Browsing Mechanical and Mechatronics Engineering by Title
Now showing items 905-924 of 1493
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Mathematical Modeling of Transient Transport Phenomena in PEM Fuel Cells
(University of Waterloo, 2009-12-07)The dynamic performance of polymer electrolyte membrane fuel cells (PEMFCs) is of great interest for mobile applications such as in automobiles. However, the length scale of a PEM fuel cell's main components are ranging ... -
Mathematical Modelling of the Material Flow and Microstructural Evolution During the Extrusion of AA3003 Aluminum Alloy
(University of Waterloo, 2013-09-25)A comprehensive mathematical model of the hot extrusion process for aluminum alloys has been developed and validated. The model is capable of predicting the material flow behaviour and microstructure evolution that occurs ... -
Mean Stress Effect in Stress-Life for Hard Steels
(University of Waterloo, 2017-06-01)The work in this thesis examines the effect of mean stress on the fatigue behaviour of very hard (Rockwell C 60) steels (AISI 8822, 8620, 9310, and cold-worked pre-stressing wire). In the mean stress tests, the minimum ... -
A Mean Value Internal Combustion Engine Model in MapleSim
(University of Waterloo, 2010-08-31)The mean value engine model (MVEM) is a mathematical model derived from basic physical principles such as conservation of mass and energy equations. Although the MVEM is based on some simplified assumptions and time averaged ... -
Measurement and Characterization of Heat and Mass Diffusion in PEMFC Porous Media
(University of Waterloo, 2012-09-19)A single polymer electrolyte membrane fuel cell (PEMFC) is comprised of several sub-millimetre thick layers of varying porosity sandwiched together. The thickness of each layer, which typically ranges from 10 to 200μm, is ... -
Measurement and Modeling of Entropy Generation in Microchannels
(University of Waterloo, 2008-06-09)Entropy based design is a novel design method that incorporates the second law of thermodynamics with computational and experimental techniques to achieve the upper limits of performance and quality in engineering technologies. ... -
Measurement Devices for Custom Shoe Manufacturing
(University of Waterloo, 2011-08-30)The majority of North Americans suffer from foot problems at some point in their lives. These foot problems can be divided into three domains ranging from mismatch on healthy feet, to small injuries and deformities and ... -
Measurement of Fuel Regression Rate of a Pool Fire in Crosswind With and Without a Large Downwind Blocking Object
(University of Waterloo, 2010-05-21)Transportation accidents and the resulting fires are an important field of study. At the University of Waterloo Live Fire Research Facility (UWLFRF), an experiment was conducted in partnership with Sandia National Laboratories ... -
Measurement of the Quality Factor for the Micro Electromechanical System Cantilever Devices by Using Non-Destructive Test Methodology
(University of Waterloo, 2014-12-01)Development of the reliability and the performance of Micro Electro Mechanical System (MEMS) devices are the most challenging tasks of scientists and engineers. At the same time, there is a need for advance and more complex ... -
Measurements and Models Related to Solar Optics in Windows with Shading Devices
(University of Waterloo, 2009-04-13)Shading devices have the potential to reduce peak cooling load and annual energy consumption because they can be used to control solar gain. Thus, the need to model shading devices in a glazing system analysis is ... -
Measuring Heat Transfer during Twin Roll Casting of Metals
(University of Waterloo, 2011-01-17)Accurate knowledge of the heat transfer coefficient during casting (between a molten and/or semi-solid material and the mold) is critical to be able to develop representative mathematical models for casting process such ... -
Measuring Smoke Evolution at Full-Scale with Video Recordings
(University of Waterloo, 2021-02-22)Many knowledge gaps exist in our current understanding of fire and smoke dynamics — caused in large part by a lack of data on smoke evolution in fires. Advances in computer technology, however, now make it possible for ... -
Mechanical and Hydromechanical Stimulation of Chondrocytes for Articular Cartilage Tissue Engineering
(University of Waterloo, 2014-05-01)Tissue engineering approaches have attempted to address some of the problems associated with articular cartilage defect repair, but grafts with sufficient functional properties have yet to reach clinical practice. Mechanical ... -
Mechanical and Regenerative Braking Integration for a Hybrid Electric Vehicle
(University of Waterloo, 2008-08-27)Hybrid electric vehicle technology has become a preferred method for the automotive industry to reduce environmental impact and fuel consumption of their vehicles. Hybrid electric vehicles accomplish these reductions ... -
Mechanical and Tribological Aspects of Microelectronic Wire Bonding
(University of Waterloo, 2010-04-28)The goal of this thesis is on improving the understanding of mechanical and tribological mechanisms in microelectronic wire bonding. In particular, it focusses on the development and application of quantitative models of ... -
Mechanical Behaviour of Single Crystal, Pollycrystalline and Nanocrystalline Metallic Nanopillars Under Compression
(University of Waterloo, 2011-09-01)Fabrication techniques, and mechanical behaviours of vertically aligned cylindrical nanopillars of various metals, including tin, bismuth, palladium, indium, rhodium and cobalt have been presented in this work. These, ... -
Mechanical Behaviour of Nanocrystalline Rhodium Nanopillars under Compression
(University of Waterloo, 2012-02-15)Nanomechanics emerged as chemists and physicists began fabricating nanoscale objects. However, there are some materials that have neither been fabricated nor mechanical investigated at the nanoscale, such as rhodium. Rhodium ... -
Mechanical Characterization and Computational Modeling of Snap-cure Epoxy
(University of Waterloo, 2020-09-16)Owing to their high specific mechanical properties and excellent energy absorption characteristics, high-performance carbon fiber-reinforced plastic (CFRP) composite materials are regarded as viable candidates for improving ... -
Mechanical Components Design and Optimization for an All-Wheel-Drive Series Plug-In Hybrid Electric Vehicle
(University of Waterloo, 2015-08-31)The University of Waterloo Alternative Fuels Team (UWAFT) is a student team conceived in 1996, participating in numerous student competitions which aim to reduce emissions and improve fuel economy of passenger vehicles. ... -
Mechanical Degradation of Membrane Electrode Assemblies in Proton Exchange Membrane Fuel Cells
(University of Waterloo, 2017-06-08)The Polymer Electrolyte Membrane (PEM) fuel cell is an ideal emerging alternative power source for transportation; however, before PEM fuel cells’ widespread use, a number of technical challenges need to be overcome, ...