Browsing Department of Mechanical and Materials Engineering Graduate Theses by Title
Now showing items 157-176 of 344
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Gap Bridging in Laser Transmission Welding of Thermoplastics
(2009-09-26)Contour laser transmission welding (LTW) is a technology that has potential for joining large and complicated thermoplastic parts. Thermal expansion is the primary driving force to bridge potential gaps at the weld. A ... -
Gear Fault Detection Using Non-Contact Magnetic Rotation Position Sensors
(2010-10-13)This thesis is an investigation of possible applications for a low cost non-contact magnetic rotational position sensor. A single stage gearbox operating spur gears was instrumented with these sensors along with typical ... -
Heat Transfer in an Airfoil Shaped Strut
(2016-08-31)The heat transfer from a hot primary flow stream passing over the outside of an airfoil shaped strut to a cool secondary flow stream passing through the inside of that strut was studied experimentally and numerically. The ... -
Heat Transfer Modelling and Thermal Imaging Experiments in Laser Transmission Welding of Thermoplastics
(2008-10-09)This thesis presents a comprehensive study on the thermal modelling aspects of laser transmission welding of thermoplastics (LTW), a technology for joining of plastic parts. In the LTW technique, a laser beam passes through ... -
HIGH FIDELITY ADDITIVE MANUFACTURING PROCESS MODELING FOR RESIDUAL STRESS AND DEFORMATION
The ever increasing demand for high speed transport is causing a massive increase in the amount of passengers utilizing air travel. To be able to meet the ever increasing regulatory demands for reduced emissions that are ... -
High flexion kinematics and kinetics for the improvement of artificial knee joints
(2010-10-25)Total knee arthroplasty has been effective in reducing pain, but less so in restoring function, especially for activities requiring deep knee flexion. The philosophy of this dissertation was that more functionally effective ... -
Hybrid Turboexpander and Fuel Cell System for Power Recovery at Natural Gas Pressure Reduction Stations
(2009-11-13)This study investigates the performance of a hybrid turboexpander and fuel cell (HTEFC) system for power recovery at natural gas pressure reduction stations. Simulations were created to predict the performance of various ... -
HYDROGENATED AMORPHOUS SILICON PV AS AN ABSORBER COATING FOR PHOTOVOLTAIC THERMAL SYSTEMS
(2011-11-14)Driven by the limitations of solar-optimized roof space and International Energy Association (IEA) Task 35, there is a renewed interest in photovoltaic solar thermal (PVT) hybrid systems. Current PVT systems focus on cooling ... -
Improved Accuracy in Optical Motion Capture Measurements Leads to Increased Sensitivity to Kinematic Changes
(2016-08-18)Clinical optical motion capture allows us to obtain kinematic and kinetic outcome measures that aid clinicians in diagnosing and treating different pathologies affecting healthy gait. The long term aim for gait centres is ... -
Improvements on Single Point Incremental Forming Through Electrically Assisted Forming, Contact Area Prediction and Tool Development
(2013-11-29)Single Point Incremental Forming (SPIF) is a die-less sheet metal forming method. Because SPIF does not use custom tooling, this process allows for parts to be made at low cost and short lead times. In this thesis electric ... -
IMU-Based Lower-limb joint angles: A comparison of methods
(2015-12-21)Inertial measurement units (IMUs) are a popular option for human movement analysis. The untethered, self-contained nature of IMUs overcomes many limitations of conventional measurement systems. The potential of IMU systems ... -
In-plane plane strain testing to evaluate formability of sheet steels used in tubular products
(2007-09-28)In order to effectively and efficiently hydroform new automotive components, the formability of new tubular steels must be evaluated. Standard forming limit diagrams have been used for decades to evaluate and predict the ... -
Industrial-Scale Autonomous Vehicle Path Following by Feedback Linearized Iterative Learning Control
This work describes and demonstrates, through simulation and field trials, a technique for autonomous wheeled vehicle path following that uses iterative learning control (ILC) performed in a feedback linearized space to ... -
INERTIAL SENSORS FOR KINEMATIC MEASUREMENT AND ACTIVITY CLASSIFICATION OF GAIT POST-STROKE
(2013-08-29)The ability to walk and negotiate stairs is an important predictor of independent ambulation. The superposition of mobility impairments to the effects of natural aging in persons with stroke render the completion of many ... -
Inertial Sensors in Estimating Spatio-Temporal Parameters of Walking: Performance Evaluation and Error Analysis
(2011-08-23)The portability, ease of use and improved accuracy of miniature inertial sensors brought by current microelectromechanical system (MEMS) technology has inspired researchers to develop human movement monitoring system with ... -
The Inhomogeneous Microstructure and Deformation of Similar and Dissimilar Al-Zn Containing Mg Friction Stir Welds
The magnesium-based aluminum-zinc alloys have excellent stiffness to weight ratios, and may be combined by friction stir welding to expand the possible applications. The high aluminum alloy AZ80 in particular has the ... -
INITIATION OF DELAYED HYDRIDE CRACKING IN Zr-2.5Nb MICRO PRESSURE TUBES
(2009-04-25)Pressure tubes pick up hydrogen while they are in service within CANDU reactors. Sufficiently high hydrogen concentration can lead to hydride precipitation during reactor shutdown/repair at flaws, resulting in the potential ... -
Integrated Energy System for a High Performance Building
Integrated energy systems have the potential to reduce of the energy consumption of residential buildings in Canada. These systems incorporate components to meet the building heating, cooling and domestic hot water load ... -
Investigating Catalyst Coated Membrane Equilibration Time For Polymer Electrolyte Membrane Fuel Cell Manufacturing
Mercedes-Benz Canada Inc., Fuel Cell Division, manufactures polymer electrolyte membrane fuel cell stacks for use in vehicles. The manufacturing line is being optimized for efficiency and quality control, in order to uphold ... -
An Investigation of Nano-voids in Aluminum by Small-angle X-ray Scattering
(2008-04-28)Small angle x-ray scattering (SAXS) with synchrotron radiation was used to characterize nano-sized voids in different nominally pure aluminum (Al) alloys produced by quenching. The scattering signal from nano-voids is ...