Browsing Institutt for marin teknikk by Title
Now showing items 2798-2817 of 3421
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Sea state estimation using multiple ships simultaneously as sailing wave buoys
(Journal article; Peer reviewed, 2019)The article presents initial ideas towards a network-based approach for sea state estimation used for marine operations and other maritime applications. In principle, all available means, ranging from in situ buoys, fleet ... -
Sea State Estimation Using Quadratic Discriminant Analysis and Partial Least Squares Regression
(Journal article; Peer reviewed, 2019)This paper proposes non-model based sea state estimation methods for a dynamically positioned vessel. Sea state estimation entails finding the wave direction, significant wave height and peak wave period and is done based ... -
Sea state estimation using vessel response in dynamic positioning
(Journal article; Peer reviewed, 2018)This paper presents a novel method for estimating the sea state parameters based on the heave, roll and pitch response of a vessel conducting station keeping automatically by a dynamic positioning (DP) system, i.e., without ... -
Sea State Limitations for the Deployment of Subsea Compression Station Modules
(Master thesis, 2012)Deployment of a large box structure in many sea states has been investigated. Two deployment methods are compared; crane installation over the side and through moonpool installation. The structure is 12 [m] long, 6 [m] ... -
Sea state optimization of ILT equipment integrated with rigid pipelines on TechnipFMC's reel-lay vessel Deep Energy
(Master thesis, 2022)Denne masteroppgaven omhandler rigid-rørlegging med integrerte ILT-installasjoner på TechnipFMCs «reel-lay» skip Deep Energy på grunt vann. Rigide rørledninger og installasjoner har blitt studert i et bredt og generelt ... -
SeaArm - A Subsea Multi-Degree of Freedom Manipulator for Small Observation Class Remotely Operated Vehicles
(Chapter, 2018)This paper presents the design of a novel low cost 4DOF fully electric subsea manipulator for small work class ROVs. The manipulator is designed to work on a wide range of typical observation class ROVs ranging from 5 kg ... -
SeaArm-2 - Fully electric underwater manipulator with integrated end-effector camera
(Chapter, 2021)This paper presents an electrically driven underwater manipulator named SeaArm-2 and considers the kinematic control approach to perform autonomous fixed-base grasping of an object of known size and shape at unknown positions ... -
Seakeeping Analysis Comparison Between Viscous And Inviscid CFD
(Master thesis, 2018)With the global community's increased focus on a green and more sustainable environment, stricter demands are being invoked on ship design. Consequently, knowledge on how the vessel responds in a realistic sea-condition ... -
Seakeeping capabilities of sailing cruise and passenger vessels
(Master thesis, 2021)I 2018 annonserte FNs Sjøfartsorganisasjon et mål om å redusere utslipp av drivhusgasser med minst 50% fra 2008 til 2050. For å oppnå dette, er det avgjørende at industrien tar i bruk grønnere propulsjonssystemer. Mens det ... -
Seamless integration of design and Kirchhoff–Love shell analysis using analysis-suitable unstructured T-splines
(Peer reviewed; Journal article, 2020)Analysis-suitable T-splines (ASTS) including both extraordinary points and T-junctions are used to solve Kirchhoff–Love shell problems. Extraordinary points are required to represent surfaces with arbitrary topological ... -
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 ... -
Sediment Transport in Combined Wave–Current Seabed Boundary Layers due to Streaming
(Peer reviewed; Journal article, 2021)The sediment transport in the seabed boundary layer due to wave-induced streaming has been investigated for nonzero angle between the current and the waves. The mean sediment transport is a result of interaction between ... -
Seepage effects on bedload sediment transport rate by random waves
(Journal article, 2014)The mean net bedload sediment transport rate beneath random waves is predicted taking into account the effect of seepage flow. This is achieved by using wave half-cycle bedload sediment transport formulas valid for regular ... -
Seismic Inversion for Identification of Soil Stiffness and Damping for Offshore Wind Turbines
(Master thesis, 2016)Non-invasive in-situ measurements can determine the soil properties in an undisturbed way, providing a more accurate characterization of the soil stiffness and damping. This report focuses on the multichannel analysis of ... -
Selection of smolt weight in Atlantic Salmon farming under uncertainty
(Master thesis, 2022)På grunn av biologiske utfordringer og et strengere regelverk, stagnerer veksten i lakseoppdrettsnæringen og fortjenestemarginene synker. Påvekst av større smolt er en av de mest lovende strategiene for å generere vekst i ... -
Self-supervised multimodal representations for marine robotics
(Master thesis, 2023)This thesis work explores multimodal learning techniques for habitat classification using remotely sensed and visual data. Autonomous Underwater Vehicles (AUVs) play a vital role in marine scientific surveys, providing ... -
Semantic Segmentation in Underwater Ship Inspections: Benchmark and Dataset
(Journal article; Peer reviewed, 2022)In this paper, we present the first large-scale dataset for underwater ship Lifecycle Inspection, Analysis and Condition Information (LIACI). It contains 1893 images with pixel annotations for 10 object categories: defects, ... -
Semi-closed containment systems in Atlantic salmon production - Comparative analysis of production strategies
(Master thesis, 2017)Atlantic salmon farming in Norway are facing huge challenges related to sea lice, mortality and increasing production costs. In the fight against these challenges the Norwegian government are encouraging the industry to ... -
Semi-Submersible Platform Design to Meet Uncertainty in Future Operating Scenarios
(Master thesis, 2012)This master thesis in marine systems design is about how to assess the future uncertainty in a design setting, or as the topic puts it; semi-submersible platform design to meet uncertainty in the future operation scenarios. ... -
Sensitivity Analysis of large Rotor Diameter on Offshore Wind Turbines with Suction Foundation
(Master thesis, 2014)This thesis has an objective aimed at understanding the sensitivity of the support structure for an offshore wind turbine with bucket foundation as the turbines get larger. The focus has been on the response and forces on ...