Mechanical and Mechatronics Engineering: Recent submissions
Now showing items 1-20 of 1492
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Variation in powder size distribution for electron beam melting of Ti48Al2Cr2Nb - density and surface roughness effects
(University of Waterloo, 2024-04-25)Additive manufacturing (AM), also known as 3D printing, is an innovative method for producing complex geometries with minimal material waste. Aerospace, medical, and battery fields are a few sectors that employ AM as a ... -
Development of a Social Robot for the Study of Robot Roles in Robot-Assisted Language Learning
(University of Waterloo, 2024-04-25)The objective of this thesis encompasses both the development of a novel social robot, named ”Maple,” and the examination of its effectiveness in various roles within the context of education and Human-Robot Interaction ... -
Computational modeling of trabecular bone indentation and development of a new test method to perform unconstrained load-induced subsidence of an intervertebral body fusion device
(University of Waterloo, 2024-04-24)Intervertebral body fusion devices (“interbody cages”) used in spinal surgeries are susceptible to axial and/or rotational subsidence into the underlying trabecular bone of the spinal vertebrae. Despite the variety of ... -
Additive Manufacturing of Ceramic Li7La3Zr2O12 Solid Electrolytes for Solid-State Battery Applications
(University of Waterloo, 2024-04-24)Solid-state lithium-ion batteries (SSLIB) are increasingly attracting attention due to their advantageous properties, including enhanced safety, non-flammability, higher energy density, durability, and lightweight design, ... -
Advanced hybrid laser welding of pipeline steels using novel technologies
(University of Waterloo, 2024-04-23)Laser beam welding using a high energy density source is a promising method for joining thick plates due to its deep penetration and high productivity, although there are drawbacks such as poor gap-bridging ability, and ... -
Quantifying Human Mental States in Physical Human-Robot Interaction
(University of Waterloo, 2024-04-23)To support independent living among older adults, we propose the introduction of robots as domestic service providers capable of assisting with daily activities like showering, toileting, and transferring. These tasks ... -
Empirical Design Rules for Binder Jetting Additive Manufacturing
(University of Waterloo, 2024-04-23)Metal binder jetting additive manufacturing (BJAM) is an additive manufacturing (AM) process that builds parts from a feedstock metal powder material by spreading a layer of powder, then depositing liquid binder over the ... -
Additive Manufacturing and Combustion of Graphene Based Nanothermite Aerogels
(University of Waterloo, 2024-04-23)Nanothermites are a key material for engineering applications related to energy and heat release, such as welding, heating, and pyrotechnics. The ability to additively manufacture energetic nanothermite structures with ... -
Design and Development of Microneedle Pads for Automated External Defibrillators (AEDs)
(University of Waterloo, 2024-04-19)With the prominent and life-threatening issue of sudden cardiac arrest (SCA), the demands for increased accessibility and effectiveness of AEDs continue to rise. Timely access to automated external defibrillators (AEDs) ... -
Process Optimization, Numerical Modelling, and Microstructure Control in Laser Powder Bed Fusion of Ti-5553 Parts
(University of Waterloo, 2024-03-14)Additive manufacturing (AM) is an advanced production technique that creates components by depositing material layer by layer. AM has been deployed industrially for producing metallic parts from alloys which pose challenges ... -
Sizing-Design Method and Performance Improvement for Adiabatic Compressed Air Energy Storage Systems
(University of Waterloo, 2024-03-06)Electrification of the energy system through renewable sources is an effective solution to combat the adverse effects of climate change. Despite the potential, integrating renewables into the electrical grid faces a ... -
Smooth and Time-Optimal Trajectory Planning for Multi-Axis Machine Tools
(University of Waterloo, 2024-02-26)This thesis presents novel methods for feedrate optimization and toolpath smoothing in CNC machining. Descriptions of the algorithms, simulation test cases, and experimental results are presented. Both feedrate optimization ... -
Brain Response to Overpressure and Recoil Loads from Discharge of Long-Range Precision Rifle
(University of Waterloo, 2024-02-02)The presence of concussion-like symptoms related to overpressure exposure and recoil forces from long-range precision rifle (LPR) training has been reported in the literature. However, the recoil head kinematics, overpressure ... -
Characterizing the Constitutive Behaviour and Austenite Decomposition of an 1,800 MPa Press Hardenable Boron Steel
(University of Waterloo, 2024-02-02)The mechanical behaviour of a new 1,800 MPa strength grade of Al-Si coated, 37MnB5 press-hardenable steel, designated PHS 1800, was investigated under hot stamping conditions. Prior to mechanical testing, a novel heat ... -
Hydrogel-Based Flexible Electronics Devices as Human Motion Sensors and Triboelectric Nanogenerators
(University of Waterloo, 2024-02-02)Flexible electronics is an emerging discipline in recent years because of its outstanding flexibility. It can be adapted to particular scenarios such as folded or bent, where conventional electronics are complex to apply. ... -
Temperature-resistant hydrogel wearable sensors and thermoelectric devices
(University of Waterloo, 2024-01-25)With the rapid advancements in biosensing and healthcare technology, traditional polymer and semiconductor sensors and electronic devices are increasingly unable to meet people's needs. As researchers delve deeper into ... -
Design, Implementation, and Control of a Magnetic Levitated Planar Motor
(University of Waterloo, 2024-01-22)Magnetic levitated planar motors employ electromagnetic force to levitate and manipulate the movers. They have the characteristics of multi-degrees-of-freedom motion, contactless operation, high precision and high acceleration. ... -
Utilization of Industrial Waste Alloy as An Alternative to Micron-Al in Energetic Applications
(University of Waterloo, 2024-01-22)Aluminum-enhanced solid propellant is one of the most commonly used propellants people have ever developed. It is cost-effective, simple to store and handle, and energetic for thrust production due to the extremely high ... -
Analysis of the Economic and Carbon Emission Reduction Potential of Fuel Cell Electric Vehicle-to-Grid in Alberta and Ontario
(University of Waterloo, 2024-01-16)Connecting battery electric vehicle (BEV) to the grid is a way of utilizing existing BEV fleet to cut the cost on energy storage and provide monetary incentives to vehicle owners. By coordinating the charging and discharging ... -
Advancing the Industrialization of Thin Film Deposition: Tools for Mitigating Powder Formation in Spatial-ALD Systems and for Real-time, In-situ Metrology
(University of Waterloo, 2024-01-11)Thin-film manufacturing through Spatial Atomic Layer Deposition (SALD) offers high throughput and cost-saving advantages, but challenges such as powder formation and the lack of real-time in-situ metrology hinder its ...