Browsing Mechanical and Mechatronics Engineering by Title
Now showing items 1347-1366 of 1504
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A State Estimation Approach for a Skid-Steered Off-Road Mobile Robot
(University of Waterloo, 2013-05-22)This thesis presents a novel state estimation structure, a hybrid extended Kalman filter/Kalman filter developed for a skid-steered, six-wheeled, ARGO® all-terrain vehicle (ATV). The ARGO ATV is a teleoperated unmanned ... -
State Estimation Strategies for Autonomous Underwater Vehicle Fish Tracking Applications
(University of Waterloo, 2008-01-24)As the largest unexplored area on earth, the underwater world has unlimited at traction to marine scientists. Due to the complexity of the underwater environment and the limitations of human divers, underwater exploration ... -
Static and Dynamic Affordance Learning in Vision-based Direct Perception for Autonomous Driving
(University of Waterloo, 2020-01-22)The recent development in autonomous driving involves high-level computer vision and detailed road scene understanding. Today, most autonomous vehicles are using the mediated perception approach for path planning ... -
A Statistical Approach to Quantifying Impact of Multiple Pulse Resistance Spot Welding Schedules on Liquid Metal Embrittlement Cracking
(University of Waterloo, 2019-04-26)Advanced high strength steels (AHSS) are advantageous for automotive applications due to their excellent strength and ductility. However, when coated with zinc for corrosion protection, these steels are susceptible to ... -
Statistical Techniques and Non-Destructive Testing Methods for Copper Wire Bond Reliability Investigation
(University of Waterloo, 2018-09-19)Microelectronic devices require packaging for mechanical protection and electrical interconnections. Reliability challenges in microelectronics packaging are becoming more severe, as applications demand smaller package ... -
Steam Gasification of Excavated Waste Residue (EWR) from a Landfill Bioreactor Operated Under cold Climate Conditions
(University of Waterloo, 2022-09-28)The use of fossil fuel to generate energy has contributed to the emission of greenhouse gases, which is a leading factor in the depletion of the ozone layer. This effect of fossil fuel on the atmosphere has led to the push ... -
Stitch Bond Process of Pd-Coated Cu Wire: Experimental and Numerical Studies of Process Parameters and Materials
(IMAPS, 2013)Cost reduction is the main driver in the recent transition to Cu wire bonding from predominate Au wire bonding. Other cost reduction in packaging comes from new developments in substrates and lead frames, for example, ... -
Stochastic Reconstruction and Morphological Studies of Catalyst Layers of Proton Exchange Membrane Fuel Cells
(University of Waterloo, 2021-11-26)Durability is one of the main obstacles that inhibits the commercialization of polymer electrolyte membrane (PEM) fuel cells for transport applications, in which the microstructure of catalyst layers (CL) under dynamic ... -
Strain Rate Dependent Properties of Younger Human Cervical Spine Ligaments
(University of Waterloo, 2011-09-20)The cervical spine ligaments play an essential role in limiting the physiological ranges of motion in the neck; however, traumatic loading such as that experienced in automotive crash scenarios can lead to ligament damage ... -
Strain rate sensitivities of deformation mechanisms in magnesium alloys
(Elsevier, 2018-08-01)Strain rate sensitivity (SRS) is an important material property that governs the rate dependent mechanical behaviors associated with deformation rate changes, creep, stress relaxation, formability, etc. The variety of ... -
Strategic design of flow structures for single (bio) particle analysis using droplet microfluidic platform
(University of Waterloo, 2019-12-10)This thesis is designed to meet the need for knowledge of droplet-based encapsulation strategies by carrying out systematic fundamental studies based on a double-cross configuration. This configuration has been commonly ... -
A stress analysis method for fatigue life prediction of welded structures
(University of Waterloo, 2015-04-07)In the case of structural weldments, the procedure for estimating fatigue life requires information concerning geometry of the object, loads and material. Detailed knowledge of stress fields in the critical regions of ... -
Structural Response and Wake Vortex Dynamics of Cylindrical Structures Undergoing VIV with Elliptic Trajectories
(University of Waterloo, 2018-05-17)Vortex Induced Vibrations (VIV) of a pivoted circular cylinder were examined through experiments conducted in a water tunnel facility at the University of Calgary. The structural response and wake dynamics of the system ... -
Structure-Property correlation in additive manufactured Ti-5553 components
(University of Waterloo, 2023-01-26)A recently developed metastable β-titanium alloy, Ti-5Al-5V-5Mo-3Cr (Ti-5553), is a potential replacement to existing aircraft landing gear materials, offering a wider processing window along with excellent heat treatability. ... -
A Structured Testing Framework for ADAS Software Development
(University of Waterloo, 2023-08-15)A major task in the design of automated vehicles is the need to quickly and thoroughly validate a development teams algorithms. There currently exists no explicitly defined common standard for developers working on Advanced ... -
Study of a low Re airfoil considering laminar separation bubbles in static and pitching motion
(University of Waterloo, 2019-01-25)Performance of low Reynolds number (Re) devices is highly dependent on their airfoil design. Small wind turbines that usually work in areas with poor wind resources with a vast application from remote to busy urban regions ... -
Study of a MEMS fiber-optic pressure sensor based on Optical Interferometry.
(University of Waterloo, 2017-11-27)The main focus of this thesis is the development of a MEMS optical pressure sensor capable of giving real-time, accurate measurements to a mid-high pressure range. Some traditional devices for acquisition of parameters ... -
Study of Au Ball Bond Mechanism and Reliability on Pd/Ni/Cu Substrate
(University of Waterloo, 2009-09-03)Microelectronic wire bonding is a manufacturing process used to electrically connect integrated circuits with circuit boards or other substrates. Conventionally, balls are molten at the end of a Au bonding wire and ... -
Study of Electrical Grid Profile & Behavior and its Impact on Design and Operation of Adiabatic Compressed Air Energy Storage (A-CAES) Systems
(University of Waterloo, 2019-09-12)Integration of intermittent renewable energy, such as wind and solar, into the electrical grid results in risk of instability, increased cost (due to higher reserve and ancillary requirements), and inefficiency. In Ontario, ... -
A Study of Homogenization and Precipitation Hardening Behaviour of Mg-Ca-Zn Alloys
(University of Waterloo, 2008-02-21)Microstructural evolution during heat treatment and the precipitation hardening response of Mg-Ca-Zn alloys were investigated. The binary Mg-2.5Ca alloy was chosen as the base alloy and the effects of adding one and two ...