Blar i Institutt for marin teknikk på tittel
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Sulphur Abatement Globally in Maritime Shipping
(Journal article; Peer reviewed, 2017)In 2016, the International Maritime Organization (IMO) decided on global regulations to reduce sulphur emissions to air from maritime shipping starting 2020. The regulation implies that ships can continue to use residual ... -
Supervised Dynamic Probabilistic Risk Assessment of Complex Systems, Part 1: General Overview
(Peer reviewed; Journal article, 2021)Dynamic probabilistic risk assessment (DPRA) is a systematic and comprehensive methodology that has been used and refined over the past decades to evaluate risks associated with complex systems. However, current approaches ... -
Supervised dynamic probabilistic risk assessment of complex systems, part 2: Application to risk-informed decision making, practice and results
(Peer reviewed; Journal article, 2021)One challenge that has received attention in maritime industry is assessing the risk level of dynamic positioning (DP) systems in emergency situations. Statistics from recent years have shown that the risk level of some ... -
Supervised dynamic probabilistic risk assessment: Review and comparison of methods
(Peer reviewed; Journal article, 2022)With the adoption of autonomous systems in higher levels of autonomy, large-scale, complex and dynamic systems are becoming commonplace. Ensuring safe operation of safety-critical autonomous systems is paramount, typically ... -
Supervisory Control of Line Breakage for Thruster-Assisted Position Mooring System
(Chapter, 2015)Thruster-assisted position mooring (TAPM) is an energy-efficient and reliable stationkeeping method for deep water structures. Mooring line breakage can significantly influence the control system, and ultimately reduce ... -
Supervisory Risk Control of Autonomous Surface Ships
(Journal article; Peer reviewed, 2022)The objective of this paper is to develop online risk models that can be updated as conditions change, using risk as one metric to control an autonomous ship in operation. This paper extends and integrates the System ... -
Supervisory-switched Control for Dynamic Positioning Systems in Arctic Areas
(Master thesis, 2010)Dynamically positioned vessels may experience rapidly changing environmental loads if the vessels are operating in ice-covered waters. The transition between open water to level ice is an abrupt change from no ice loads ... -
Supplementing remote sensing of ice: Deep learning-based image segmentation system for automatic detection and localization of sea ice formations from close-range optical images
(Peer reviewed; Journal article, 2021)This paper presents a three-stage approach for the automated analysis of close-range optical images containing ice objects. The proposed system is based on an ensemble of deep learning models and conditional random field ... -
Supply Chain Design under Uncertainty: Locating LNG distribution centers in an emerging market with uncertain demand
(Master thesis, 2014)According to the International Energy Agency, the global use of natural gas will increase dramatically in the next two to three decades. Due to factors ranging from national and international energy market regulations to ... -
Supply chain development and optimal location of reception points for shipboard carbon capture
(Master thesis, 2022)Den internasjonale sjøfartsorganisasjonen (IMO) har definert obligatoriske tiltak for å redusere klimagass-utslipp fra internasjonal skipsfart, som står for 3% av verdens utslipp. Flertallet av fartøy i drift i dag, samt ... -
Surface Effect Ship with Four Air Cushions Part II: Roll and Pitch Damping
(Peer reviewed; Journal article, 2019)This paper introduce damping of roll and pitch motion on a Surface Effect Ship (SES) in low vessel speeds. The SES consist of two side-hulls, a reinforced rubber bow and stern seal skirt system and four air cushion. The ... -
A survey on modeling and control of thruster-assisted position mooring systems
(Peer reviewed; Journal article, 2020)This review presents a systematic summary of the state-of-the-art development of technological solutions, modeling, and control strategies of thruster-assisted position mooring (TAPM) systems. The survey serves as a starting ... -
Survey report for CRIMAC SFI 2023
(Toktrapport;, Research report, 2024)This cruise report describes the objectives, methods, and preliminary results from the tasks carried out at the CRIMAC SFI survey. The survey was conducted on board RV G.O. Sars between November 15th (Tromsø) and November ... -
Survivability of ships at sea: A proposed model to account for human factors in a safety critical system
(Journal article, 2014)Most serious accidents at sea are caused by minor incidents that escalated into an uncontrolled situation. This study is aiming to develop a model to investigate the likelihood of fatal accidents, given that a critical ... -
Suspended sediments due to random waves including effects of second order wave asymmetry and boundary layer streaming
(Journal article, 2015)The paper provides a practical stochastic method by which the suspended sediment concentration due to long-crested (2D) and short-crested (3D) nonlinear random waves can be calculated. The approach is based on assuming the ... -
Sustainable marine power system design with alternative fuels; A case study of energy efficiency and cost optimization
(Master thesis, 2022)Elektrifisering av skip viser til en ettertraktet besparelse av kostnader og utslipp, og kan oppnås med blant annet ombygging av konvensjonelle skip. En slik elektrifisering gjør design av skip mer liberalt og mer lettvint ... -
Sustainable Power System Design for Green Shipping - a case study of a cruise ferry
(Master thesis, 2021)En bærekraftig utvikling for fremtiden har aldri vært mer relevant ettersom det globale miljøavtrykk fortsetter å vokse. En reduksjon av utslippene som truer det globale livet slik vi kjenner det i dag, er viktig for å ... -
Sway Control on a Surface Effect Ship - using asymmetric vent valve opening
(Master thesis, 2016)The lateral maneuvering for Surface Effect Ships (SESs) in low velocities is highly limited. Due to SESs hull shape in the bow, it is not an option to use conventional means to get lateral thrust, such as tunnel- or ... -
Synergistic control barrier functions with application to obstacle avoidance for nonholonomic vehicles
(Chapter, 2021)Control barrier functions (CBFs) have recently emerged as a means to ensure safety of controlled dynamical systems. CBFs are suitable for obstacle avoidance, where the CBF is often constructed from the distance and relative ... -
A synthesis of feasible control methods for floating offshore wind turbine system dynamics
(Journal article, 2021)During the past decade, the development of offshore wind energy has transitioned from near shore with shallow water to offshore middle-depth water regions. Consequently, the energy conversion technology has shifted from ...