Browsing Institutt for marin teknikk by Title
Now showing items 1536-1555 of 3413
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Human Reliability and the Impact of Control Function Allocation in the Design of Dynamic Positioning Systems
(Journal article; Peer reviewed, 2019)The design and function allocation of control in complex technological systems have mainly been technology-driven, resulting in increased automation. A human or user perspective is rarely taken in the technological ... -
Human Technical Factors in FPSO-Shuttle Tanker interactions and their influence on the Collision Risk during Operations in the North Sea
(Master thesis, 2014)Following a series of collisions and near-misses, involving shuttle tanker and FPSO performing tandem offloading operations in the North Sea, extensive effort was put to address the issue in the early 2000 s. The aim of ... -
Human-autonomy collaboration in supervisory risk control of autonomous ships
(Journal article; Peer reviewed, 2024)This paper presents a method for developing and testing a risk-based control system, as a first step towards including the human supervisor explicitly in the design of the system. The result is a control system with improved ... -
Human-system concurrent task analysis for maritime autonomous surface ship operation and safety
(Journal article; Peer reviewed, 2019)Maritime Autonomous Surface Ships (MASS) are the subject of a diversity of projects and some are in testing phase. MASS will probably include operators working in a shore control center (SCC), whose responsibilities may ... -
Human-System Concurrent Task Analysis: An Application to Autonomous Remotely Operated Vehicle Operations
(Chapter, 2020)Autonomous systems may operate with different Levels of Autonomy (LoA), from remote control to fully autonomous. The latter is not expected in the near or intermediate future for most systems. Thus, operation relies on the ... -
Hybrid causal logic model for estimating the probability of an icebreaker–ship collision in an ice channel during an escort operation along the Northeast Passage
(Peer reviewed; Journal article, 2023)Under severe Arctic ice conditions, escort operations are the most efficient methods for facilitating shipping. Nevertheless, escort operations are among the most dangerous operations, as they may result in icebreaker–ship ... -
Hybrid Collision Avoidance with Moving Obstacles
(Master thesis, 2019)A considerable amount of work has been done in the field of Autonomous Surface Vehicles (ASV) over the past few decades. Autonomous path planning and collision avoidance (COLAV) are essential for ASV navigating in unknown ... -
Hybrid Collision Avoidance with Moving Obstacles
(Journal article; Peer reviewed, 2019)This paper proposes a hybrid collision avoidance (COLAV) approach based on the integration of a global path planning algorithm and a reactive collision avoidance technique. This combination provides a robust path planning ... -
Hybrid Control of Marine Vessels: Dynamic Positioning in Varying Conditions
(Doctoral theses at NTNU;2017:351, Doctoral thesis, 2017)The next generation marine control systems will, as a step towards increased autonomy, have more automatic functionality in order to cope with a set of complex operations in unknown and varying environments, while maintaining ... -
Hybrid Control to Improve Transient Response of Integral Action in Dynamic Positioning of Marine Vessels
(Journal article, 2015)A hybrid control approach for integral action in the PID control law for dynamically positioned marine vessels is considered. The proposed method is essentially a resetting of the integration gain when the control ... -
Hybrid controller concept for dynamic positioning of marine vessels with experimental results
(Journal article; Peer reviewed, 2018)The next generation marine control systems will, as a step towards increased autonomy, have more automatic functionality in order to cope with a set of complex operations in unknown, challenging and varying environments ... -
Hybrid fuel-cell auxiliary system for an aquaculture vessel
(Master thesis, 2018)Emission reduction in shipping and marine operations is important for the future of this planet and its oceans. This thesis looks into the operation of a hybrid fuel-cell power production system on an aquaculture vessel. ... -
A hybrid kinematic controller for resilient obstacle avoidance of autonomous ships
(Peer reviewed; Journal article, 2020)Resilience is an important feature of autonomous systems. To be resilient, a control system must be stable, robust, and safe. This paper explores the use of hybrid feedback controllers to ensure robustness towards uncertainties ... -
Hybrid marine power plants model validation with strategic loading
(Journal article, 2016)Recent advances in Energy Storage Devices (ESD) technology has enabled new supervisory control strategies for power generation and distribution on hybrid marine power plants, supported by new class society regulations. A ... -
Hybrid model testing of deep-water moored structures by active control of simulated line forces.
(Master thesis, 2010)Increased activity in deeper water areas, in connection with oil and gas exploration, has resulted in a steadily increased demand for model testing technology to predict reliable behavior of floating offshore structures ... -
Hybrid modeling of strategic loading of a marine hybrid power plant with experimental validation
(Journal article; Peer reviewed, 2016)Recent developments in marine power systems, energy storage devices (ESDs) technology, and modification to rules and regulations increase the opportunities to improve efficiency and reduce emissions. One particular application ... -
Hybrid modelling for mooring system monitoring - A digital twin framework for floating wind turbines
(Master thesis, 2022)Flytende havvind har potensiale til å være en viktig bidragsyter mot verdens behov for fornybar energi. Vedlikeholds og installasjons kostnader må reduseres for at teknologien skal bli et konkurransedyktig alternativ til ... -
Hybrid Observer Combining Measurements of Different Fidelities
(Journal article; Peer reviewed, 2016)A signal-based hybrid observer combining measurements of different fidelities is proposed for position and velocity estimation of marine vessels. The concept assumes that noisy position measurements are available only ... -
Hybrid observer concept for sensor fusion of sporadic measurements for underwater navigation
(Peer reviewed; Journal article, 2020)Accurate underwater navigation systems are required for closed-loop guidance and control of unmanned underwater vehicles (UUV). This paper proposes a sensor-based hybrid translational observer concept for underwater ...