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Mechanical and Mechatronics Engineering: Recent submissions
Now showing items 401-420 of 1512
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On the Response of 7000-Series Alloys to Hot Stamping
(University of Waterloo, 2020-01-07)Hot stamping, or die quenching (DQ), of 7000-series aluminum alloys is a metal forming process in which a blank is heated (solutionized) and then quenched and formed in cold tooling. The formed part is then subjected ... -
Laser Powder Bed Fusion of AlSi10Mg for Fabrication of Fluid Power Components
(University of Waterloo, 2020-01-06)Laser powder bed fusion (LPBF) is an additive manufacturing (AM) process that produces 3D objects in a layer-by-layer fashion by using a laser to selectively melt powdered material. Some of the advantages of LPBF include ... -
Electroosmotic flow velocity in DNA modified nanochannels
(Elsevier, 2019-10-01)Electroosmotic flow (EOF) is systematically investigated in DNA grafted hard PDMS (h-PDMS) channels with size ranging from 50 nm to 2.5 μm by using the current-slope method. The effects of the DNA types, the incubation ... -
Nonlinear electrokinetic motion of electrically induced Janus droplets in microchannels
(Elsevier, 2019-03-07)The nonlinear electrokinetic motion of electrically induced Janus droplets (EIJDs) in a microchannel is studied in this paper. The EIJDs were fabricated by operating the positively charged aluminum oxide nanoparticles to ... -
A novel microfluidic resistive pulse sensor with multiple voltage input channels and a side sensing gate for particle and cell detection
(Elsevier, 2019-04-04)Traditionally, a resistive pulse sensor (also known as Coulter counter) works by letting a particle pass through a small orifice in an electrolyte solution. The detection sensitivity mainly relies on the volume ratio of ... -
Comparison of porcine brain mechanical properties to potential tissue simulant materials in quasi-static and sinusoidal compression
(Elsevier, 2019-07-19)In both finite element and physical surrogate models of head blast injury, accurate material properties of the brain and/or tissue simulants are necessary to ensure biofidelity in predicted response. Thus, there is a need ... -
Sphere on tile ballistic impact experiment to characterize the response of soda lime glass
(Elsevier, 2019-11)Robust computational models of soda-lime silicate glass (SLG) are used in the development of transparent armor systems, which require an independent set of experimental data with known boundary conditions for model validation. ... -
A comprehensive review of the key technologies for pure electric vehicles
(Elsevier, 2019-09-01)Nowadays, the emissions from conventional vehicles significantly contribute to increasingly serious environmental issues. In addition, the energy crisis and the low energy efficiency of conventional vehicles also offer a ... -
Rapid prediction of real-time thermal characteristics, solidification parameters and microstructure in laser directed energy deposition (powder-fed additive manufacturing)
(Elsevier, 2019-12)The localized thermal characteristics, solidification parameters and the corresponding microstructure depend highly on the process parameters in the laser powder-fed additive manufacturing (LPF-AM) process. However, ... -
Characterization of anisotropic behaviour of ZK60 extrusion under stress-control condition and notes on fatigue modeling
(Elsevier, 2019-10)The anisotropic fatigue behavior of ZK60 is investigated through stress-control tests along two different material directions: extrusion (ED) and radial (RD) directions. The in-plane random texture along RD promotes ... -
Visual-Inertial Odometry for 3D Pose Estimation and Scene Reconstruction using Unmanned Aerial Vehicles
(University of Waterloo, 2019-12-20)As Unmanned Aerial Vehicles (UAVs) become increasingly available, pose estimation remains critical for navigation. Pose estimation is also useful for scene reconstruction in certain surveillance applications, such as ... -
Making CNC Machines Smarter
(University of Waterloo, 2019-12-16)CNC machines are a commonly used manufacturing tool. Over the years, they have become increasingly sophisticated. While there is a lot of research into making the machines more sophisticated, there is little research into ... -
Coupled Topology Optimization and Process Simulation System for Laser Powder-bed Fusion Additive Manufacturing
(University of Waterloo, 2019-12-11)Additive Manufacturing (AM), widely known as 3D printing, is a transformative method to industrial manufacturing, helping in creating lighter, stronger, smarter parts and systems. As one of the most important and commercially ... -
Strategic design of flow structures for single (bio) particle analysis using droplet microfluidic platform
(University of Waterloo, 2019-12-10)This thesis is designed to meet the need for knowledge of droplet-based encapsulation strategies by carrying out systematic fundamental studies based on a double-cross configuration. This configuration has been commonly ... -
Design and Evaluation of Grasp Assistive Devices in an Industrial Environment
(University of Waterloo, 2019-12-06)Carpal tunnel syndrome and tendonitis are two common upper extremity cumulative trauma disorders related to repetitive and forceful activities in the workplace. The objective of this research was to reduce the hand force ... -
Design and Implementation of Google Cloud Framework for Monitoring Water Distribution Networks
(University of Waterloo, 2019-12-06)With urbanization and growing human population, water demand is constantly on the rise. Due to limited water resources, providing access to fresh potable water to the rising needs is challenging. Water distribution systems ... -
The semiconductor properties of passive films and corrosion behavior of stainless steel reinforcing bars in simulated concrete pore solution
(Elsevier, 2019-06)The vulnerability of concrete reinforcing steels to corrosion when depassivation occurs, typically in the presence of chloride, makes it important to understand the nature of the steels’ passive films. In Part I of the ... -
Large Eddy Simulation of Partially Premixed Flames using Doubly Conditional Source-term Estimation
(University of Waterloo, 2019-11-28)Doubly Conditional Source-term Estimation (DCSE) is a partially premixed formulated closure to model turbulent combustion. The conditioning variables are selected to be mixture fraction and progress variable to represent ... -
Evaporation of Liquid Wall Film in Direct Injection Spark Ignition Engine-like Conditions
(University of Waterloo, 2019-10-30)The liquid wall film formed by the spray impingement in Direct Injection Spark Ignition (DISI) engines can directly produce a large amount of Particle Matter (PM) emissions. The PM emissions can be tremendously reduced if ... -
Coupled Dynamics of Cable-Harnessed Structures: Experimental Validation
(American Society of Mechanical Engineers, 2019-07-15)The experimental study and model validations for the coupled dynamics of a cable-harnessed beam structure are presented. The system under consideration consists of multiple pretensioned cables attached along the length of ...