Institutt for marin teknikk: Nye registreringer
Viser treff 41-60 av 3410
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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) -
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 ... -
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 ... -
Innovating the Innovation System Thinking: a Systemism Model
(Journal article; Peer reviewed, 2023)The complexity of an innovation system, how it works and how to achieve high performance, represents a significant management challenge. As in any complex system, in an innovation system it is mandatory to operate with a ... -
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 ... -
Maritime fleet composition under future greenhouse gas emission restrictions and uncertain fuel prices
(Peer reviewed; Journal article, 2024)This paper studies the maritime fleet composition problem with uncertain future fuel and carbon prices under the restriction of complying with future greenhouse gas (GHG) emission restrictions. We propose a two-stage ... -
Integrated Energy Systems for Green Ports; A Cost Model and Case Study
(Chapter, 2023)In this paper, an integrated port energy system is described and modeled based on cost modeling and including practical constraints. The model uses simulated power data to operate an energy management system (EMS) with ... -
Operation-based Reliability Assessment of Shore-to-Ship Charging Systems Including On-Shore Batteries
(Journal article; Peer reviewed, 2023)In this paper, an operation-based reliability assessment framework is proposed for Shore-to-Ship Charging (S2SC) systems including On-Shore Batteries (OSB). The OSB is considered to support the grid under fast charging ... -
Second-order wave loads on floating wind parks with shared mooring
(Peer reviewed; Journal article, 2023)Wave loads on lattices of marine structures, such as wind parks with shared mooring systems, are considered. Modal excitation induced by second-order low-frequency wave loads is derived, leading to modal quadratic transfer ... -
Serviceability limit state assessment of semi-submersible floating wind turbines
(Peer reviewed; Journal article, 2023)The design of a floating wind turbine (FWT) should satisfy the serviceability limit state (SLS) requirement for an efficient and safe operation throughout the entire work life. The SLS requirements are introduced by the ...