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Articles 1 - 8 of 8
Full-Text Articles in Engineering
Mechanics Of Binder-Particle Interactions In Composite Battery Electrodes, Richard Johnson
Mechanics Of Binder-Particle Interactions In Composite Battery Electrodes, Richard Johnson
Theses
A study into the particle level mechanics of polymer binder and active material used in composite lithium-ion batteries (LIB) has been conducted. Silicon is highly sought after material that can be used as an active material in a composite anode. Its high theoretical capacity can result in batteries that can store more energy than current LIBs, but high volume expansion of Si during charge/discharge cycles leads to rapid capacity fade and poor cyclic life. Understanding the stress that is generated in the binder and the active material due to the volume expansion has not been fully understood. In this study …
Tomato Puree Convective Heat Transfer Simulation Using Boussinesq Approximation, Matteo Fabbri
Tomato Puree Convective Heat Transfer Simulation Using Boussinesq Approximation, Matteo Fabbri
Theses
With the advance of new technologies, the food industries are requiring systems that allow to produce the desired products with faster rates at cheaper costs. In this case, the study was initiated with the purpose to better understand what happens inside a package containing tomato puree when this is heated above 343 K in a tunnel pasteurizer. If the fluid must reach the thermal and microbiological condition of “pasteurization”, the system must guarantee that the temperature (around 343° Kelvin) is kept for a certain time allowing to pasteurize even the cooler package’s fluid-particle. The faster the system can heat the …
Mechanical Characterization And Fracture Behavior Of Magnesium Zk60a Alloy (Uns M16600), Mohamed Kamal I. H. Temraz
Mechanical Characterization And Fracture Behavior Of Magnesium Zk60a Alloy (Uns M16600), Mohamed Kamal I. H. Temraz
Theses
This research work focuses on studying the mechanical and fracture behavior of one of magnesium ZK60A (UNS M16600) extrusion. The material has many industrial applications and its characteristic should be measured for proper component or system design. Several tests were conducted following the standard procedures to determine the mechanical characteristics of the material. In addition, the fracture toughness of the material has been measured using the fracture toughness-thickness curve. A stress intensity factor K was used as a fracture parameter to determine the plane strain fracture toughness KIC of ZK60A magnesium alloy using a single edge notch bend (SENB) specimen …
Control Of Separated Flow Using A Dielectric Barrier Discharge Plasma Actuator, Mahdi Hasan
Control Of Separated Flow Using A Dielectric Barrier Discharge Plasma Actuator, Mahdi Hasan
Theses
Historically, Dielectric Barrier Discharge (DBD) plasma actuators have shown to be an effective method to control adverse pressure gradient induced boundary layer separation. In this study, a numerical investigation was carried out to explore the effects of a DBD plasma actuator on a three-dimensional incompressible, separated flow. The well-validated National Aeronautics and Space Administration (NASA) wall-mounted hump configuration studied in the simulations, were run at a Reynolds Number of 936,000, based on chord length, and a freestream Mach number of 0.1. The baseline code, CALC-LES, developed by the Chalmers University of Technology was modified to include the effects of the …
Effect Of Turbostratic Orientations And Confined Fluid On Mechanical Strength Of Bi-Layer Graphene: A Molecular Dynamics Study, Nil B. Dhankecha
Effect Of Turbostratic Orientations And Confined Fluid On Mechanical Strength Of Bi-Layer Graphene: A Molecular Dynamics Study, Nil B. Dhankecha
Theses
The rise of graphene as a reinforcement material in the last decade has been exponential owing to its superior mechanical properties. This one atom thick 2D material is applicable in many industries related to nanomechanical, nanoelectronics and optical devices. Despite its strength and superior properties, single-layer graphene tends to be unstable in a free-standing form. This led to active use of bi-layer and multilayered graphene in many of the above-stated applications. Though properties of single-layer graphene have been extensively investigated both computationally as well as experimentally for over a decade, bilayer graphene and its turbostratic form are still under research. …
Feedback Control For Leader Follower Architecture Of Unmanned Arial And Ground Vehicles, Mahmoud El Mahmoud
Feedback Control For Leader Follower Architecture Of Unmanned Arial And Ground Vehicles, Mahmoud El Mahmoud
Theses
This thesis presents development of a feedback controller for a cooperative mission using unmanned aerial vehicle and unmanned ground vehicle. This developed controller offers a solution to the time delayed collaborative autonomous systems for multiple robot systems. There are many motivating applications for these missions including exploration, search and rescue in damaged areas. The architecture developed in this thesis consists of an unmanned ground vehicle as a leader and an unmanned aerial vehicle as a follower. To be specific, the unmanned ground vehicle navigates through a damaged environment and leads the mission. The unmanned aerial vehicle follows the leader and …
Design And Fabrication Of A Remote-Controlled Plane For The Advanced Class Sae Aero Design Competition, Simon Esau
Design And Fabrication Of A Remote-Controlled Plane For The Advanced Class Sae Aero Design Competition, Simon Esau
Theses
The goal of the present research is to optimize the radio-controlled airplane design for the Society of Automotive Engineers International (SAE) Aero Design Advanced Class competition. The SAE Aero Design Advanced Class seeks to further research and development of an aeronautic system that can deliver cargo and passengers to form a colony on Mars. Mission success is achieved by attending to the rules, constraints, and requirements of the competition. System-level engineering is applied to meet these diverse requirements and create a robust final product. The radio-controlled airplane submitted for competition can theoretically be scaled to carry colonists, habitats, and supplies …
Mechanical Design Automation: A Case Study On Plastic Extrusion Die Tooling, Allen Prasad Varghese
Mechanical Design Automation: A Case Study On Plastic Extrusion Die Tooling, Allen Prasad Varghese
Theses
The Skills Gap in Mechanical Engineering (ME) Design has been widening with the increasing number of baby boomers retiring (Silver Tsunami) and the lack of a new generation to acquire, practice and perfect their knowledge base. This growing problem has been addressed with several initiatives focused on attracting and retaining young talent; however, these types of initiatives may not be timely for this new group to be trained by an established Subject Matter Expert (SME) group. Automated Engineering Design provides a potential pathway to address not only the Skills Gap but also the transfer of information from SMEs to a …