Department of Mechanical and Structural Engineering and Materials Science (TN-IMBM): Recent submissions
Now showing items 781-800 of 1741
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Comparison of spar and semi-submersible floating wind turbine concepts with respect to seasickness of the maintenance personnel
(Master thesis, 2021)Floating offshore wind turbines (FOWTs) are remotely located structures that are operating without humans on board. The technicians are expected to be on board from time to time throughout the life cycle of FOWTs for ... -
Accurate Predictions of Ultimate Limit State Wave Loads on Bottom Fixed Wind Turbine
(Master thesis, 2021)The breaking wave loads on a bottom fixed monopile foundation has been determined in this project with the aid of a Pressure Impulse Method. The pressure impulse method is the integration of pressure bounded by time within ... -
Numerical evaluation of the axial capacity of cracked tubular members
(Master thesis, 2021)The objective of this thesis is to evaluate the axial capacity of cracked tubular elements analytically and numerically and compare these with laboratory tests. The laboratory tests have been performed by a different student ... -
Studie av spenning i bruddgrensetilstand for etter-oppspente rektangulære bjelker med intern ubundet kabel.
(Master thesis, 2021)The use of unbounded tendons as a prestressing technique in the design and rehabilitation of concrete slabs / beams has in recent years been preferred due to its simple construction design, cost efficiency and maintenance ... -
Analysis of a semi-submersible floating offshore wind turbine subjected to ship collisions
(Master thesis, 2021)Wind energy has enormous potential in reducing greenhouse emissions and curbing global warming. The number of installed offshore wind turbines has been continuously growing worldwide in recent years. Since offshore farms ... -
Flow Simulation to Study SMART KITE Design
(Master thesis, 2021)The Potsdam Propeller Test Case PPTC propeller was used as the turbine for the flow simulation of the tethered undersea kite TUSK energy system in this project. OpenFOAM ‘propeller’ and ‘wingmotion’ tutorials used as ... -
CFD investigation of fluid flow within elbow pipes
(Master thesis, 2021)Elbow pipes are crucial parts of many fluid transport systems, including ones used in the oil and gas industry. The curved shape of such pipes induces centrifugal forces on the internal flow, ultimately affecting the flow ... -
Adaptation of circular economy concept into building design process
(Master thesis, 2021)Circular economy (CE) is an economic system that is restorative and regenerative by design and aims to keep products, components, and materials at their highest utility and value always, distinguishing between technical ... -
Literature Review on Repair methods for Damaged Offshore Joints
(Master thesis, 2021)Offshore structures subject to severe environmental loading may exhibit fatigue damage over time. In particular, fatigue cracks are a significant concern in welded components. Previous work has been published regarding the ... -
Analysis of the applicability of LNG production as exemplified by the Shtokman gas condensate field
(Master thesis, 2021)In the modern world, liquefied natural gas plays an increasing role; its consumption grows from year to year. Liquefied natural gas is relevant since liquid form gas occupies 600 times less volume, is environmentally ... -
Mixed Reality Applications for Safety Trainings in Wind Energy Sector: A Case Study
(Master thesis, 2021)The international renewable energy agency (IRENA) forecast that the wind industry will grow at an exponential rate in the coming decades. This enormous growth has created the need and demand for qualified workforce which ... -
3D printed Aluminium Bronze. Microstructure and mechanical properties of an aluminium-bronze alloy
(Master thesis, 2021)Design and production of the blades is a sophisticated process that needs to be optimized for given permanence of the rotor. Shape of the rotor requires complicated casting. For small series of production it is wise to use ... -
Mooring for Floating Structure in Deep Waters along with a Case Study in ABAQUS
(Master thesis, 2021)Available literature on offshore mooring is very scattered, unorganized, and available codes and guidelines are very conservative while determining design parameters, such corrosion rate, fatigue factor etc. Mooring design ... -
Predicting the Cancer Tumor Position in Liver Using Finite Element Analysis (FEA) and Artificial Intelligence (AI)
(Master thesis, 2021)The computational power and advantages of the Finite Element Method (FEM) are noticeable. When dealing with high nonlinearity of the materials and geometrical complexity, FEM is a powerful solution, depending on the correct ... -
Material characteristics of 3-D printed steel
(Master thesis, 2021)Additive manufacturing of metals is a technology where metal parts are built layer by layer from a 3D model. To do this a heat source is used to melt metal powder or metal rods. There is a large selection of processes that ... -
Optimization of Spar-Buoy Foundation for Offshore Wind Turbines Using Open-Source Programs
(Master thesis, 2021)Low carbon and renewable energy are paramount to tackle climate change and supply the increasing energy demand in a sustainable way. In recent years, the offshore wind industry has attracted growing attention for its ... -
Environment-assisted fatigue of steel bridges: A conceptual framework for structural integrity/life assessment
(Master thesis, 2021)The purpose of this thesis is to propose a framework/methodology based on a recently proposed fatigue strength curve of corroded steel to assess the life of an existing steel bridge exposed to environment-assisted fatigue. ... -
Applicability of Existing Crack Controlling Criteria for structures with Large Concrete Cover Thickness
(Peer reviewed; Journal article, 2021-07)Widely used crack width calculation models and allowable crack width limits have changed from time to time and differ from region to region. It can be identified that some crack width calculation models consist with ... -
Fiberarmert betong - Analyse av fiberorienteringens påvirkning på mekaniske egenskaper ved bruk av computertomografi
(Master thesis, 2021)Denne oppgaven omhandler stålfiberarmert betong. Stålfiberarmert betong er et konstruksjonsmateriale sammensatt av betong og stålfiber, hvor de to materialene jobber sammen for å oppnå ønsket kapasitet. Oppgaven tar for ... -
Microstructure and Mechanical Properties of Maraging Steels
(Bachelor thesis, 2021)This study investigates and compares the influence of different heat treatments and holding time on the microstructural and mechanical property (hardness) of SLM MS300 steel and conventionally produced MS350 steel. The ...