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Mechanical and Mechatronics Engineering: Recent submissions
Now showing items 281-300 of 1512
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Experimental and Numerical Assessment of Adhesively Bonded Non-Crimp Fabric Carbon Fiber/Epoxy Composite Joints
(University of Waterloo, 2021-05-03)To achieve a reduction in the contribution of greenhouse gas emissions from the transportation sector, automotive manufacturers have shifted towards utilization of advanced lightweight materials for vehicle structures, ... -
Efficient Multi-Objective Optimization of an Automotive Crush Rail Under Axial and Oblique Impact
(University of Waterloo, 2021-04-30)Oblique impact conditions are of increasing research importance, and this kind of study is becoming more common in the crashworthiness literature. Optimization strategies, such as the Response Surface Methodology (RSM), ... -
Characterization and Modelling of Additively Manufactured Hastelloy X Parts under Quasi-Static and Cyclic Loading
(University of Waterloo, 2021-04-28)Laser powder-bed fusion (LPBF) is one of the main additive manufacturing (AM) methods, which has been proven to produce complex metallic parts with fine features. Understanding the correlation of process parameters to the ... -
Development of Waterloo Robotic Rollator (WATRR)
(University of Waterloo, 2021-04-28)One of the major risk factors for impaired mobility is aging, and with the aging population on the rise, the demand for assistive technologies for individuals with mobility impairment is at an all time high. Impaired ... -
Characterizing and Modeling the Effects of Mode Mixity and Bond Line Thickness on the Traction-Separation Response of Structural Adhesive Joints
(University of Waterloo, 2021-04-28)As adhesive bonding continues to become more prevalent in automotive structures, the need for high fidelity characterization and modelling of adhesive joints has gained in importance. In this thesis, new specimen geometry ... -
Effect of microstructure in electrospark deposition repaired conventional and additive manufactured Ni-superalloys
(University of Waterloo, 2021-04-23)The ability to extend component lifespans and improve performance through repair and coating techniques is an important area of research with widespread industrial applications. Numerous industries, including aerospace, ... -
Constitutive and Fracture Characterization and Modelling of Monolithic and Tailor-Welded Blanks of Press-Hardening Steels
(University of Waterloo, 2021-04-21)This study investigates the constitutive (flow) and fracture response of two automotive-grade press-hardening steels, Usibor® 1500-AS and Ductibor® 500-AS, as well as their tailor-welded blanks (TWBs), for a range of ... -
Electromigration in solder joints: Towards better understanding using real-time visuals
(University of Waterloo, 2021-04-19)With the increasing demands and consequent miniaturization of electronic devices, electromigration is posing a challenge to the reliability not only of integrated circuits but also of the electronic packages. A methodology ... -
Microstructural Development and Weldability Optimization in the Resistance Spot Welding of Quenched and Partitioned Steels
(University of Waterloo, 2021-04-16)Advanced high-strength steels (AHSS) have been widely used in the automotive industry to meet the demand for reduced fuel consumption and environmental emissions. Quenching and Partitioning (Q&P) is a heat-treatment method ... -
Integrated Stability and Tracking Control System for Autonomous Vehicle-Trailer Systems
(University of Waterloo, 2021-04-13)The addition of a trailer to a vehicle significantly changes the dynamics of a single-vehicle and generates new instability modes including jackknifing and snaking. Understanding of the dynamics of these modes leads to the ... -
Development of the integration of microwave technology with microfluidic systems for sensing and heating
(University of Waterloo, 2021-03-19)Microfluidics-based Lab-on-a-Chip platforms have drawn ever-increasing attention from both academy and industry due to their advantages for dealing with small volume of fluids and for integrating multiple processes into ... -
Vehicle Dynamic and Control of Constrained Multi-Actuation Systems at the Limits of Handling
(University of Waterloo, 2021-03-17)With recent advances in electric vehicles, having electric motors directly driving the wheels is gaining attraction. When a vehicle is equipped with four independent electric hub motors or independently controlled brakes ... -
Design a Reliable Model Predictive Control for Path Following with Application to the Autonomous Vehicle and Considering Different Vehicle Models
(University of Waterloo, 2021-03-12)Despite many advances that aim to bring autonomous cars to market, several challenges remain to overcome before such technology is widely adopted. Among these is the need for a reliable cornering control that can work ... -
Multi-Actuated Vehicle Control and Path Planning/Tracking at Handling Limits
(University of Waterloo, 2021-03-10)The increasing requirements for vehicle safety along with the impressive progress in vehicle actuation technologies have motivated manufacturers to equip vehicles with multiple control actuations that enhance handling and ... -
State and Parameter Estimation of Vehicle-Trailer Systems
(University of Waterloo, 2021-03-05)Vehicle-trailer systems have different unstable modes that should be considered in their stability control, including trailer snaking, jack-knifing, and roll-over. In general, vehicle control systems require vehicle ... -
Wetting, adhesion and droplet impact on face masks
(ACS, 2021-02-12)In the present pandemic time, face masks are found to be the most effective strategy against the spread of the virus within the community. As aerosol-based spreading of the virus is considered as the primary mode of ... -
Interaction of water droplets residing on a solid surface with wall-bounded shear flows
(University of Waterloo, 2021-02-22)Droplet depinning under wind-forcing arises in a wide range of engineering scenarios. Better understanding of this phenomenon not only can optimize the design of relevant engineering systems, but also can help preventing ... -
Measuring Smoke Evolution at Full-Scale with Video Recordings
(University of Waterloo, 2021-02-22)Many knowledge gaps exist in our current understanding of fire and smoke dynamics — caused in large part by a lack of data on smoke evolution in fires. Advances in computer technology, however, now make it possible for ... -
Integrated Task and Motion Planning of Multi-Robot Manipulators in Industrial and Service Automation
(University of Waterloo, 2021-02-01)Efficient coordination of several robot arms in order to carry out some given independent/cooperative tasks in a common workspace, avoiding collisions, is an appealing research problem that has been studied in different ... -
Novel Tornado-Like Vortex Generator with Intelligent Controller
(University of Waterloo, 2021-01-29)Cooking fumes may cause multiple adverse health effects, and range hoods play central roles in controlling indoor air pollution caused by cooking fumes. However, the traditional design of the range hoods has a low efficiency ...