Blar i Fakultet for ingeniørvitenskap (IV) på dokumenttype "Journal article"
Viser treff 41-60 av 7530
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A comparative analysis of the fluid-structure interaction method and the constant added mass method for ice-structure collisions
(Journal article, 2016)The constant added mass (CAM) method and the fluid-structure interaction (FSI) method are widely used to simulate ship-ship and ship-ice collisions. In the CAM method, the hydrodynamic effect of the surrounding water is ... -
A comparative study between traditional topology optimization and lattice optimization for additive manufacturing
(Journal article; Peer reviewed, 2019)Topology optimization (TO) aids designers to come up with new ideas that would be impossible to be designed without this technology. However, the optimized results are usually characterized by high geometric complexity, ... -
A comparative study of different methods for predicting the long-term extreme structural responses of the combined wind and wave energy concept semisubmersible wind energy and flap-type wave energy converter
(Journal article; Peer reviewed, 2018)The combined wind and wave concept semisubmersible wind energy and flap-type wave energy converter was developed in the EU FP7 project MARINA Platform. It consists of a four-column semisubmersible with a 5-MW wind turbine ... -
A comparative study of the stochastic averaging method and the path integration method for nonlinear ship roll motion in random beam seas
(Journal article; Peer reviewed, 2017)In this paper, the energy-based stochastic averaging method and the path integration method are applied to study the stochastic response of the nonlinear roll motion in random beam seas. Specifically, the Markov diffusion ... -
A comparative study of the velocity and vorticity structure in pipes and boundary layers at friction Reynolds numbers up to 10^4
(Journal article; Peer reviewed, 2019)This study presents findings from a first-of-its-kind measurement campaign that includes simultaneous measurements of the full velocity and vorticity vectors in both pipe and boundary layer flows under matched spatial ... -
A comparative study on dynamic responses of spar-type floating horizontal and vertical axis wind turbines
(Journal article; Peer reviewed, 2017)Interest in the exploitation of offshore wind resources using floating wind turbines has increased. Commercial development of floating horizontal axis wind turbines (FHAWTs) is emerging because of their commercial success ... -
A Comparative Tribocorrosion Study of Additive Manufactured and Wrought 316L Stainless Steel in Simulated Body Fluids
(Journal article; Peer reviewed, 2018)In this study, the corrosion and tribocorrosion behavior of additive manufactured (AM) 316L is investigated and compared to wrought 316L. The experiments were performed in both a 0.9 wt% NaCl solution and a simulated body ... -
A comparison between numerical and approximate methods for rapid calculation of NSIFs
(Journal article; Peer reviewed, 2019)To more rapidly predicting the integrity of components weakened by sharp notches, notch stress intensity factors (NSIFs) are usually evaluated. Many methods have been proposed evaluating NSIFs, ranging from the stress ... -
A comparison of extreme structural responses and fatigue damage of semi-submersible type floating horizontal and vertical axis wind turbines
(Journal article; Peer reviewed, 2017)Currently development of floating wind turbines for deep water is mainly based on horizontal axis wind turbines (HAWTs). However, floating vertical axis wind turbines (VAWTs) are possible alternative due to their potential ... -
A Comparison of Hazards and Efficiencies of Conventional and Adaptive Control Algorithms Using Systems-Theoretic Process Analysis
(Journal article; Peer reviewed, 2019)Control systems are an important and increasingly complex part of most industrial and non-industrial systems. As such, identifying and handling associated risks is increasingly important. Systems- Theoretic Process Analysis ... -
A comparison of physical and numerical modeling of homogenous isotropic propeller blades
(Journal article; Peer reviewed, 2020)Results of the fluid-structure co-simulations that were carried out as part of the FleksProp project are presented. The FleksProp project aims to establish better design procedures that take into account the hydroelastic ... -
A Comparison of Post-combustion Capture Technologies for the NGCC
(Journal article; Peer reviewed, 2017)Four different post-combustion capture technologies are compared for the same NGCC (electric efficiency 58.1% without CO2 capture). The technologies are aqueous amine, polymeric membranes, a low temperature sorbent and ... -
A comparison of the performance of mono-Si and poly-Si photovoltaic modules operating under Kosovo climate condition
(Journal article; Peer reviewed, 2018)The performance analysis and evaluation of a real grid-connected photovoltaic (PV) system operating under the mild continental climate condition of Kosovo are conducted in this paper. The PV system is installed on a flat ... -
A comparison of two fully coupled codes for integrated dynamic analysis of floating vertical axis wind turbines
(Journal article; Peer reviewed, 2017)This paper presents a comparison of two state-of-the-art codes that are capable of modelling floating vertical axis wind turbines (VAWTs) in fully coupled time-domain simulations, being the HAWC2 by DTU and the SIMO-RIFLEX-AC ... -
A comprehensive investigation on the performance of durian rind as a lost circulation material in water based drilling mud
(Journal article; Peer reviewed, 2018)Oil and gas operators worldwide are expecting service companies to deliver integrated techniques to minimize, if not prevent, drilling problems. Drilling fluids perform vital functions to ensure the success of drilling ... -
A comprehensive model for char particle conversion in environments containing O2 and CO2
(Journal article; Peer reviewed, 2015)In this work, conversion of char is studied in a simulation code that includes a simplified heterogeneous adsorption–desorption reaction mechanism for char chemical reactivity and uses GRI-Mech 3.0 as the chemical kinetic ... -
A comprehensive numerical investigation of the impact behaviour of an offshore wind turbine blade due to impact loads during installation
(Journal article, 2019)For installing offshore wind turbines into deep waters, use of floating crane vessels is essential. One of the major challenges is their sensitivity to wave-induced vessel and crane tip motions, which can cause the impact ... -
A Comprehensive Survey of Prognostics and Health Management based on Deep Learning for Autonomous Ships
(Journal article; Peer reviewed, 2019)The maritime industry widely expects to have autonomous and semiautonomous ships (autoships) in the near future. In order to operate and maintain complex and integrated systems in a safe, efficient, and cost-beneficial ... -
A Comprehensive Thermal and Structural Transient Analysis of a Boiler’s Steam Outlet Header by Means of a Dedicated Algorithm and FEM Simulation
(Journal article; Peer reviewed, 2020)Increasing the share of renewables in energy markets influences the daily operation of thermal power units. High capacity power units are more frequently operated to balance power grids and, thus, steam boilers are exposed ... -
A computational approach to expose conversation dynamics in engineering design activities
(Journal article, 2017)In this paper, we apply a computational approach to expose conversation dynamics in design conversations. We apply this approach to a case study comprising of two sessions, with 300 speaker turns respectively. The resulting ...