Browsing Mechanical and Mechatronics Engineering by Title
Now showing items 705-724 of 1493
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High Strain Rate Behaviour of Hot Formed Boron Steel with Tailored Properties
(University of Waterloo, 2013-01-21)In an automotive crash event, hot stamped, die quenched martensitic structural components have been shown to provide excellent intrusion resistance. These alloys exhibit only limited ductility, however, which may limit the ... -
High Strain Rate Characterization of Advanced High Strength Steels
(University of Waterloo, 2006)The current research has considered the characterization of the high strain rate constitutive response of three steels: a drawing quality steel (DDQ), a high strength low alloy steel (HSLA350), and a dual phase steel ... -
High Temperature DC SQUID Fabrication on Bicrystal YBCO Thin Films
(University of Waterloo, 2012-04-26)After the discovery of high temperature superconductors, different types of Josephson junctions were investigated and thus a new path is created to obtain high temperature superconducting quantum interface devices(SQUID). ... -
High Temperature Deformation Behaviour of an Al-Mg-Si-Cu Alloy and Its Relation to the Microstructural Characteristics
(University of Waterloo, 2009-04-24)The microstructural evolution and mechanical properties at elevated temperatures of a recently fabricated fine-grained AA6xxx aluminium sheet were evaluated and compared to the commercially fabricated sheet of the same ... -
High Temperature Forging of AZ31B Magnesium Alloy
(University of Waterloo, 2016-08-25)Isothermal uniaxial compression tests were conducted on AZ31B magnesium alloy with the intention of applying the findings to an industrial forging operation. Given the poor workability of magnesium at low temperatures, ... -
High-Speed Probe Card Analysis Using Real-time Machine Vision and Image Restoration Technique
(University of Waterloo, 2013-08-30)There has been an increase in demand for the wafer-level test techniques that evaluates the functionality and performance of the wafer chips before packaging them, since the trend of integrated circuits are getting more ... -
High-Temperature Oxidation, Fluoride-Ion Cleaning, and Activated Diffusion Brazing of Nickel-Based Superalloy GTD111
(University of Waterloo, 2011-04-28)The need for industrial gas turbines to operate at higher temperatures and/or speeds has resulted in the continual modification of nickel-based superalloys to provide better high-temperature strength and corrosion resistance ... -
Highly pressurized partially miscible liquid-liquid flow in a micro-T-junction. I. Experimental observations
(American Physical Society (APS), 2017-04-24)This is the first part of a two-part study on a partially miscible liquid-liquid flow (liquid carbon dioxide and deionized water) which is highly pressurized and confined in a microfluidic T-junction. Our main focuses are ... -
Highly pressurized partially miscible liquid-liquid flow in a micro-T-junction. II. Theoretical justifications and modeling
(American Physical Society (APS), 2017-04-24)This is the second part of a two-part study on a partially miscible liquid-liquid flow ( carbon dioxide and deionized water) that is highly pressurized and confined in a microfluidic T-junction. In the first part of this ... -
Holistic Vehicle Control Using Learning MPC
(University of Waterloo, 2023-09-26)In recent years, learning MPC schemes have been introduced to address these challenges of traditional MPC. They typically leverage different machine learning techniques to learn the system dynamics directly from data, ... -
Hot Forging Tool Design for a Magnesium Alloy Front Lower Control Arm
(University of Waterloo, 2018-10-22)In an effort to improve fuel economy standards in the automotive industry, the use of lightweight materials to manufacture fatigue-critical components is investigated by a large group at the University of Waterloo. Prior ... -
Hot Forming of Boron Steels with Tailored Mechanical Properties: Experiments and Numerical Simulations
(University of Waterloo, 2011-05-13)Hot forming of boron steels is becoming increasingly popular in the automotive industry due to the demands for weight reduction and increased safety requirements for new vehicles. Hot formed components offer a significant ... -
Hot Stamping of a Boron Steel Side Impact Beam with Tailored Flange Properties - Experiments and Numerical Simulations
(University of Waterloo, 2015-10-01)The effect of tailoring of hot stamped components is investigated, specifically the introduction of a tailored (locally softened) flange within an otherwise martensitic hot formed side impact beam. The effect of tailoring ... -
Humanoid Robotic Manipulation Benchmarking and Bimanual Manipulation Workspace Analysis
(University of Waterloo, 2022-09-07)The growing adoption of robots for new applications has led to the use of robots in human environments for human-like tasks, applications well-suited to humanoid robots as they are designed to move like a human and operate ... -
Humidification strategy for polymer electrolyte membrane fuel cells – A review
(Elsevier, 2018-11-15)Polymer electrolyte membrane fuel cells are promising power sources because of their advantage such as high efficiency, zero emission and low operating temperature. Water management is one of the critical issues for polymer ... -
Hybrid Controls Development and Optimization of a Fuel Cell Hybrid Powertrain
(University of Waterloo, 2012-10-25)The University of Waterloo Alternative Fuels Team’s participation in EcoCAR: The Next Challenge provided an unparalleled opportunity to execute advanced vehicle technology research with hands on learning and industry leading ... -
Hybrid Electric Mobility: Design Considerations for Energy Storage Systems and Fuel Economy Optimization of Shared Semi-Autonomous Vehicles
(University of Waterloo, 2019-08-23)Recent trends show that consumers are shifting away from individually owned personal vehicles, and towards shared mobility solutions. Those who do own a vehicle are opting for those that are more fuel efficient and ... -
Hybrid Electromagnetic Forming of Aluminum Alloy Sheet
(University of Waterloo, 2010-09-28)Electromagnetic (EM) forming is a high-speed forming process that uses the forces induced on a conductive workpiece by a transient high frequency current to form the workpiece into a desired shape. This thesis presents ... -
Hybrid Electromagnetic Vibration Isolation Systems
(University of Waterloo, 2017-11-15)Traditionally, dynamic systems are equipped with passive technologies like viscous shock absorbers and rubber vibration isolators to attenuate disturbances. Passive elements are cost effective, simple to manufacture, and ... -
A hybrid inverse dynamic-neural network approach to lower limb exoskeleton control
(University of Waterloo, 2022-08-22)A powered machine that is wearable over all or part of the human body can be referred to as a powered exoskeleton. The role of powered exoskeletons is usually to provide ergonomic structural support while using motor power ...