Browsing Fakultet for ingeniørvitenskap (IV) by Title

Now showing items 18201-18220 of 22889

    • Rotation Representations Methods for Pose Estimation with Deep Learning 

      Grüner, Henrik (Master thesis, 2022)
      Problemstillingen med å estimere rotasjonsmatriser i 3D er et gammelt problem i datasyn som har gjenoppstått sammen med den ekstreme økningen av metoder i dyp læring. Det har blitt forsøkt å benytte nevrale nettverk for ...

    • Rotational CPTU method: development and testing of an innovative sounding approach for rapid and accurate in-situ detection of quick clay 

      Liu, Xuyan (Master thesis, 2023)
      Denne oppgaven presenterer en innovativ geoteknisk feltundersøkelsesmetode - den roterende CPTU-metoden (forkortet DRTCPT), for rask og nøyaktig in-situ detektering av omfattende kvikkleiresedimentering. Den nye metoden ...

    • Rotårsaksanalyser 

      Smedvik, Kjetil Andre (Master thesis, 2010)
      Målet med masteroppgaven har vært å utvikle en håndbok for rotårsaksanalyser (RCA) som landorganisasjonen til Odfjell Drilling kan benytte. Bakgrunnen for utviklingen av håndboken var den økende bevisstheten rundt verktøyet ...

    • Roterende utstyr - Hvordan øke pålitelighet og styre vedlikehold til planlagte stopp? 

      Morten Nilsen; Tom Helseth (Bachelor thesis, 2020)
      Stadig økende krav til effektivitet i produksjonsbedrifter øker belastningen på produksjonsutstyr som stiller større krav til pålitelighet og optimalisert vedlikehold. Dette prosjektet har fulgt Glava fabrikk i Askim sitt ...

    • Rotor imbalance detection and diagnosis in floating wind turbines by means of drivetrain condition monitoring 

      Mehlan, Felix Christian; Nejad, Amir R. (Peer reviewed; Journal article, 2023)
      This paper presents a novel approach for detection and diagnosis of the rotor imbalance types pitch misalignment, yaw misalignment and mass imbalance by monitoring the drivetrain vibration response. Traditionally, only ...

    • Rotor wake turbulence: An experimental study of a wind turbine wake 

      Eriksen, Pål Egil (Doctoral thesis at NTNU;2016:34, Doctoral thesis, 2016)
      An experimental investigation of the first five diameters of the wake of a 0.9 meter in diameter model wind turbine with three blades has been undertaken. The blades are twisted and tapered and uses a NREL S826 ...

    • Rotor-Stator Interaction in Low-Specific Speed Francis Turbines 

      Agnalt, Einar (Doctoral theses at NTNU;2019:219, Doctoral thesis, 2019)
      Several breakdowns in hydropower plants with low specific speed Francis runners have been reported. These breakdowns are understood to be related to pressure pulsations, vibration modulus and the combination of these. One ...

    • The Rotor-Stator Interaction Onboard a Low Specific speed Francis Turbine 

      Agnalt, Einar; Solemslie, Bjørn Winther; Storli, Pål-Tore Selbo; Dahlhaug, Ole Gunnar (Journal article; Peer reviewed, 2020)
      Over the last years, several breakdowns in hydropower plants with low specific speed Francis runners have been reported. One of the main excitation forces in such runners is the pressure fluctuations originating from the ...

    • Rotordynamic and Computational Fluid Dynamic Analysis of Electrical Pump 

      Johansen, Phillip; Ananiassen, Simen; Ingebrigtsen, Øyvind (Bachelor thesis, 2021)

    • Rotor‐integrated modeling of wind turbine aerodynamics 

      Chabaud, Valentin Bruno (Peer reviewed; Journal article, 2021)
      A novel approach for the modeling of rotor-integrated aerodynamic loads is suggested to answer the need for a comprehensive, insightful, and analytical actuator disc model. All the six degrees of freedom (including tangential ...

    • Roughness evaluation in shotcrete-lined water tunnels with invert concrete based on cases from Nepal 

      Basnet, Chhatra Bahadur; Panthi, Krishna Kanta (Journal article; Peer reviewed, 2018)
      Most of the existing roughness estimation methods for water tunnels are related to either unlined or concrete/steel-lined tunnels. With the improvement in shotcrete technology, advancement in tunneling equipment and cost ...

    • Round-Robin Study for Ice Adhesion Tests 

      rehfeld, nadine; Brassard, Jean-Denis; Yamazaki, Masafumi; Sakaue, Hirotaka; Balordi, Marcella; Koivuluoto, Heli; Mora, Julio; He, Jianying; Pervier, Marie-Laure; Dolatabadi, Ali; Asenath-Smith, Emily; Järn, Mikael; hou, xianghui; Stenzel, Volkmar (Peer reviewed; Journal article, 2024)
      Ice adhesion tests are widely used to assess the performance of potential icephobic surfaces and coatings. A great variety of test designs have been developed and used over the past decades due to the lack of formal standards ...

    • Route Guidance Strategies for Electric Vehicles by Considering Stochastic Charging Demands in a Time-Varying Road Network 

      Wang, Yongxing; Bi, Jun; Lu, Chaoru; Ding, Cong (Peer reviewed; Journal article, 2020)
      Electric vehicles (EVs) are being increasingly adopted because of global concerns about petroleum dependence and greenhouse gas emissions. However, their limited driving range results in increased charging demands with a ...

    • Route modelling in coastal navigation for digital twins and digital platforms 

      Prestegårdshus, Gjermund (Master thesis, 2020)
      Denne oppgaven undersøker hvordan digital tvilling teknologi kan brukes til å ta smartere beslutninger og operere mer effektivt i kystnavigering. Forskningsspørsmålene for denne oppgaven er: (1) Hva er begrensende faktorer ...

    • ROV Control System for Positioning of Subsea Modules 

      Henriksen, Eirik Hexeberg (Master thesis, 2014)
      Installation of deep water Xmas trees for subsea oil production is sometimes done by lowering the tree using one wire. Xmas trees are interfacing with other equip- ment on the seafloor and will therefore need to be positioned, ...

    • ROV elektronikksylindre av kompositt til bruk ved store havdyp 

      Olsen, Thor Øystein (Master thesis, 2012)
      Sperre AS produserer i stor grad hele ROV konstruksjonen sin i aluminiumslegeringen AA6082-T6. Dette er et velegnet materiale for oppgava, men med noen mangler.Denne oppgava fokuserer på elektronikksylindrene til ROV-en, ...

    • "ROV Intervention Tool Skid (RITS)": Development of a new ROV tool 

      Nørstebø, Magnus (Master thesis, 2014)
      Most subsea installations have their own, integrated control and automation systems. In cases where this is impossible or the mechanism fails, the only unit that can handle such problems is the ROV. This makes the ROV ...

    • ROV Motion Control Systems 

      Dukan, Fredrik (Doktoravhandlinger ved NTNU, 1503-8181; 2014:295, Doctoral thesis, 2014)
      This thesis is about automatic motion control systems for remotely operated vehicles (ROV). The work has focused on topics within guidance and navigation. In addition, a motion control system has been developed, implemented, ...

    • ROV-basert multi-sensor verktøy for inspeksjon og overvåking av undervanns rørledning 

      Moe, Christer (Master thesis, 2014)
      Offshore industrien bruker store ressurser på å sikre integriteten til undervannsrørledninger. Feilmekanisme i form av lekkasje vil ha direkte innvirkning på driften. Det iverksettes derfor omfattende vedlikeholdsstrategier ...

    • RP-200: Design of PD pump for pumping of molasses 

      Skåtun, Kim (Master thesis, 2008)
      Abstract Motivation There is, at the present time, no submerged molasses pump on the market that is designed specifically for cargo tankers. Due to this I, find it interesting to look into the possibilities of installing ...