Mechanical and Mechatronics Engineering: Recent submissions
Now showing items 1-20 of 1483
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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 ... -
Development of a Scalable Machining Feature Recognition System
(University of Waterloo, 2023-12-19)In this thesis, various pre-processing and training techniques were applied to improve the performance of a model trained with an existing machining feature recognition approach by Yeo et al. using a smaller dataset that ... -
Effect of Cu and die geometry on the extrudability of AA6xxx Alloys
(University of Waterloo, 2023-12-14)A series of extrusion trials were conducted with AA6xxx aluminum alloys with different Copper (Cu) levels to understand the influence of alloy content, die geometry, extrusion ratio and extrusion process parameters (ram ... -
Adapting Regenerative Braking Strength to Driver Preference
(University of Waterloo, 2023-12-13)The modern automotive industry has witnessed a growing emphasis on adapting the driving experience to individual drivers. With the rising popularity of electrified vehicles, the implementation of regenerative braking ... -
Furniture Fire Dynamics and Smoke Flow in a Two-Story House With Mechanical Ventilation
(University of Waterloo, 2023-12-11)Synthetic materials in modern furniture, combined with airtight construction practices developed as a response to the call for energy efficient homes, have increased the likelihood of a residential fire becoming ventilation ... -
Controlling deposition location in atmospheric-pressure spatial atomic layer deposition
(University of Waterloo, 2023-12-05)Nanoscale thin films exhibit unique properties and functionalities and are significant in a wide variety of applications and various sectors such as microelectronics, energy harvesting and storage applications, optoelectronics, ... -
Forging Preform Design Optimization for Structural Magnesium Components
(University of Waterloo, 2023-11-30)An increasing emphasis on emissions reduction and improved fuel economy is leading to a broader utilization of magnesium (Mg) alloys in vehicle light-weighting applications. Mg alloys are the lightest structural metals and ... -
Experimental Characterization and Finite Element Modelling of Cervical Facet Joint Mechanics
(University of Waterloo, 2023-11-29)Cervical facet joints are involved in the complex movements and associated disorders of the head and neck. The capsular ligament of the cervical facet joint plays an important role in guiding and restraining joint motions ... -
A Computational Framework for Predicting the Adhesion Strength of Bonding in Cold Spray
(University of Waterloo, 2023-11-28)In recent years, Cold Spray technology has proven to be a promising method of powder deposition in surface coating and additive manufacturing applications. This process is done without melting the particles prior to ... -
Visual-lidar Map Alignment for Change Detection in Infrastructure Applications
(University of Waterloo, 2023-11-22)Current human-based infrastructure inspections face several problems. Firstly, human inspectors face safety risks working in hazardous environments and reaching challenging areas in order to inspect an infrastructure asset ...