Browsing Mechanical and Mechatronics Engineering by Title
Now showing items 880-899 of 1497
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Leveraging Atmospheric-Pressure Spatial Atomic Layer Deposition and Machine Learning for Nanomaterial and Device Design
(University of Waterloo, 2023-07-27)The deposition and design of nanometre-scale oxide films is an integral component of the ongoing nanomaterial revolution, from cell phones, to batteries, to photovoltaics. Atmospheric-pressure spatial atomic layer deposition ... -
LIDAR Odometry with Joint Geometric and Appearance Landmarks
(University of Waterloo, 2019-04-08)Odometry is the problem of estimating the motion of a moving platform relative to its environment without measurements to a fixed reference point. This is a critical problem for mobile robotics applications where ... -
Liquid metal embrittlement cracking in dissimilar resistance spot welding of 3rd Gen – Advanced high strength steel: mitigation methods and associated mechanisms
(University of Waterloo, 2022-12-19)In response to the automotive industries demands for safer, lighter, and more environmentally friendly vehicles, the third generation of advanced high-strength steels (3G-AHSS) has been developed to have both high strength ... -
Liquid metal embrittlement in laser lap joining of TWIP and medium-manganese TRIP steel: The role of stress and grain boundaries
(Elsevier, 2018-11-01)High-Manganese austenite-containing steels with superior combination of strength and ductility have shown potential for enhancement of passenger safety and body-in-white (BIW) weight reduction. Even though Zn-coated ... -
Liquid Metal Embrittlement in Resistance Spot Welding: The Thermomechanical Origin and Embrittler Transport Mechanism
(University of Waterloo, 2021-08-05)To increase fuel economy, demand for lighter vehicles by way of thinner parts has risen in recent years. As parts become thinner the vehicle safety cannot be comprised, leading to the development of advanced high strength ... -
Load path sensitivity and fatigue life estimation of 30CrNiMo8HH
(Elsevier, 2012-04-01)A set of strain-controlled biaxial proportional and non-proportional tests were conducted on solid and tubular specimens of 30CrNiMo8HH steel. The effect of the phase angle on fatigue life was studied. This effect becomes ... -
Localized-Based Control Algorithm For Passenger Ride Comfort
(University of Waterloo, 2014-09-15)In this thesis, a new localized-based suspension control strategy is developed, simulated and validated with experimental results. Basic concepts of mathematical vehicle models, suspension systems, and conventional control ... -
Locally-Adaptive Tabulation of Low-Dimensional Manifolds using Bezier Patch Reconstruction
(2017-05-17)An efficient tabulation strategy for turbulent combustion simulations is proposed. Using a locally adaptive arrangement of structured Bezier patches–often used in computer graphics–the combustion manifold can be efficiently ... -
Longitudinal vehicle state estimation using nonlinear and parameter-varying observers
(Elsevier, 2017-05)A corner-based velocity estimation approach is proposed which is used for vehicle’s traction and stability control systems. This approach incorporates internal tire states within the vehicle kinematics and enables the ... -
Low Cost Thermal Imaging System for Welding Applications
(University of Waterloo, 2016-09-29)A significant component of welding research is devoted to studying the relationship between welding parameters and material properties. The fundamental link between process parameters and material properties is established ... -
Low Cost Wet Diaper Detector System
(University of Waterloo, 2021-08-12)The role of smart wet diaper detectors to health caregivers cannot be over-emphasized. Prolong wetness in patients and babies is one of the major causes of rashes especially when the wetness is not detected on time. ... -
Low Mobility Cable Robot with Application to Robotic Warehousing
(University of Waterloo, 2014-10-17)Cable-based robots consist of a rigid mobile platform connected via flexible links (cables, wires, tendons) to a surrounding static platform. The use of cables simplifies the mechanical structure and reduces the inertia, ... -
Low to High Strain Rate Characterization of DP600, TRIP780, AA5182-O
(University of Waterloo, 2015-03-18)Advanced High Strength Steels (AHSS) and aluminum alloys are currently of great interest in the automotive industry due to their superior strength-to-weight ratio and good formability. This research work presents the results ... -
Low-cycle fatigue characterization and texture induced ratcheting behaviour of forged AZ80 Mg alloys
(Elsevier, 2018-11-01)Stress-controlled uniaxial “push-pull” fatigue testing was conducted on as-received (cast and extruded) and closed-die cast-forged and extruded-forged AZ80 Mg alloy. The as-cast material possessed random texture and somewhat ... -
Low-Frequency Piezoelectric Energy Harvester with Novel 3D Folded Zigzag Design and High Power Density
(University of Waterloo, 2018-07-09)Cantilevers have been widely used for vibration energy harvesting applications using piezoelectric materials due to their simple geometries, frequency tune-ability, and closed form analytical solution. Recent studies have ... -
Machine Learning Approaches in Crystal Plasticity
(University of Waterloo, 2022-04-27)The continued advancements in material development and design require understanding the relationships between microstructure and flow behaviour. Crystal plasticity (CP) is a high-fidelity computational method that helps ... -
Machine Learning-based Detection of Compensatory Balance Responses and Environmental Fall Risks Using Wearable Sensors
(University of Waterloo, 2016-08-31)Falls are the leading cause of fatal and non-fatal injuries among seniors worldwide, with serious and costly consequences. Compensatory balance responses (CBRs) are reactions to recover stability following a loss of balance, ... -
Machining Chatter in Flank Milling and Investigation of Process Damping in Surface Generation
(University of Waterloo, 2011-12-06)Although a considerable amount of research exists on geometrical aspects of 5-axis flank milling, the dynamics of this efficient milling operation have not yet been given proper attention. In particular, investigating ... -
Machining Speed Gains in a 3-Axis CNC Lathe Mill
(University of Waterloo, 2010-08-04)The intent of this work is to improve the machining speed of an existing 3 axis CNC wood working lathe. This lathe is unique in that it is a modi ed manual lathe that is capable of machining complex sculptured surfaces. ... -
Magnesium for biomedical applications as degradable implants: thermomechanical processing and surface functionalization of a Mg-Ca alloy
(University of Waterloo, 2016-01-25)Degradable implants for bone fixation have been of significant interest since the last decade. Among different materials, magnesium appears as a promising candidate due to its unique combination of properties. Magnesium ...