Browsing Institutt for marin teknikk by Title
Now showing items 1662-1681 of 3472
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Ice-Induced Loads on Ship Hulls
(Master thesis, 2012)The calculation of ice-induced loads on ships is still mainly based on empirical models. In order to gain a better physical understanding of the loading on ice-going vessels, Det Norske Veritas launched an ice load monitoring ... -
Ice-propeller impact analysis using an inverse propulsion machinery simulation approach
(Doctoral theses at NTNU;2019:235, Doctoral thesis, 2019) -
Iceberg shape characterization for damage assessment of accidental impacts with ships and offshore structures
(Master thesis, 2013)The northern areas are becoming more and more attractive because off the large oil and gas reservoir that is there. In this area there is a harsh environment and the possibility to collide with an iceberg increases as the ... -
Icing diagnosis in unmanned aerial vehicles using an LPV multiple model estimator
(Journal article; Peer reviewed, 2017)The phenomenon of icing, i.e. ice accretion on aircraft surfaces, affects the flight performance of unmanned aerial vehicles (UAVs). Autonomous icing detection schemes are needed in order to assure high efficiency and limit ... -
Identification and analysis of deficiencies in accident reporting mechanisms for fisheries
(Journal article; Peer reviewed, 2016)Commercial fishing is the most dangerous of professional callings, widely recognized as a major source of fatalities and injuries per population size within participating nations. The majority of reported fisheries injury ... -
Identification and Analysis of Full Scale Ventilation Events
(Journal article; Peer reviewed, 2012)The present paper deals with propeller ventilation in full scale. The paper is based on full scale monitoring data from an offshore supply ship during normal operation. The data was collected by the on-line monitoring ... -
Identification and Valuation of Flexibility in Marine Systems Design
(Master thesis, 2015)Marine systems, typically related to transport services and offshore petroleum projects, are often complex and involve a high degree of uncertainty related to their future operating context. Uncertain factors, such as oil ... -
Identification of Hydrodynamic Parameters for Remotely Operated Vehicles
(Master thesis, 2015)The hydrodynamic parameters that characterize the behaviour of a general work class Remotely Operated Vehice(ROV) are evaluated. This is done by deriving the equation of motion for an ocean vessel moving in 6 degrees of ... -
Identification of Marine Plastics using Hyperspectral Imaging and Raman Spectroscopy
(Master thesis, 2019)Dagens Næringsliv (DN) hadde følgende overskrift 28. Mai i år (forfatter: Jørn Aass); ”Alarmerende forskning: Plast i havet påvirker oksygenet vi puster inn”. Plastforsøpling påvirker havet, som igjen er en sentral del av ... -
Identification of Marine Plastics using Hyperspectral Imaging and Raman Spectroscopy
(Master thesis, 2019)Dagens Næringsliv (DN) hadde følgende overskrift 28. Mai i år (forfatter: Jørn Aass); ”Alarmerende forskning: Plast i havet påvirker oksygenet vi puster inn”. Plastforsøpling påvirker havet, som igjen er en sentral del av ... -
Identification of safety indicators in aquaculture operations based on fish escape report data.
(Peer reviewed; Journal article, 2021)Finfish farming is the most common aquaculture mode in Europe. In Norway, the industry faces sustainability challenges. One major challenge is fish escape, which is a threat to both the environment and the industry's ... -
Identification of the geometric design parameters of propeller blades from 3D scanning
(Peer reviewed; Journal article, 2022)This paper presents a new method for the identification of geometric design parameters of ISO 484 class propeller blades from scanned point cloud data. The method can be used for tolerance inspection and in-line measurement ... -
Identifying safety indicators for safety performance measurement using a system engineering approach
(Journal article; Peer reviewed, 2019)The paper presents a method for the development of safety indicators for a process industry application based on a system engineering perspective. Traditional approaches use probabilistic risk assessment or linear accident ... -
Ill-Structured Commercial Ship Design Problems: The Responsive System Comparison Method on an Offshore Vessel Case
(Journal article; Peer reviewed, 2017)In this paper, we address difficulties in ill-structured ship design problems. We focus on issues related to evaluation of commercial system performance, involving perceptions of value, risk, and time, to better understand ... -
Image Processing and Target Tracking Technology in the Sea Cucumber Fishing Application
(Master thesis, 2019)With the development of people’s living standard, the consumption of the precious marine products is getting higher, and a class of the sea cucumber which grows in the northeast sea area in China is among them. However, ... -
Image Processing for Ice Floe Analyses in Broken-ice Model Testing
(Journal article; Peer reviewed, 2015)The ice floe shape and size distribution are important ice parameters in ice-structure analyses. Before performing an analysis at full scale, the dynamic positioning (DP) experiments in model ice at the Hamburg Ship Model ... -
Image Processing for Ice Parameter Identification in Ice Management
(Doctoral thesis at NTNU;2015:340, Doctoral thesis, 2015)Various types of remotely sensed data and imaging technology will aid the development of sea-ice observation to, for instance, support estimation of ice forces critical to Dynamic Positioning (DP) operations in Arctic ... -
Image Techniques for Identifying Sea-Ice Parameters
(Journal article; Peer reviewed, 2014)The estimation of ice forces are critical to Dynamic Positioning (DP) operations in Arctic waters. Ice conditions are important for the analysis of ice-structure interaction in an ice field. To monitor sea-ice conditions, ... -
Impact analysis of flexible riser
(Master thesis, 2014)Research shows 35% of damage to flexible pipes occurs within the first year. A minimum of these failures are from poor design or manufacturing problems, since factories conduct Factory Acceptance Tests (FAT). Additionally, ... -
Impact assessment of a wind turbine blade root during an offshore mating process
(Journal article; Peer reviewed, 2019)Single-blade installation is a popular method for installing blades on bottom-fixed offshore wind turbines. A jack-up crane vessel is often employed, and individual blades with their roots equipped with mechanical joints ...