Browsing Mechanical Engineering by Issue Date

Now showing items 1-7 of 7

Dynamic modelling of a bolted disc rotor assembly

Blignaut, Gert (2008)

A project investigating the behaviour of an assembled preloaded rotor was performed for an M-Tech qualification in the Mechanical Engineering Department. Pre-Stressing of mechanical structures is widely applied to improve ...
Vibration condition monitoring and fault classification of rolling element bearings utilising Kohonen's self-organising maps

Nkuna, Jay Shipalani Rhulani (2013-08-21)

Bearing condition monitoring and fault diagnosis have been studied for many years. Popular techniques are applied through advanced signal processing and pattern recognition technologies. The subject of the research was ...
Mechanical shock values applied in condition monitoring of bearings operating under variable speed and load conditions

Olivier, Allan Andre (2014-08)

Monitoring the condition of equipment in industry is very important to prevent unplanned breakdowns and to prolong their life. This is necessary, since it is not always economically viable to stop equipment at regular ...
Advanced modelling of porous screens in aerodynamic diffusers using variable resistance factors

Janse van Rensburg, Jacobus Johannes (2014-12)

Strict emission legislation has forced industry in general to seriously consider the negative impact it has on the environment, specifically concerning emissions from burning fossil fuel into the atmosphere. In cases ...
Modelling stain rate sensitive nanomaterials' mechanical properties: the effects of varying definitions

Sob, Peter Baonhe (2016-06)

Presently there exist a lot of controversies about the mechanical properties of nanomaterials. Several convincing reasons and justifications have been put forward for the controversies. Some of the reasons are varying ...
Performance analysis and modelling of diesel engine operational characteristics using pyrolytic oil from scrap tyre

Mwanzi, Maube Obadiah (2017-07)

In this work, an investigation on the fraction of tyre pyrolysis oil with a similar distillation range to that of automotive diesel (150 – 360 oC) was carried out to determine its suitability as an alternative or additive ...
Optimal geometric configuration of a cross bore in high pressure vessels.

Nziu, P. K. (2018-04)

The purpose of this study was to develop analytical and numerical solutions to be used in the design of thick walled high pressure vessels for optimal location of a cross bore. In addition, the effects of internally applied ...