Browsing Mechanical Engineering by Title
Now showing items 87-106 of 184
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Fabrication and characterization of metal oxide nanostructured thin film for photovoltaic application.
(2018)This study focused on fabrication and characterization of nanostructured metal oxide heterojunction solar cells for photovoltaic application. The study involved experimental fabrication of the device and modelling and ... -
Fabrication of affordable and sustainable solar cells using NiO/TiO2 P-N heterojunction.
(Hindawi., 2018)The need for affordable, clean, efficient, and sustainable solar cells informed this study. Metal oxide TiO²/NiO heterojunction solar cells were fabricated using the spray pyrolysis technique. The optoelectronic properties ... -
Finite element and analytical solutions for the optimal design of laminated composites.
(1996)The present study involves the analysis and design optimisation of composite structures using analytical and numerical methods. Five different problems are considered. The first problem considers the design of laminated ... -
Finite element modelling of smart TRIP steel sensors and systems.
(2003)Transformation Induced Plasticity (TRIP) steels undergo a phase transformation when subjected to high levels of mechanical strain. This transformation from a paramagnetic austenitic parent phase to a ferromagnetic ... -
Finite element solutions of optimization problems with stability constraints involving columns and laminated composites.
(2006)The primary aim of this study is to assess the applicability and performance of the finite element method (FEM) in solving structural optimization problems with stability constraints. In order to reach this goal, several ... -
The formulation of process variables for the elimination of defects in a semi-solid high pressure die cast component.
(2006)Semi-Solid Metal (SSM) forming has distinct advantages: strength, near net shape, thick and thin sections and a large scope of materials able to be cast. The aim of this project is to produce a near net shape component ... -
Heat transfer enhancement in nano-fluids suspensions : thermal wave effects and hyperbolic heat conduction.
(2005)The spectacular heat transfer enhancement revealed experimentally in nanofluids suspensions is being investigated theoretically at the macro-scale level aiming at explaining the possible mechanisms that lead to such ... -
High temperature fatigue crack growth behaviour of TIMETAL 21S in an oxidizing environment.
(1995)The high temperature fatigue crack growth behaviour of the newly developed, metastable titanium-based alloy, TIMETAL 21S, was investigated in an inert and an oxidizing environment. The investigation adopted a two pronged ... -
A high-flux solar concentrating system.
(2011)This research investigates the collection of concentrating solar energy and its transmission through optical fibres for use in high temperature applications such as lunar in-situ resource utilisation (ISRU) programmes, ... -
A hybrid reconfigurable computer integrated manufacturing cell for mass customisation.
(2011)Mass producing custom products requires an innovative type of manufacturing environment. Manufacturing environments at present do not possess the flexibility to generate mass produced custom products. Manufacturers’ ... -
The hydrodynamic design and analysis of a liquid oxygen pump impeller for a rocket engine.
(2018)The deployment of micro- and nanosatellites has greatly increased over the past few decades with advances in miniaturized electronics for communication, imaging and attitude control. The South African satellite industry ... -
The hydrodynamic design and analysis of an RP-1 pump for a liquid rocket engine.
(2018)South Africa has a fledgling satellite industry but lacks the ability to launch spacecraft into low Earth orbit. As a result, the University of KwaZulu-Natal’s (UKZN’s) Aerospace Systems Research Group (ASReG) began the ... -
Independent assessment and benchmarking of no/low cost finite element analysis software for linear and non/linear static structural analysis.
(2016)The aim of this research was to determine if the development of low-cost (less than 500 USD) or no-cost analysis software, specifically in the area of computational structural mechanics through finite element analysis ... -
Influence of concentration on properties of spray deposited nickel oxide films for solar cells.
(Elsevier., 2017)Spray pyrolysis technique was used to deposit various concentration of nickel oxide films on glass substrate. The Effect of varying precursor concentration on elemental, morphological and structural properties was ... -
The influence of process factors on the production of semi solid feedstock.
(2000)Semi-solid manufacturing is a near net shape forming process that takes advantage of an alloy's thixotropic behaviour. However, in order to obtain the desired thixotropic properties from an alloy in the semi -solid state, ... -
The influence of sulphidizing attack on the mechanism of failure of coated superalloy under cyclic loading conditions.
(1998)A systematic study of the effect of sulphidizing atmosphere on the High Temperature Low Cycle Fatigue (HTLCF) properties of coated and uncoated unidirectionally solidified MARM002 nickel base superalloy was performed at ... -
Influence of wagon structure on the vertical response of freight.
(2002)Historically, wagons have been designed according to the American Association of Railroads specifications. These require that wagons be designed to withstand a static load between the couplers of 350 tons. This implies ... -
Investigation and design of wet-mill equipment and process technology.
(2003)need to dry-mill the wheat into flour, and as a result, the total cost of conversion from wheat to bread is reduced. The resulting product has been perceived as being more filling than normal bread and it is also more ... -
Investigation and development of structural composite materials for use as electromagnetic shielding agents in the current aerospace industry.
(2010-10-20)Due to the nature of today's competitive electronics market, the development of new electronic -
Investigation into inspection system utilisation for advanced manufacturing systems.
(2017)Varied inspection is an aperiodic inspection utilisation methodology that was developed for advanced manufacturing systems. The inspection scheme was created as a solution to improve manufacturing performance where inspection ...