Department of Mechanical and Structural Engineering and Materials Science (TN-IMBM): Nye registreringer
Viser treff 21-40 av 1682
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Two-body dynamic simulations of a combined semi-submersible floating offshore wind turbine and torus wave energy converter
(Peer reviewed; Journal article, 2023)Dynamic responses of a combined wind and wave energy system which consist of a 5MW semi-submersible floating offshore wind turbine (FOWT) and a torus-shaped wave energy converter (WEC) are investigated. In the investigated ... -
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 ... -
Prediction of Fatigue Crack Initiation under Variable Amplitude Loading: Literature Review
(Peer reviewed; Journal article, 2023)Metallic materials are widely employed in engineering constructions, and one of the most common failure mechanisms in metals is fatigue failure. Even though metal fatigue has been studied for almost 160 years, many problems ... -
Applying a machine learning method for cumulative fatigue damage estimation of the IEA 15MW wind turbine with monopile support structures
(Peer reviewed; Journal article, 2023)Offshore support structures are critical for offshore bottom-fixed wind turbines, as they bear nearly all the mass and loading of wind turbine systems. In addition, the support structures are generally subjected to a harsh ... -
Experimental assessment of cracked tubular joints repaired with crack-deflecting holes and weld-toe grinding
(Peer reviewed; Journal article, 2023)Tubular joints in offshore structures for energy production are exposed to cyclic loading and may experience fatigue cracking. Presently, the inspection method commonly used for such structures will primarily detect whether ... -
Utbyttbar Skibinding
(Bachelor thesis, 2023)Et oppsett for alpintski kan variere veldig basert på hvilken type skikjøring som skal gjøres og hvordan forholdene er i bakken. Hovedsakelig er det utformingen på skien som bør endres basert på om det er mye løs snø, skare ... -
Internal clearance behaviour in healthy and faulty bearings
(Peer reviewed; Journal article, 2023)Internal clearance is a critical parameter in bearing design and operation because it affects the bearing's performance. It can be considered as a special type of the looseness fault. Several studies indicate that rolling ... -
Literature review on thin-walled and cellular structure designs for energy absorption
(Peer reviewed; Journal article, 2023)Bio-inspired structure is a topic of immense interest to researchers worldwide. In order to maximize energy absorption through biomimetic structures, this article presents bio-inspired structure particularly, thin walled ... -
Impact of and solutions to effects of climate changes for Longyearbyen, Svalbard, Norway
(Peer reviewed; Journal article, 2023)Climate changes forces us to make significant mitigation and adaptation measures. As temperature rises and the environmental conditions changes, a variety of challenges occur. Across the whole globe, harming consequences ... -
Availability of fresh water in cold climate regions
(Peer reviewed; Journal article, 2023)Challenges related to the availability of fresh water in cold climate regions are discussed with emphasis on possible degradation of the quality of drinking water. The permafrost in this region has been consistent in making ... -
Floating wind turbines structural details fatigue life assessment
(Peer reviewed; Journal article, 2023)Fatigue damage prediction is essential for safety of contemporary offshore energy industrial projects, like offshore wind turbines, that are to be designed for sufficiently long operational period of time, with minimal ... -
Dynamic analysis and validation of a multi-body floating wind turbine using the moving frame method
(Peer reviewed; Journal article, 2023)This research applies the moving frame method (MFM) to the multi-body dynamic analysis of an OC3 phase IV spar buoy with the NREL 5MW turbine. Further, it verifies previous results obtained through numerical comparisons ... -
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 ... -
Dementia death rates prediction
(Peer reviewed; Journal article, 2023)Background Prevalence of dementia illness, causing certain morbidity and mortality globally, places burden on global public health. This study primary goal was to assess future risks of dying from severe dementia, given ... -
Convolutional Neural Networks and Feature Fusion for Flow Pattern Identification of the Subsea Jumper
(Peer reviewed; Journal article, 2023)The gas–liquid two-phase flow patterns of subsea jumpers are identified in this work using a multi-sensor information fusion technique, simultaneously collecting vibration signals and electrical capacitance tomography of ... -
Experimental and numerical investigation of residual stresses in proximity girth welds
(Peer reviewed; Journal article, 2023)International fabrication codes and standards provide minimum distance criteria for proximity welds, although rigorous justification is lacking. These distances are either based on practical experience or mutual agreement ... -
Novel methods for reliability study of multi-dimensional non-linear dynamic systems
(Peer reviewed; Journal article, 2023)This research presents two unique techniques for engineering system reliability analysis of multi-dimensional non-linear dynamic structures. First, the structural reliability technique works best for multi-dimensional ... -
Numerical study on vibratory extraction of offshore wind turbine monopile foundations under sandy seabed condition
(Peer reviewed; Journal article, 2023)The wind industry has experienced a rapid growth in Europe over the last decades. The early generation turbines were designed for a life of 20–25 years. Decommissioning of offshore wind turbines is becoming more important ... -
An Attribute Perspective on Regulatory Regimes in Risk Governance
(Peer reviewed; Journal article, 2023)Increasing interest from stakeholders has brought new focus on risk governance and risk regulation, such as the regulator’s execution of duty and tangible results on safety and environmental protection in oil and gas ... -
Numerical investigation on rock fragmentation under decoupled charge blasting
(Peer reviewed; Journal article, 2023-05)Blasting using decoupled charge is extensively applied in rock excavation and rock fragmentation. In this study, the rock fragmentation induced by blasting using decoupled charge is investigated by combined finite element ...