in analyses that consider geometric ... -
Dynamic Analysis of the Installation of Monopiles for Offshore Wind Turbines
(Doctoral thesis at NTNU;2016:139, Doctoral thesis, 2016)The installation of offshore wind farms presents great challenges as the industry move farther offshore and into deeper waters, and the turbines and foundations are getting larger and heavier. Current installation methods ... -
DYNAMIC ANALYSIS OF WORKOVER RISER UNDER UNEXPECTED CONDITIONS
(Master thesis, 2014)The oil and gas business will meet new economical and technical challenges in the future. Increasing water depths and a decreasing number of new findings lead to a demand for higher recovery rates. Workover systems are ... -
A dynamic and a static approach to the business model - Investigating the potential difference in business model focus
(Chapter, 2019)This white paper is conducted for Lean Business encompassing a first attempt at empirical testing of data extracted from the Lean Business database. Lean Business adhere to the Lean Startup Movement, where the core principle ... -
Dynamic and Process Dependent Integrity Investigations of a Topology Optimized Additive Manufactured AlSi10Mg Upright
(Master thesis, 2019)Additiv tilvirkning muliggjør for tilvirkning av komponenter med organisk geometri. Kombinert med strukturell optimalisering, kan nye komponenter med lav vekt optimalisert for å takle spesifikke lastsitasjoner produseres. ... -
Dynamic and Structural Modeling of a V6 Stirling Heat Pump
(Master thesis, 2022)Oppgaven fokuserer på dynamiske og statiske simuleringer av en sekssylindret Stirling varmepumpe ved bruk av Fedem & Abaqus. Komponentene i analysene er designet av Enerin AS og er under utvikling mot en testklar varmepumpe ... -
Dynamic and Structural Modeling of a V6 Stirling Heat Pump
(Master thesis, 2022)Oppgaven fokuserer på dynamiske og statiske simuleringer av en sekssylindret Stirling varmepumpe ved bruk av Fedem & Abaqus. Komponentene i analysene er designet av Enerin AS og er under utvikling mot en testklar varmepumpe ... -
Dynamic anti-icing surfaces (DAIS)
(Doctoral theses at NTNU;2020:330, Doctoral thesis, 2020)Icing is one of the most ubiquitous natural phenomena accompanying human activities. Undesired ice generation and accretion are extremely hazardous to aircrafts, ships, electrical transmission cables, wind turbines, motor ... -
Dynamic anti-icing surfaces (DAIS)
(Peer reviewed; Journal article, 2021)Remarkable progresses have been made in surface icephobicity in the recent years. The mainstream standpoint of the reported anti-icing surfaces yet only considers the ice-substrate interface and its adjacent regions being ... -
A Dynamic Approach to Evaluating the Effect of Slamming on a Jacket Foundation Template Lowered Through the Wave Zone
(Master thesis, 2015)The joint venture between Boskalis and VolkerWessels is responsible for installing 70 jacket foundations for the Wikinger offshore wind farm. The critical phase in this installation procedure is lowering a jacket foundation ... -
Dynamic Autonomous Inflow Control Device - Performance prediction and experimental investigation of a specific rate controlled production valve design
(Master thesis, 2017)Horizontal wells in oil fields with a thin oil layer are known to experience early gas and water breakthrough. Rate controlled production (RCP) valves have been installed by Statoil at the Troll field in order to maintain ... -
Dynamic Bayesian Networks for Reduced Uncertainty in Underwater Operations
(Peer reviewed; Journal article, 2022)This paper presents a novel framework for modelling dynamic Bayesian belief networks (BBNs) for online risk assessment in underwater operations. Existing frameworks spans from commercial software with restricted code access ...