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Mechanical and Mechatronics Engineering: Recent submissions
Now showing items 321-340 of 1512
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Part Performance Measurement, Analysis and Optimization for Binder Jetting Additive Manufacturing
(University of Waterloo, 2020-10-22)Binder Jetting (BJ) is an additive manufacturing (AM) process where objects are formed layer by layer. The manufacturing of parts is performed by depositing powder layer by layer and binding them together using a binding ... -
Assessment of Geometrical Features of Internal Flaws with Artificial Neural Network Optimized by a Thermodynamic Equilibrium Algorithm
(University of Waterloo, 2020-10-21)In nondestructive testing (NDT), geometrical features of a flaw embedded inside the material such as its location, length, and orientation angle are critical factors to assess the severity of the flaw and make post-manufacturing ... -
Domain Adaptation for Autonomous Driving
(University of Waterloo, 2020-10-20)Metric based method is a promising approach to domain adaptation, which aims to align the marginal distribution of different domains with a similar conditional distribution. The thesis explores applying domain adaptation ... -
Simultaneous Local Motion Planning and Control, Adjustable Driving Behavior, and Obstacle Representation for Autonomous Driving
(University of Waterloo, 2020-10-08)The evolving autonomous driving technology has been attracting significant research efforts in both academia and industry because of its promising potentials. Eliminating the human intervention in driving will drastically ... -
Development of corrosion resistant coatings for Mg alloys and a general corrosion fatigue model
(University of Waterloo, 2020-09-30)Mg alloys find widespread applications in transportation industries especially in cars and trucks because of their edges in light-weight design, which can greatly help improve the fuel efficiency and decrease the greenhouse ... -
A Comprehensive Model for Filtration and Adsorption of Intermediate Nanoparticles
(University of Waterloo, 2020-09-22)Nanoparticles have been extensively studied in environmental research because of their great impact on human health and the environment. Airborne particles are recognized as the second largest risk factor for non-communicable ... -
Fire and Heat Transfer Modelling of Small and Large Scale Experiments
(University of Waterloo, 2020-09-18)The present work aims to provide insight on the small- and full-scale models of building construction materials and structures in fire scenarios. Steps are taken toward a long-term goal, which is to develop a complete model ... -
Mechanical Characterization and Computational Modeling of Snap-cure Epoxy
(University of Waterloo, 2020-09-16)Owing to their high specific mechanical properties and excellent energy absorption characteristics, high-performance carbon fiber-reinforced plastic (CFRP) composite materials are regarded as viable candidates for improving ... -
A comparative investigation into the influence of the constitutive model on the prediction of in-plane formability for Nakazima and Marciniak tests
(Elsevier, 2019-11)The present study investigates the use of both Marciniak and Nakazima tests to generate the forming limit curves (FLCs) for a power-law hardening dual phase steel, DP980, and an aluminum-magnesium alloy, AA5182, that ... -
Imitation Learning and Direct Perception for Autonomous Driving
(University of Waterloo, 2020-09-15)This thesis presents two learning based approaches to solve the autonomous driving problem: end-to-end imitation learning and direct visual perception. Imitation learning uses expert demonstrations to build a policy that ... -
Synchronized Motion Control of Dual Robot Manipulator Systems
(University of Waterloo, 2020-09-14)Dual manipulator systems are capable of accomplishing a variety of tasks, such as manipulating large and heavy objects and assembling parts, that might be impossible for single manipulators. These collaborative tasks ... -
The cold wire gas metal arc welding (CW-GMAW) process: Description and Applications
(University of Waterloo, 2020-09-11)The demand for new and reliable welding processes comes from the need to improve productivity and quality in welding of new materials used in infrastructure projects. Among the areas where this development is crucial, is ... -
Development of a Novel Commercial-Scale Atmospheric Pressure Spatial Atomic Layer Deposition System
(University of Waterloo, 2020-09-09)Atmospheric pressure spatial atomic layer deposition (AP-SALD) is an advanced thin-film fabrication technique. It can produce high quality (uniform, conformal, pin-hole free), large-area ultrathin films at speeds up to ... -
Dynamic Analysis and Obstacle Avoidance of Autonomous Tractor Semi-Trailers
(University of Waterloo, 2020-09-03)This thesis fills the research gap of the tractor semi-trailer left turn problem at a city intersection. Although obstacle avoidance is a classic topic in the field of autonomous driving, however, most research is focused ... -
Application of Nonlinear Model Predictive Control to Holonomic Mobile Robots without Terminal Constraints or Costs
(University of Waterloo, 2020-09-01)The use of mobile robots greatly enhances the capability and versatility of industrial robots compared to their fixed counterpart. However, successfully deploying autonomous mobile robots is challenging and requires accurate ... -
A New Adiabatic Compressed Air Energy Storage System: Modeling, Design, Optimization, and Experiments
(University of Waterloo, 2020-09-01)Wind farms and solar farms often face challenges in delivering consistent power output during peak demand due to the inconsistency of wind and solar resources. An adiabatic compressed air energy storage (ACAES) system based ... -
Droplet Production of Biological non-Newtonian Fluids and Bioassay Applications in a Microfluidic Network
(University of Waterloo, 2020-08-31)Droplet-based microfluidics has been developed over the last two decades and presented as a promising platform for biochemical assay. This promise relies on the system’s ability to quantify the reagents accurately with ... -
Autonomous Driving at Intersections: A Critical-Turning-Point Approach for Planning and Decision Making
(University of Waterloo, 2020-08-28)Left-turning at unsignalized intersection is one of the most challenging tasks for urban automated driving, due to the various shapes of different intersections, and rapidly changing nature of the driving scenarios. Many ... -
On the Enhancement of the Localization of Autonomous Mobile Platforms
(University of Waterloo, 2020-08-27)The focus of many industrial and research entities on achieving full robotic autonomy increased in the past few years. In order to achieve full robotic autonomy, a fundamental problem is the localization, which is the ... -
Development of a Novel Capillary Based pH Gradient Elution Moving Boundary Electrophoresis Method and Electrolysis Free Device for Protein Separation and Concentration
(University of Waterloo, 2020-07-30)Proteins are the raw material input required for a number of biomedical purposes. In order to keep pace with the exponential demand for protein consumption from research institutions and biopharmaceutical companies, new ...