The thesis includes a literature survey of small hydraulic turbines, incorporating a historical review. The possible role of "micro hydros" in generating power in various parts of the world, and particularly in Iran, is discussed. The theory of turbo machinery, particularly with…
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Virtual simulations of the behaviour of mechanical systems are of widespread use in academia and industry. Mechanical structures are often analysed using the finite element method, where deterministic models with one particular set of physical parameters are employed. However, t…
This thesis encompasses the analysis of TSN systems and their multi-objective design methods. TSN nodes are networked through interpolation and activation, similar to a gain-scheduling or local model/controller network. However, to achieve accuracy and ease of commissioning with…
Column separation on both the upstream and downstream sides of a valve in an aviation kerosene pipeline was the subject of an investigation involving the method of characteristics to solve the partial differential equations governing pressure transient propagation. Particular at…
The performance of conical diffusers with axial and swirling flew has been considered. As a necessary starting point the various criteria used for defining performance have been reviewed and have been extended to swirling flew cases. A new 'AREA-PLOT' method, which unifies prese…
This thesis presents the findings of a research study investigating the energy-absorbing characteristics of the foam sandwich cores reinforced with aluminium, steel and carbon fibre-reinforced polymer (CFRP) cylindrical tubes under quasi-static and dynamic loading conditions. In…
Almost 40 to 57% of Enterprise Resource Planning (ERP) projects fail to realise any benefit, run over budget or time. Only a few published works explicitly focus on ERP Critical Success Factors (CSFs) in Make-to-Order (MTO) manufacturing small and medium size enterprises (SMEs).…
This research work focused on evaluations of improving the acceleration, cold start transient performances and emissions in a common rail direct injection (CRDI) turbocharged diesel engine. The temperature impacts on the engine emissions were investigated at ambient temperatures…
The dynamic performance of a turbocharged diesel engine during transient operation has been studied. For appropriate analysis of data obtained from engine transient operation, four alternative automated filtering methods were implemented on the cycle-by-cycle in-cylinder pressur…
As an engineering design practitioner both as an educator as well as a practicing design consultant it became clear that there was a need for a sustainability measurement tool for the mechanical engineering product designer who actually designs products, that is, the engineer wh…
Numerous testing regimes have been used in vitro to assess the fatigue behaviour of acrylic bone cements. While some attempts have been made to introduce an optimal protocol that measures the fatigue life of bone cement under similar stress conditions to those exist in vivo, the…
Energy from Waste (EfW) technologies are beneficial for both energy generation and as a waste management option. However they face significant challenges due to the heterogeneous nature of municipal solid waste. The overall aim of the research reported in this thesis was therefo…
This thesis investigates enhanced methods for analysing non-linear effects in propagating laminar flames, enabling more accurate evaluation of laminar flame characteristics such as Markstein length and unstretched flame speed whilst proposing a new method for evaluating extincti…
The overall aim of the project/research was to develop finite element modelling/process simulation capability to predict workpiece surface integrity following machining of advanced aerospace alloys. The modelling work employed the general-purpose commercial finite element (FE) s…
In order to accurately predict vehicle dynamic properties when tires impact high obstacles or large bumps, appropriate tire models need to be developed and characterised. The Flexible Ring Tire (FTire) model is one of the models for predicting the transient dynamic responses whe…
Even in the absence of specific evidence it is surely unthinkable to imagine Napolean Bonaparte himself, when considering the potential benefits of invading England, failing to weigh against them the costs of building a tunnel under \(La\) \(Manche\). In the light of the conside…
Welding is an important process in manufacturing and fabrication where improving the weld quality and reducing the cost are the main targets. In view of that, extensive research is still being carried out to improve efficiency of the existing welding processes and developing alt…
Future robotic exploration missions within the Solar System, focussing on either scientific discovery or the emerging field of In-Situ Resource Utilisation (ISRU), shall require the development of technologies which are capable of exploring to ever-greater depths beneath the pla…
This thesis investigates the way to reduce the maintenance cost and increase the life cycle of the offshore wind turbines, as in the offshore case maintenance is highly difficult and expensive. Firstly, we study the possibility to replace the vulnerable and expensive DC link capacit…
At present, sustainable manufacturing process has been widely demanded by manufacturing industry to address the financial pressure from increasing energy price and the political pressure from legislation on reduction of environmental impact. The motivation of this research is to…