Vitenskapelige publikasjoner (TN-IMBM)
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Assessing some statistical and physical modelling uncertainties of extreme responses for monopile-based offshore wind turbines, using metocean contours
(Peer reviewed; Journal article, 2024-02)This study examines the influence of probabilistic models for wave parameters in the joint environmental model and hydrodynamic/soil models on extreme mudline bending moments for monopile-based wind turbines at representative ... -
The effect of weak acids on active corrosion rate in top-of-line corrosion
(Peer reviewed; Journal article, 2024-07)The corrosion rate of pipelines in the petroleum industry is heavily influenced by the weak acids present in the production stream. In a series of experiments at 65 °C, weak acids enhanced the cathodic reaction currents, ... -
Dynamic response of a single point mooring submersible fish cages in waves and current
(Peer reviewed; Journal article, 2023)Submersible fish cages are designed for installing in the open sea sites that are subjected to violent sea conditions to reduce the hydrodynamic forces acting on the fish cages. To assess the dynamic responses of a single ... -
An approach for fatigue life assessment of a road bridge based on measured corrosion and actual traffic loading
(Peer reviewed; Journal article, 2023)Fatigue and corrosion play a significant role in the aging of steel bridges, especially in a marine environment. An absence of fatigue strength curves for details which are exposed to corrosive environments, realistic ... -
A Control Algorithm of Active Wave Compensation System Based on the Stewart Platform
(Peer reviewed; Journal article, 2023)Aim at the actual engineering requirements of wind power operation and maintenance under complex sea conditions, a control method of the active wave compensation system for maintenance ships based on the Stewart platform ... -
Reuse of decommissioned offshore steel components for new buildings: A case study
(Peer reviewed; Journal article, 2023)Reuse process of structural steel members, which are extracted from decommissioned offshore platform, for new apartment building is presented in this paper. An index is introduced to assess the technical feasibility of the ... -
Numerical analysis of centrifugal water pump impeller under varying loads
(Peer reviewed; Journal article, 2023)Centrifugal pumps are widely used to move liquids from one place to another at varying pressure and flow rate, and to an elevated height for irrigation, water supply plants, and steam power plants. The load variations often ... -
Stability analysis of a granite-based geopolymer sealant for CO2 geosequestration: In-situ permeability and mechanical behavior while exposed to brine
(Peer reviewed; Journal article, 2024)When considering the use of geopolymers (GPs), as potential alternatives for Portland cement, high durability during exposure to brine at encountered downhole is a key requirement. This study delves into the response of a ... -
A novel design approach for estimation of extreme responses of a subsea shuttle tanker hovering in ocean current considering aft thruster failure
(Peer reviewed; Journal article, 2022)The subsea shuttle tanker (SST) is an innovative 33 600-ton underwater cargo tanker designed to transport CO2 to marginal fields. During offloading, the SST will approach and hover in the vicinity of the subsea well. A ... -
Safety design study for energy harvesters
(Peer reviewed; Journal article, 2023-10)Modern offshore and onshore green energy engineering includes energy harvesting—as a result, extensive experimental investigations, as well as safety and reliability analysis are crucial for design and engineering. For ... -
Bivariate statistics of floating offshore wind turbine dynamic response under operational conditions
(Peer reviewed; Journal article, 2022)FOWT (Floating offshore wind turbines) belong to the modern offshore wind energy industry generating green renewable energy. Accurate extreme loads and response prediction during power generation is an important design ... -
Scour and Burial of Spherical Bodies, Short Cylinders, and Truncated Cones Induced by Bichromatic and Bidirectional Waves
(Peer reviewed; Journal article, 2024)This article provides a method by which the scour and self-burial of spherical bodies, short cylinders, and truncated cones that are induced by bichromatic and bidirectional waves could be derived. The empirical scour and ... -
Triply periodic minimal surfaces based functionally graded biomimetic scaffold fabrication via stereolithography
(Peer reviewed; Journal article, 2023)Triply Periodic Minimal Surfaces (TPMS), a class of intricate mathematical surfaces, have emerged as a promising framework for scaffold design due to their ability to replicate the complex geometries found in biological ... -
Dynamic response of a floating dock under corrosion-induced accidents
(Peer reviewed; Journal article, 2023)Dynamic responses of a floating dock under corrosion-induced accidents are studied using a numerical method. The numerical model is proposed to calculate the dynamic responses of the floating dock during operations. It ... -
Utilizing multiple criteria decision-making optimization methods to machine LM25Al/VC material under electro-discharge machining processes
(Peer reviewed; Journal article, 2023)In this work, sparking electro-discharge machining (EDM) process parameters are optimized by using multiple criteria decision-making (MCDM) methods. The work piece utilized for the investigation was LM25 aluminum alloy ... -
Flow over a step cylinder using partially-averaged Navier-Stokes equations with application towards dynamic subsea power cables
(Peer reviewed; Journal article, 2023)Understanding the flow characteristics of buoyancy sections in power cable and umbilical configurations is crucial for analyzing floating offshore wind turbine systems. Buoyancy sections decouple the motions from the floater ... -
Critical Review of Comparative Study of Selective Laser Melting and Investment Casting for Thin-Walled Parts
(Peer reviewed; Journal article, 2023)Thin-walled structures are a significant and growing portion of engineering construction, with a wide range of applications, including storage vessels, industrial buildings, warehouses, aircraft, automobiles, bridges, ... -
A novel design of a hybrid glulam-steel substructure for the IEA 15-MW floating wind turbine
(Peer reviewed; Journal article, 2023)Wind energy has become increasingly recognised as a very promising type of renewable energy. In addition, floating offshore wind turbines have facilitated the development of electricity production in intermediate (45-150 ... -
Assessment of a novel PTO system for swell energy convertors using digital twin modelling
(Peer reviewed; Journal article, 2023)There is no lack of ideas and prototypes for wave energy converters (WECs). However, existing WECs are designed to extract energy from waves at normal to high frequencies and typically focus on close-to-shore steep waves ... -
Marine Operations in Arctic conditions
(Peer reviewed; Journal article, 2023)Marine operations require careful early planning and thereafter detailed planning prior to project execution. The time from initiating an operation to finalization of the activity is typically several days. The activity ...