Institutt for marin teknikk: Nye registreringer
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Reliability Analysis of Crack Growth Occurrence for a Secondary Hull Component due to Vibration Excitation
(Peer reviewed; Journal article, 2024)Ship hull vibration is a significant contributor to fatigue crack growth and the major sources of vibrations are found to be the main engine vibration excitation, the wave-induced springing and whipping loads, and the ... -
New Renewable Hydrothermal Liquefaction (HTL) Biofuel: A Combustion and Emissions Study in an Optical Engine
(Journal article; Peer reviewed, 2023)This study involves the investigation of municipal solid waste (MSW) based biofuel in order to demonstrate its utilization as a diesel blendstock in a compression ignition (CI) engine. The biofuel was produced from the ... -
Effect of atmospheric stability on the dynamic wake meandering model applied to two 12 MW floating wind turbines
(Peer reviewed; Journal article, 2023) -
Optimal Ship Fuel Selection under Life Cycle Uncertainty
(Journal article, 2024)Shipowners need to prepare for low-emission fuel alternatives to meet the IMO 2050 goals. This is a complex problem due to conflicting objectives and a high degree of uncertainty. To help navigate this problem, this paper ... -
Wake Effect Mitigation of Floating Offshore Wind Farms Combining Layout Optimization, Turbine Repositioning and Yaw-based Wake Redirection
(Master thesis, 2023)Floating wind turbines despite the potential to harness energy from deep offshore areas where higher average wind speeds face challenges in terms of competitiveness. One approach to raising the competitiveness of a wind ... -
Camera-Sonar Combination for Improved Underwater Localization and Mapping
(Journal article; Peer reviewed, 2023)Taking advantage of the complimentary properties of sonars and cameras can improve underwater visual odometry and point cloud generation. However, this task remains difficult as the image generation concepts are different, ... -
A Methodology for Tuning of Computational Vessel Models Utilizing Wave Measurements From X-Band Marine Radar and Wave Buoy
(Chapter, 2023)Accurate estimation of the wave field and subsequent vessel response prediction are vital for making crucial judgments on the safe and timely execution of marine operations. Decision support systems based on the Response-Based ... -
An Analysis of the Impact Forces on a Jack-up Leg During Installation on Stiff Seabed Conditions
(Master thesis, 2023)The ongoing global energy transition has led to significant growth in the offshore wind sector. This growth has resulted in a high demand for offshore installation vessels like the 'Aeolus', and the need to push up their ... -
Onsite Blade Exchange on a Tension-Leg Platform Floating Wind Turbine using a Self-Climbing Crane
(Master thesis, 2023)Floating offshore wind turbines offer a means to access wind resources in waters that are too deep for bottom-fixed offshore wind turbines. To operate a floating wind farm, it must be possible to perform maintenance on the ... -
Data-driven modeling of hydrodynamic loading using NARX and harmonic probing
(Peer reviewed; Journal article, 2023)Optimizing floating wind turbines and their mooring systems requires validated computational models that predict wave-frequency and low-frequency hydrodynamic loads. Low-frequency loads are crucial for determining extreme ... -
A systems approach to hazard identification for solar-powered and wave-propelled unmanned surface vehicle
(Peer reviewed; Journal article, 2024)Decarbonization is a trend in the maritime industry and may include the use of alternative energy sources on ships. At the same time, autonomous ships are under development. In the future, the two technologies may be ... -
A Bayesian Approach to Risk-Based Autonomy, with Applications to Contact-Based Drone Inspections
(Journal article; Peer reviewed, 2023)Enabling higher levels of autonomy while ensuring safety requires an increased ability to identify and handle internal faults and unforeseen changes in the environment. This article presents an approach to improve this ... -
Proceedings of the 4th International Workshop on Autonomous Systems Safety
(Research report, 2023) -
Safe Autonomy in Marine Robotics
(Doctoral theses at NTNU;2024:44, Doctoral thesis, 2024)The use of marine robots has become increasingly common in various disciplines and industries, such as oceanography, marine biology, archaeology, transportation, offshore energy, fisheries, and security. However, the marine ... -
Method for consistent along-track sharpness in a push-broom imaging system
(Journal article; Peer reviewed, 2023)The along track spatial resolution in push broom imaging systems depends on platform parameters and imaging settings. This paper present a method for achieving a consistent spatial resolution for varying exposure times. ... -
Comparison of Extreme Wind and Waves Using Different Statistical Methods in 40 Offshore Wind Energy Lease Areas Worldwide
(Peer reviewed; Journal article, 2023)With the ongoing global drive towards renewable energy, several potential offshore wind energy lease areas worldwide have come into focus. This study aims to estimate the extreme wind and wave conditions across several ... -
Techno-economic modeling of zero-emission marine transport with hydrogen fuel and superconducting propulsion system: Case study of a passenger ferry
(Peer reviewed; Journal article, 2023)This paper proposes a techno-economic model for a high-speed hydrogen ferry. The model can describe the system properties i.e. energy demand, weight, and daily operating expenses of the ferry. A novel aspect is the ... -
Integrated Power and Energy System for Green Marine Ports; A Preliminary Design Approach
(Chapter, 2023)Electrification and alternative fuels with low carbon intensity are coming together to shape the future sustainable marine transport through integrated port energy systems. In this paper, a generic economic modeling approach ... -
Estimation of Long-Term Fatigue and Extreme Responses of Large-Diameter Monopiles for Offshore Wind Turbines
(Doctoral theses at NTNU;2024:26, Doctoral thesis, 2024)Offshore wind energy is a crucial part of the global effort to transition towards a decarbonized energy system. In this context, the foundations used to support offshore wind turbines (OWTs) play a significant role in ...