Browsing Mechanical and Mechatronics Engineering by Title
Now showing items 1241-1260 of 1494
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Residual Stresses In Circular Thin Plates Using Two Dimensional X-ray Diffraction And Finite Element Analysis
(University of Waterloo, 2013-05-23)There are many causes of structural failure. One of the most important factors leading to material failure is residual stress. This stress represents effects left in structures after processing or removal of external ... -
Residual-Based Isotropic and Anisotropic Mesh Adaptation for Computational Fluid Dynamics
(University of Waterloo, 2008-05-21)The accuracy of a fluid flow simulation depends not only on the numerical method used for discretizing the governing equations, but also on the distribution and topology of the mesh elements. Mesh adaptation is a technique ... -
Resilient Corner-Based Vehicle Velocity Estimation
(Institute of Electrical and Electronics Engineers, 2017-02-23)This paper presents longitudinal and lateral velocity estimators by considering the effect of the suspension compliance (SC) at each corner (tire) for ground vehicles. The estimators are developed to be resilient to sensor ... -
Resistance Spot Weld Fatigue Life Prediction Method Compatibility with Self-Piercing Rivets
(University of Waterloo, 2022-06-15)The Resistance Spot Weld (RSW) is traditional method for structural sheet metal joining with well established durability assessment techniques and methodologies. With increased prevalence of multi-material automotive ... -
Resistance Spot Welding and In-Process Heat Treatment of Hot Stamped Boron Steel
(University of Waterloo, 2016-03-15)Escalating environmental concerns have prompted efforts to reduce vehicle weight and carbon emissions, resulting in increased application of advanced high strength steels (AHSS). 22MnB5 hot stamping grade AHSS, namely ... -
Resistance Spot Welding of Al to Mg with Different Interlayers
(University of Waterloo, 2013-08-22)In order to meet the increasing fuel efficiency requirements, the automotive industry has strived for component weight reduction in order to improve the performance of automotive vehicles through the use of light Al and ... -
Resistive Switching Memory of TiO2 Nanowire Networks Grown on Ti Foil by a Single Hydrothermal Method
(Springer, 2017-04-01)The resistive switching characteristics of TiO2 nanowire networks directly grown on Ti foil by a single-step hydrothermal technique are discussed in this paper. The Ti foil serves as the supply of Ti atoms for growth of ... -
Resistor-Network Formulation of Multi-Temperature Free Convection Problems
(American Institute of Aeronautics and Astronautics, 2017-01-11)In recent work, the resistor-network formulation of forced-convection problems and a technique (dQdT) for evaluating the paired convective resistances that characterize the network were presented. This technique entails ... -
Resistor-Network Formulation of Multitemperature Forced-Convection Problems
(American Institute of Aeronautics and Astronautics, 2016-09-07)Many convection heat transfer problems involve more than two isothermal heat sources/sinks. A network of multiple convective resistors connecting temperature nodes representing the isothermal sources (walls, inlet flows, ... -
Resonant Adaptive Mirrors
(University of Waterloo, 2020-05-28)Deformable mirrors (DMs) are integrated into adaptive optical (AO) systems to compensate for wavefront aberrations. These aberrations degrade the image resolution of telescopes, microscopes, ophthalmoscopes, and optical ... -
A Review of physics-based and data-driven models for real-time control of polymer electrolyte membrane fuel cells
(Elsevier, 2021-12)The real-time model-based control of polymer electrolyte membrane (PEM) fuel cells requires a computationally efficient and sufficiently accurate model to predict the transient and long-term performance under various ... -
Riemann solvers with non-ideal thermodynamics: exact, approximate, and machine learning solutions
(University of Waterloo, 2022-09-22)The Riemann problem is an important topic in the numerical simulation of compressible flows, aiding the design and verification of numerical codes. A limitation of many of the existing studies is the perfect gas assumption. ... -
Robotic Reach, Grasp, and Pick-and-Place using Combined Reinforcement Learning and Traditional Controls
(University of Waterloo, 2022-09-01)Electrically actuated robotic arms have been implemented to complete tasks which are repetitive, strenuous, and/or dangerous since they were first developed in the 1970s. More than 50 years have passed since initial ... -
Robust and Adaptive Control Methods for Small Aerial Vehicles
(University of Waterloo, 2012-09-26)Recent advances in sensor and microcomputer technology and in control and aeroydynamics theories has made small unmanned aerial vehicles a reality. The small size, low cost and manoueverbility of these systems has positioned ... -
Robust Bayesian Detection and Tracking of Lane Boundary Markings for Autonomous Driving
(University of Waterloo, 2016-05-11)Lane detection is a fundamental and challenging task in autonomous driving and must be performed safely and robustly to avoid catastrophic failures. Current methods do not perform effectively in the challenging scenarios ... -
Robust Model for Fatigue Life Estimation from Monotonic Properties Data for Steels
(University of Waterloo, 2013-06-18)Determining the fatigue properties (Manson-Coffin and Ramberg-Osgood parameters) for a steel material requires time consuming and expensive testing. In the early stages of a design process, it is not feasible to perform ... -
The Role of Gold-Graphene Hybrid Nanostructure on Promoting Localized Surface Plasmonic Resonance Sensor Performance
(University of Waterloo, 2020-01-10)Localized surface plasmon resonance (LSPR) sensors have a wide range of applications, from medical diagnostics to environmental monitoring. In addition, the simplicity of the excitation method leads to simplicity in the ... -
Role of heat balance on the microstructure evolution of cold spray coated AZ31B with AA7075
(Elsevier, 2021-07)A promising solid-state coating mechanism based on the cold spray technique provides highly advantageous conditions on thermal-sensitive magnesium alloys. To study the effect of heat balance in cold spray coating on ... -
Role of loading direction on cyclic behaviour characteristics of AM30 extrusion and its fatigue damage modelling
(Elsevier, 2017-07-18)Anisotropic fatigue and cyclic behaviour of AM30 Mg alloy extrusion is investigated by performing fully-reversed strain-controlled tension-compression cyclic tests at strain amplitudes between 0.3% and 2.3%, along extrusion ... -
Role of Loading Direction on Fatigue Behavior of Smooth and Notched ZK60 Extrusion
(University of Waterloo, 2018-09-20)In spite of the increasing trend of magnesium (Mg) application over the last decade, numerous technical restrictions still limit Mg alloy’s extensive implementation in industry. For instance, many mechanical behaviors of ...