Browsing NTNU Open by Author "Bjørnø, Jon"
Now showing items 1-13 of 13
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Autonom kailegging av skip ved bruk av nærhetssensorer
Edvard Meyer Flaatten (Master thesis, 2019)Denne avhandlingen presenterer utformingen av et kontrollsystem for autonom kailegging av skip ved hjelp av nærhetssensorer. Simuleringer og eksperimenter har blitt utført med moddelfartøyet C/S Inocean Cat I Drillship. ... -
Autonomous heading control in position mooring with thruster assist
Johannessen, Silje Aarvik (Master thesis, 2017)The main topic of this thesis is Thruster-Assisted Position Mooring (TAPM), which is a positioning system for automatic thruster assistance of a moored structure. The system has been commercially available since the late ... -
AutoVoyage: Autonom baneplanlegging, banegenerering, og banefølging for autonome skip under transit
Nordstoga, Aksel Knudsen (Master thesis, 2019)Denne avhandlingen presenterer et komplett system for autonom baneplanlegging, banegenerering og banefølging for et marint overflateskip. Baneplanleggeren er delt inn i en global planlegger med lav oppløsning, som planlegger ... -
Co-simulation of the propulsion system onboard the icebreaker Oden.
Odéen, Terese (Master thesis, 2020) -
Digital Twin of Vessels in Arctic Environments - Extending a Simulation Environment to allow for External Control of Multiple Vessels
Rolandsen, Andre Nilsson; Hoel, Preben Jensen (Master thesis, 2018)This thesis presents the work performed on extending and improving a numerical ice tank simulator developed by ArcISo AS called Simulator of Arctic Marine Structures (SAMS). The main work for this thesis has been on extending ... -
Guidance Model Representing an Ice Field for Path-Planning in Ice Management
Bjørnø, Jon; Marley, Mathias; Skjetne, Roger (Chapter, 2020)In the work presented in this paper, the problem on how to represent a simplified ice field in a guidance model, enabling path and maneuver planning for IM operation, has been studied. The use of B-splines and other basis ... -
Low-Cost Observer and Path-Following Adaptive Autopilot for Ships
Mykland, Alexander (Master thesis, 2017)In this thesis a signal-based observer and a path-following autopilot design will be derived and implemented on the model vessel C/S Enterprise I. Using scaling methods the goal is to transfer the controllers into a full ... -
Modeling, Parameter Identification and Thruster-Assisted Position Mooring of C/S Inocean Cat I Drillship
Bjørnø, Jon; Heyn, Hans-Martin; Skjetne, Roger; Dahl, Andreas Reason; Frederich, Preben (Chapter; Peer reviewed, 2017)A thruster-assisted position mooring (TAPM) system includes different control functions for stationkeeping and motion damping for a moored offshore vessel with assist from thrusters. It consists of a conventional mooring ... -
Performance Quantification of Icebreaker Operations in Ice Management by Numerical Simulations
Bjørnø, Jon; Skjetne, Roger; van den Berg, Marnix; Lu, Wenjun; Lubbad, Raed; Løset, Sveinung (Peer reviewed; Journal article, 2021)The paper addresses the problem of quantifying and assessing the effectiveness of icebreaker operations in ice management (IM) using a high-fidelity simulator. The numerical model includes an accurate geometric representation ... -
Quantifying Icebreaker Performance in Ice Management Operations by High-Fidelity Numerical Simulations
Bjørnø, Jon; van den Berg, Marnix; Lu, Wenjun; Skjetne, Roger; Lubbad, Raed; Løset, Sveinung (Chapter, 2020)In the study presented in this paper, the problem of quantifying the performance of icebreaker operations within ice management (IM) has been targeted, using the capabilities of high-fidelity simulations by a discrete ... -
Robust hybrid retningsstyring for autonome skip
Haug, Sondre (Master thesis, 2019)I de senere år har det vært økt interesse for styringssystemdesign og veiledning av autonome fartøy. Etter hvert som kompleksiteten i disse systemene øker, er det stor etterspørsel etter å designe robuste systemer som ... -
Thruster-Assisted Position Mooring of C/S Inocean Cat I Drillship
Bjørnø, Jon (Master thesis, 2016)This thesis presents the development of a new research foundation into the Marine Cybernetic Laboratory, the C/S Inocean Cat I Drillship. This is a 1:90 scaled model of an Arctic drillship design by Inocean for Statoil. The ... -
The Value of High-Fidelity Numerical Simulations of Ice-Ship and Ice-Structure Interaction in Arctic Design with Informed Decisionmaking
van den Berg, Marnix Albert; Bjørnø, Jon; Lu, Wenjun; Skjetne, Roger; Lubbad, Raed; Løset, Sveinung (Chapter, 2022)Long-term changes in the climate lead to an increase of activities in the Arctic. Ships and structures operating in Arctic waters may encounter sea ice and must be designed to withstand the loads resulting from ice-ship ...