Browsing Vitenskapelige publikasjoner (TN-IMBM) by Title
Now showing items 352-371 of 442
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Safety related study of Expanding Pin systems application in lifting and drilling equipment within Construction, Offshore, and Marine sectors
(Peer reviewed; Journal article, 2021)A questionnaire-based survey has been performed among original equipment manufacturers (OEMs), sub-suppliers, engineering companies, end-users, service & maintenance, and “others”, as part of an investigation to clarify ... -
Scalability and compatibility analyses of airborne wind technology for maritime transport
(Peer reviewed; Journal article, 2019)Wind energy is a source freely available in the oceans. New developments in the wind industry are towards high altitude wind turbines, known as Airborne Wind Energy Systems. The airborne wind technology is rapidly developing ... -
Sensitivity Study of Design Parameters for a Fuel Cell Powered Multirotor Drone
(Peer reviewed; Journal article, 2021)The use of multirotor drones for industrial applications is accelerating, and fuel cell based propulsion systems are highlighted as a promising approach to improve endurance – one of the current main limitations. Due to ... -
Sensitivity to hydrogen induced cracking, and corrosion performance of an API X65 pipeline steel in H2S containing environment: influence of heat treatment and its subsequent microstructural changes
(Peer reviewed; Journal article, 2021-07)In this investigation, the effect of microstructural changes and phase equilibria on corrosion behavior and hydrogen induced cracking (HIC) sensitivity of an API X65 pipeline steel was studied. For this purpose, heat ... -
Service and inventory model for maintenance workshop in the short cycle operation region: Agent-based simulation approach
(Peer reviewed; Journal article, 2023)Tools used in the North Sea region has a high cycle and come very often to maintenance workshop to be checked, repaired if needed and prepared for the next operations. The availability of spare parts at the workshop plays ... -
Servitization: A Model for the Transformation of Products into Services through a Utility-Driven Approach
(Journal article; Peer reviewed, 2018-12)The economies of the industrialized world have become dominated by services. Many manufacturing companies have changed from producing products to providing services. However, many companies still lag behind in this ... -
Short-Crested Wave–Current Forces on a Concentric System with an ARC Exterior Porous Wall
(Peer reviewed; Journal article, 2023-03)In this study, the potential flow theory is adopted to develop an analytical solution to the diffraction problem of a short-crested wave–current incident on a concentric system consisted of an arc exterior wall and interior ... -
Simulated wind-generated inertial oscillations compared to current measurements in the northern North Sea
(Journal article, 2018-06)Measured current speed data show that episodes of wind-generated inertial oscillations dominate the current conditions in parts of the northern North Sea. In order to acquire current data of sufficient duration for robust ... -
Simulation of peak tension loads in Subsea power cables during installation
(Peer reviewed; Journal article, 2021-11)At present, most of the insurance claims in the offshore wind industry are due to cable failures where a large percentage occurs during the installation of the array and export cables. As the reliability of the cables ... -
Spar-type vertical-axis wind turbines in moderate water depth: A feasibility study
(Peer reviewed; Journal article, 2018)The applications of floating vertical-axis wind turbines (VAWTs) in deep water have been proposed and studied by several researchers recently. However, the feasibility of deploying a floating VAWT at a moderate water depth ... -
Spare Part Transportation Management in the High North
(Journal article, 2013)The demanding physical conditions of the Arctic, remote location, and uncertainty regarding the travel time can both heighten the challenges related to transportation of spare part in the region. Managing to get the ... -
Spectral characteristics of surface-layer turbulence in the North Sea
(Journal article, 2017-10)According to IEC 61400-1 and IEC 61400-3 standards, the wind load on the rotor-nacelle assembly of offshore wind turbines should be estimated from the Kaimal or Mann spectral models, unless site-specific full-scale ... -
Spin injection from EuS/Co multilayers into GaAs detected by polarized electroluminescence
(Peer reviewed; Journal article, 2019)We report on the successful spin injection from EuS/Co multilayers into (100) GaAs at low temperatures. The spin injection was verified by means of polarized electroluminescence (EL) emitted from AlGaAs/GaAs-based ... -
Stability of Vessels in an Ice-free Arctic
(Peer reviewed; Journal article, 2020-09)One consequence of the declining ice cover in the Arctic is increased areas of open seas. These new open sea areas lead to some challenging aspects related to ship stability. Longer fetch lengths, associated with build-up ... -
State of the art in structural health monitoring of offshore and marine structures
(Peer reviewed; Journal article, 2023)This paper deals with state of the art in structural health monitoring (SHM) methods in offshore and marine structures. Most SHM methods have been developed for onshore infrastructures. Few studies are available to implement ... -
State-of-the-art of crack propagation modelling in tubular joints
(Peer reviewed; Journal article, 2019)Offshore structures are conventionally designed for a service life between 20-30 years and mostly used beyond their service life. They are operated up to the point where costs of operations, maintenance and repair exceed ... -
Station keeping of a subsea shuttle tanker system under extreme current during offloading
(Peer reviewed; Journal article, 2023)This paper presents the station keeping challenge of the subsea shuttle tanker (SST) design during underwater loading and offloading at a subsea well under an extreme current environment. The paper investigates the movement ... -
Statistical evaluation of tubular joint SCFs from test data and finite element analyses
(Peer reviewed; Journal article, 2023)Stress concentration factors (SCF) derived from both FEA and measurements from laboratory experiments are associated with uncertainties. To understand these uncertainties, SCF values can be determined from a series of tests ... -
Statistical Modeling and Applications of Joint Distributions for Significant Wave Height, Spectral Peak Period, and Peak Direction of Propagation: A Case Study in the Norwegian Sea
(Peer reviewed; Journal article, 2023)The estimation of long-term extreme response is a crucial task in the design of marine structures. The target extreme responses are typically defined by annual exceedance probabilities of 10-2 and 10-4. Various approaches ... -
Strength analysis of 3D printed carbon fibre reinforced thermoplastic using experimental and numerical methods
(Peer reviewed; Journal article, 2019)A study of strength of composite materials produced by 3D printing technology is presented. The samples fabrication and tests to determine the strength both in bending and in tension of the composite materials have been ...