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Mechanical and Mechatronics Engineering: Recent submissions
Now showing items 541-560 of 1512
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SIVO: Semantically Informed Visual Odometry and Mapping
(University of Waterloo, 2018-11-12)Accurate localization is a requirement for any autonomous mobile robot. In recent years, cameras have proven to be a reliable, cheap, and effective sensor to achieve this goal. Visual simultaneous localization and mapping ... -
Modelling and Model Predictive Control of Power-Split Hybrid Powertrains for Self-Driving Vehicles
(University of Waterloo, 2018-11-05)Designing an autonomous vehicle system architecture requires extensive vehicle simulation prior to its implementation on a vehicle. Simulation provides a controlled environment to test the robustness of an autonomous ... -
Solid-Particles Deposition Through a Turbulent Impinging Jet Using Lattice Boltzmann Method
(University of Waterloo, 2018-10-30)Solid particle distribution on an impingement surface has been simulated utilizing a graphical processing unit (GPU). An in-house computational fluid dynamics (CFD) code has been developed to investigate a 3D turbulent ... -
Characterization and Modeling of Smooth and Notched Rolled ZEK100-O under Cyclic Load
(University of Waterloo, 2018-10-26)As an effective way to reduce greenhouse gas emissions, goals on weight reduction has been fully focused by automotive manufacturers to meet the environmental regulations. Magnesium (Mg) alloys, with its high specific ... -
Catalytic isomerization of glucose to fructose using heterogeneous solid Base catalysts in a continuous-flow tubular reactor: Catalyst screening study
(Elsevier, 2019-01-01)Isomerization reactions of glucose into fructose in aqueous media were studied in a continuous-flow tubular reactor using different heterogeneous solid base catalysts, including calcined-rehydrated hydrotalcite, magnesium ... -
Enhanced photocatalytic oxidation of SO2 on TiO2 surface by Na2CO3 modification
(Elsevier, 2018-10-15)The effects of Na2CO3 on the photocatalytic oxidation (PCO) of SO2 with UV irradiated TiO2 (P25) were studied using a fixed bed reactor. Na2CO3 was loaded onto P25 using a wet coating method. The PCO efficiency for SO2 ... -
Importance of asymmetry and anisotropy in predicting cortical bone response and fracture using human body model femur in three-point bending and axial rotation
(Elsevier, 2018-11-01)Modeling of cortical bone response and failure is critical for the prediction of Crash Induced Injuries (CII) using advanced finite element (FE) Human Body Models (HBM). Although cortical bone is anisotropic and asymmetric ... -
A wet process for oxidation-absorption of nitric oxide by persulfate/calcium peroxide
(Elsevier, 2018-10-15)This study develops and evaluates a novel wet method for NO removal using a Na2S2O8/CaO2 solution. The effects of these two components both and alone in solution, Na2S2O8 concentration, CaO2 concentration, initial pH, ... -
Characterization and modelling of quasi-static and fatigue notch effect in AZ31B-H24 rolled sheet
(University of Waterloo, 2018-10-25)The transportation sector releases large amounts of harmful greenhouse gases into Earth’s atmosphere. Vehicle weight reduction through the use of magnesium alloys is an effective way to reduce carbon dioxide emission and ... -
Effect of quality control parameter variations on the fatigue performance of aluminum friction stir welded joints
(Elsevier, 2019-01-01)This paper describes fatigue tests performed on 6061-T651 and 5083-H321 aluminum friction stir welded joints with dimensions and loading conditions typical for structural applications. Butt and lap joint details with various ... -
Combined particle image velocimetry/digital image correlation for load estimation
(Elsevier, 2019-01-01)Particle image velocimetry (PIV) and digital image correlation (DIC) are widely used experimental techniques in fluid mechanics and structural dynamics, respectively. PIV is capable of resolving detailed velocity fields ... -
Polyamide 6.6 separates oil/water due to its dual underwater oleophobicity/underoil hydrophobicity: Role of 2D and 3D porous structures
(Elsevier, 2019-02-01)Porous polyamide functionalized by plasma or various coatings has been investigated for oil/water separation. In literature, polyamide has rarely been studied for oil removal, and this work investigated the performance of ... -
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 ... -
Comparison of Experimental Methods in the Measurement of Wind Turbine Wakes
(University of Waterloo, 2018-10-22)With the increasing development of wind energy, it has become essential to study the interactions of turbines within wind farms. Wind turbines create wakes when harnessing the energy in the wind for electricity. Reduced ... -
The Influence of Timing on the Hemodynamic Effects of Compression Devices and Development of Sensor Driven Timing Mechanisms
(University of Waterloo, 2018-10-19)Long periods of reduced mobility are associated with formation of blood clots in the deep veins of the legs, referred to as deep vein thrombosis (DVT). DVT has been noted as a large factor of morbidity and mortality in ... -
Nonlinear and Geometric Controllers for Rigid Body Vehicles
(University of Waterloo, 2018-10-18)In this thesis we investigate the motion control problem for a class of vehicles C V , which includes satellites, quadrotors, underwater vehicles, and tailsitters. Given a globally represented model of C V , and a curve, ... -
Mechatronic design, actuator optimization, and control of a long stroke linear nano-positioner
(Elsevier, 2018-04-01)In this paper, mechatronic design, actuator optimization and controls of a long-stroke (20 mm) linear nano-positioner are presented. The mechatronic design is described in terms of the stage's most prominent features ... -
A flexible tube-based triboelectric-electromagnetic sensor for knee rehabilitation assessment
(Elsevier, 2018-08-01)This paper reports a novel hybridized flexible electromagnetic-triboelectric generator for vibration/deflection monitoring as it is implemented in a cantilever or clamped-clamped configuration. The proposed self-powered ... -
Target capture and station keeping of fixed speed vehicles without self-location information
(Elsevier, 2018-09-01)Target capture and station keeping problems for an autonomous vehicle agent have been studied in the literature for the cases where the position of the agent can be measured. Station keeping refers to moving the agent to ... -
A flexible hybridized electromagnetic-triboelectric multi-purpose self-powered sensor
(Elsevier, 2018-03-01)This paper presents a novel hybridized flexible electromagnetic-triboelectric generator that consists of a round/square shaped coil and magnet, and also, highly flexible, mechanically and thermally durable, and cost-effective ...