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Mechanical and Mechatronics Engineering: Recent submissions
Now showing items 141-160 of 1512
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Quantitative Optical Gas Imaging using Broadband Mid-wavelength Infrared Single-Channel and Multispectral Cameras
(University of Waterloo, 2022-11-25)Quantifying and limiting methane emissions from upstream oil and gas is an efficient strategy to reduce anthropogenic climate change and has received considerable attention from regulators in recent years. Quantification ... -
Capillary-discharge ignition of dispersed-phase Al@CuO core-shell thermite particles in a liquid filled microchannel
(University of Waterloo, 2022-11-09)Aluminum based thermites are a broad class of highly tunable solid energetic materials that can be formulated to perform as pyrotechnics, propellants, or explosives. Their functional versatility, energy density, reactivity ... -
Energy Management System Infrastructure for Solar Photovoltaic Energy System
(University of Waterloo, 2022-10-31)In recent years, more distributed energy resources (DERs) such as solar PV, wind and more are being installed to compensate for the growing energy demand. It is vital to properly monitor and integrate these new energy ... -
Constitutive and Friction Characterization and Simulation of AA7075 Aluminum Alloy Sheet under Die Quenching Conditions
(University of Waterloo, 2022-10-31)This thesis investigates the die quench forming of AA7075 aluminum alloy sheet, including the constitutive and friction behaviour at elevated temperatures. Experiments examining characterization of friction behaviour and ... -
Laser fabrication and performance of NiCr strain gauges
(University of Waterloo, 2022-10-26)Increasing demand for smart devices has spurred the development of advanced sensors with smaller and more adaptable form factors. The integration of thin film technology into sensors such as strain gauges has the potential ... -
The Assessment of Practical Per-Cooling Targeting Peripheral Limbs During Exercise in Hot and Humid Environments
(University of Waterloo, 2022-10-25)When excess body heat generation owing to the performance of exercise coincides with the heat dissipation limitations presented by hot and humid environments, the body’s ability to maintain thermal balance is compromised, ... -
A Methodology for Data-Informed Process Control in Progressive Die Sheet Metal Forming
(University of Waterloo, 2022-10-25)This thesis investigates the coupled relationship between the strip transfer and forming operations in progressive die sheet metal forming, including the effects of the strip layout geometry, and its effect on the process ... -
Fabrication of Hard-to-Process Ni-Based Superalloy Thin-Wall Parts Made by Laser Powder Bed Fusion
(University of Waterloo, 2022-10-24)Thin-wall part fabrication is significant for aerospace, automotive, and thermal applications, which require complex metallic features hard to manufacture using conventional manufacturing processes. Laser powder bed fusion ... -
Three-Dimensional CT Imaging and Microstructural Mechanical Modeling of Corrosion and Freeze-Thaw Damage of Concrete
(University of Waterloo, 2022-10-17)Corrosion and freeze-thaw can cause detrimental damage to concrete structures. Understanding concrete damage mechanisms at the micro-level can play an essential role in implementing effective preventive measures and efficient ... -
Development of a Model-based Control Strategy for Autonomous Vehicle Collision Avoidance
(University of Waterloo, 2022-09-29)Human inattention is the leading cause of traffic accidents in many regions around the world. Autonomous vehicle technologies are rapidly emerging with the aim to remove the human factor in key driving procedures, such as ... -
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 ... -
Microwave plasma synthesis of graphene and its laser-optical in situ characterization
(University of Waterloo, 2022-09-27)Graphene and its derivatives possess exceptional electrical, mechanical, and thermal properties, which enable the use of these materials in numerous existing and emerging applications. Accordingly, large-scale graphene ... -
Characterization and Modelling of 3rd Generation Advanced High Strength Steel Automotive B-pillars from Forming to Crash
(University of Waterloo, 2022-09-26)This thesis investigates the application of 3rd Generation Advanced High-Strength Steels (3rd Gen AHSS) with ultimate tensile strengths of 980 and 1180 MPa to the forming and crash performance of an automotive B-pillar. ... -
Assessment of Occupant Response in Frontal Bus Crash Scenarios using Human Body Models to Improve Public Transportation Safety
(University of Waterloo, 2022-09-26)There has been limited investigation regarding occupant safety in transit bus crash scenarios. Experimental testing and numerical modelling can provide the insight required to reduce injury risk to transit bus passengers. ... -
Free-Flow Counterflow Gradient Focusing for Protein Fractionation
(University of Waterloo, 2022-09-23)In free-flow electrophoresis (FFE), a pressure-driven flow applied perpendicular to the electric field enables the continuous separation of charged solutes. Meanwhile, outlets located at the end of the separation region ... -
Adhesive bonding of polymer composites reinforced with carbon unidirectional non-crimp fabrics
(University of Waterloo, 2022-09-22)Lightweight materials have always played a significant role in product design, but global trends toward emissions reduction and resource efficiency have further increased the importance of this topic. In particular, the ... -
Riemann solvers with non-ideal thermodynamics: exact, approximate, and machine learning solutions
(University of Waterloo, 2022-09-22)The Riemann problem is an important topic in the numerical simulation of compressible flows, aiding the design and verification of numerical codes. A limitation of many of the existing studies is the perfect gas assumption. ... -
Design of a Robotic Rollator for Sit-To-Stand and Walking Assistance of Older Individuals with Mobility Disorders
(University of Waterloo, 2022-09-22)Many elderly people suffer from a loss of mobility due to musculoskeletal disorders, neurological conditions, diabetes, frailty, or other impairments, and thus require assistance during walking and Sit-to-Stand (STS) ... -
Catalytic Conversion of Waste Plastics into Value-Added Chemicals
(University of Waterloo, 2022-09-08)Plastics are indispensable in many industries (such as packaging and transportation) owing to its durability, diversity and versatilities. However, the decomposition rate of plastic is far from generation speed. The plastic ... -
Generative Thermal Design Through Boundary Representation and Deep Reinforcement Learning
(University of Waterloo, 2022-09-08)Advancement in Additive Manufacturing (AM) allows fabrication of complex geometries. This provides the opportunity to think beyond hand-designed topologies. The main goal of this dissertation is to build a Generative Design ...