Browsing Mechanical & Manufacturing Eng (Theses and Dissertations) by Subject "Engineering, Ph.D."
Now showing items 1-8 of 8
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A Bridgman Furnace Front Tracking Model
(Trinity College (Dublin, Ireland). Department of Mechanical and Manufacturing Engineering, 2015)The Bridgman furnace is widely used in industry and research, mainly because it provides a means to directionally solidify materials in a controlled manner, so that the resulting microstructure, and hence material properties, ... -
Cooling by high speed air jet in orthogonal machining operations
(Trinity College (Dublin, Ireland). Department of Mechanical and Manufacturing Engineering, 2012)Changing environmental awareness has led manufacturing industry to give critical consideration to the use of conventional coolants and traditional cooling techniques in machining processes. Current research shows that ... -
EHD augmentation of convective boiling within a transparent heat exchange
(Trinity College (Dublin, Ireland). Department of Mechanical and Manufacturing Engineering, 2013)This work investigated the influence of electrohydrodynamic forces on the two-phase flow patterns of HFE7000 refrigerant under convective boiling conditions. A flow loop was constructed which featured two novel transparent ... -
Experimental investigations in turbomachinery noise-source identification
(Trinity College (Dublin, Ireland). Department of Mechanical and Manufacturing Engineering, 2014)The exact contribution of each of the various core-noise sources within modern turboshaft engines to the noise radiated from the engine exhaust and into the surrounding environment is poorly understood. The objective of ... -
Micromechanical modelling of normal, drug treated and osteoporotic bone using scanning acoustic microsopy and finite element analysis
(Trinity College (Dublin, Ireland). Department of Mechanical and Manufacturing Engineering, 2011)Ultrasonic methods were exclusively used to image cortical bone at high resolutions. A scanning acoustic microscope was used at a frequency of 150 MHz giving a resolution of 20μm. Images were taken of ovine bone samples ... -
Numerical modelling of parametric resonance of a heaving point absorber wave energy converter
(Trinity College (Dublin, Ireland). Department of Mechanical and Manufacturing Engineering, 2015) -
Optimisation of process parameters and tooling during friction stir welding of AA2024-T3
(Trinity College (Dublin, Ireland). Department of Mechanical and Manufacturing Engineering, 2011)Friction stir welding (FSW) was invented and experimentally proven at The Welding Institute (TWI) in 1991. The process involves the joining of two metal pieces without melting by joining their molecules together. The tool ... -
Time-resolved noise source analysis in subsonic turbulent jets
(Trinity College (Dublin, Ireland). Department of Mechanical and Manufacturing Engineering, 2014)