Designing And Building An Automatic Chamfer Grinder, 2016 Western Kentucky University
Designing And Building An Automatic Chamfer Grinder, William Johnson
Honors College Capstone Experience/Thesis Projects
Modern day manufacturing is a demanding environment with a constant need for process improvement. As automation becomes more advanced, there are fewer jobs that must be completed by a human. In the case of Stupp Bridge Company, a local manufacturer of steel bridge girders, their workforce is highly skilled, so replacing mundane tasks with automation allow the skilled workers to focus on the difficult jobs. One such task is grinding a chamfer onto every leading edge of each girder flange, eight edges in total, ranging from 20 to 200 feet long. The purpose of this project was to design an ...
Computational Fluid Dynamic Analysis Of Microbubble Drag Reduction Systems At High Reynolds Number, 2016 Florida International University
Computational Fluid Dynamic Analysis Of Microbubble Drag Reduction Systems At High Reynolds Number, John D. Goolcharan
FIU Electronic Theses and Dissertations
Microbubble drag reduction (MBDR) is an effective method to improve the efficiency of fluid systems. MBDR is a field that has been extensively studied in the past, and experimental values of up to 80% to 90% drag reduction have been obtained. The effectiveness and simplicity of MBDR makes it a viable method for real world applications, particularly in naval applications where it can reduce the drag between the surface of ships and the surrounding water. A two dimensional single phase model was created in ANSYS Fluent to effectively model the behavior of bubble laden flow over a flat plate. This ...
The Effect Of Mesh-Type Bubble Breakers On Two-Phase Vertical Co-Flow, 2016 The University of Western Ontario
The Effect Of Mesh-Type Bubble Breakers On Two-Phase Vertical Co-Flow, Alan Kalbfleisch
Electronic Thesis and Dissertation Repository
It is proposed that mesh-type bubble breakers can be used in two-phase gas-liquid vertical cocurrent pipe flow to enhance the heat and mass transfer rates. Two experimental studies were performed to investigate the effect of mesh-type bubble breakers with varying geometries on two-phase flow behaviour. The first used highspeed imaging to measure bubble size and observe the resulting flow regime for two-phase vertical co-flow consisting of air and water. A Froude number correlation that can be used to predict the bubble size generated by mesh-type bubble breakers is proposed. Flow regime maps for two-phase flow in the presence of bubble ...
Portable Sensory Room For The West Orange County Consortium For Special Education, 2016 California Polytechnic State University, San Luis Obispo
Portable Sensory Room For The West Orange County Consortium For Special Education, Lindsey Chase, Emma Eskildsen, Alex Fox, Claire Francis, Nate Hoffman, Kaylee Keck, Sarah Sullivan
Biomedical Eng/General Eng.
This report discusses the development of a Portable Sensory Room to be used at Newland Elementary School in Huntington Beach. Newland Elementary has an exceptional Special Needs program that teaches the children with the most severe cases of autism in its school district. People with autism typically also have sensory processing disorders, which can be extremely disruptive for a child’s development and can make it difficult for a child to be able to concentrate long enough to gain necessary life skills. The idea behind a Sensory Rooms is to create a place to calm the students and to expose ...
Inclusive Lectern, 2016 California Polytechnic State University, San Luis Obispo
Inclusive Lectern, Trent Canales, Sean Day, Dylan Sigley, Stephen Sippel
A lectern is an essential piece of equipment for almost all speeches and presentations. They come in many forms and range in degree of professionalism depending on the occasion. Lecterns not only hold a presenter’s notes, a microphone, or other presentation aids, they provide a structure for a presenter that can bolster their confidence during a presentation. As such, it is important that all presenters have a lectern available to them. Unfortunately this is not always the case due to lectern accessibility limitations. This problem inspired the Cal Poly Disability Resource Center to request a lectern that satisfies the ...
Efficiency Testing Of An Electronic Speed Controller, 2016 California Polytechnic State University, San Luis Obispo
Efficiency Testing Of An Electronic Speed Controller, Grace Cowell, Matthew Hudson, Marcus Pereira
This project required the development of a rig that could experimentally determine the efficiency of an Electronic Speed Controller (ESC). The selected design focuses on measuring the losses due to heat from the device and comparing this to its input power. The selected design is a flow rig that utilizes the heat equation q=ṁcpΔT. The rig provides a steady state measurement of the ESC heat output by passing a known mass flow rate of air across the ESC and measuring the temperature difference. It uses a flowmeter to determine ṁ, thermocouples to determine ΔT, and a table lookup to ...
Compliant Air Skates, An Experiment, 2016 California Polytechnic State University, San Luis Obispo
Compliant Air Skates, An Experiment, Samuel Feldtkeller, Cody Anderson, Kevin Daily, Eliana Stefani
There is currently a gap in the market of train levitation systems: wheeled trains and MagLev trains exist, but none utilize the low friction and high efficiency aspect of trains levitated by air skates. An air skate, is an air bearing that uses a pressure difference along its annular body to create a thin flow of air which is strong enough to "levitate" the weight of the skate. We have designed a compliant air skate that can glide over 0.04[in] defects in surfaces without touching down. After having made compliant skirts out of fiberglass and silicone, our setup ...
Walker Tray, 2016 California Polytechnic State University, San Luis Obispo
Walker Tray, Marlene Troncoso, Judy Lantaca, Miriam Krage, Claire Francis
Sean is an individual with Cerebral Palsy, a disability that affects one's balance, muscle tone, muscular coordination, posture and control. Sean utilizes a walker to aid in maintaining his balance and muscular coordination when ambulating. This enables him to walk independently and leads to improved muscle strength and coordination. When walking, Sean places both hands on the walker to maintain balance and thus the ability to walk and carry items at the same time is compromised. Sean would like to be able to transport items while in use of his walker. The goals of this senior project design are ...
Experimental Building Demonstration Model With Viscous Fluid Dampers, 2016 California Polytechnic State University, San Luis Obispo
Experimental Building Demonstration Model With Viscous Fluid Dampers, Blake Thomas Reeve, Brianna Jean Kufa, Aden Malek Stepanians, Sophie Carmion Ratkovich
The Architectural Engineering major places a heavy emphasis on structural dynamics and the role of wind and seismic loading in building analysis and design. Buildings of high importance that are critical to community function, such as hospitals, often utilize supplemental damping devices like supplemental viscous fluid dampers or base isolators to reduce the overall demands on the structural system. The design and analysis of these dampers are typically not taught at the undergraduate level, and is frequently performed by mechanical engineers, in lieu of structural engineers.
To better understand and research building behavior with supplemental damping devices, our multi-disciplinary team ...
A Numerical Study Of Compressible Lid Driven Cavity Flow With A Moving Boundary, 2016 UNIVERSITY OF NEW ORLEANS
A Numerical Study Of Compressible Lid Driven Cavity Flow With A Moving Boundary, Amer Hussain
University of New Orleans Theses and Dissertations
A two-dimensional (2-D), mathematical model is adopted to investigate the development of circulation patterns for compressible, laminar, and shear driven flow inside a rectangular cavity. The bottom of the cavity is free to move at a specified speed and the aspect ratio of the cavity is changed from 1.0 to 1.5. The vertical sides and the bottom of the cavity are assumed insulated. The cavity is filled with a compressible fluid with Prandtl number, Pr =1. The governing equations are solved numerically using the commercial Computational Fluid Dynamics (CFD) package ANSYS FLUENT 2015 and compared with the results ...
Design And Implementation Of A Controller For A Beaglebone Quadcopter, 2016 Rose-Hulman Institute of Technology
Design And Implementation Of A Controller For A Beaglebone Quadcopter, Peter Olejnik
Graduate Theses - Mechanical Engineering
Unmanned aerial vehicles are quickly becoming a significant and permanent feature in today's world of aviation. Amongst the various types of UAVs, a popular type is the quadcopter. Also referred to as a quadrotor, this rotor craft's defining feature is that it has four propellers. While its use is common in the hobbyist community, this aircraft's use within industry is blooming.
Presented are the efforts to design and implement a controller for a BeagleBone based quadcopter. As part of this effort, characteristics of the quadcopter were experimentally determined. These characteristics consist of physical properties of the quadcopter ...
Jet Flow Validation Of Positron Emission Particle Tracking Utilizing High Speed Video, 2016 University of Tennessee - Knoxville
Jet Flow Validation Of Positron Emission Particle Tracking Utilizing High Speed Video, Seth Thomas Langford
Positron Emission Particle Tracking (PEPT) generates 4D Lagrangian particle trajectories and is used to evaluate flow in granular media and complex geometries where optical interrogation methods are not possible. A Multi-Particle PEPT (Multi-PEPT) approach was developed by the University of Tennessee Thermal Fluids Group capable of finding and tracking many particles simultaneously to extend the utility of the PEPT method. This thesis compares 4,014 trajectories generated using the Multi-PEPT method with 3,055 trajectories generated from High Speed Video (HSV) data. All trajectories are acquired in an acrylic test section with water flow using resin beads. The flow geometry ...
Ascanius Project: Mech 401/402 Senior Capstone Experience, 2016 Loyola Marymount University
Ascanius Project: Mech 401/402 Senior Capstone Experience, Ray H. Colquhoun, Joshua Solberg, Martin Tangari, Emanuel Di Stasio
This report describes the analysis, design, and test, and launch of a high power reusable rocket. The design goals were to reach a target altitude of 3000’, deploy a payload module containing an egg that can be safely recovered, and record flight video. The rocket was 62.13 in long fully assembled, had a dry mass of 2.764 kg (3.077 kg wet), and was propelled using an I-class solid fuel rocket motor (Cesaroni I-216-CL). The nose cone and tail cone were fabricated by the team from carbon fiber reinforced polymer (CFRP) via wet layup and vacuum bagging. The ...
Numerical Investigation Of Full Scale Thunderstorm Downbursts: A Parametric Study And Comparison To Meteorological Model, 2016 The University of Western Ontario
Numerical Investigation Of Full Scale Thunderstorm Downbursts: A Parametric Study And Comparison To Meteorological Model, Christopher Oreskovic
Electronic Thesis and Dissertation Repository
A series of Large Eddy Simulations using an atmospheric meteorological cloud model have been used to investigate the important geometric and thermal parameters that influence a thunderstorm downburst outflow, as it pertains specifically to the idealized cooling source model. A separate set of Large Eddy Simulations make use of the same idealized cooling source model, in a realistic atmospheric base state using real field sounding data, in an attempt to make a quantifiable comparison to a downburst from a full cloud simulation. Randomness has been added to the cooling source forcing function to mimic the thermal variation in a real ...
The Role Of Rice Leaf Surface Properties In The Appressorium Formation Of Magnaporthe Oryzae, 2016 University of Nebraska - Lincoln
The Role Of Rice Leaf Surface Properties In The Appressorium Formation Of Magnaporthe Oryzae, Nicholas A. Bohlim, Sangjin Ryu, Donghee Lee
UCARE Research Products
The organism Magnaporthe oryzae is one of the leading causes of rice blast fungus, a disease that greatly affects rice crop yields. Given that rice supplies around twenty percent of the world’s total calories consumed, it is important to investigate factors that affect its harmful progression.
The goal of this study is to determine the effects of surface properties in the attachment of M. oryzae to the rice leaf, and how these properties affect appressorium formation. Properties investigated include stiffness, thickness, surface roughness, and wettability. For repeatability, a silicone-based elastomer with which these variables could be controlled was fabricated ...
Application Of Natural Convection For Photovoltaic Cooling And Photocatalytic Disinfection, 2016 The University of Western Ontario
Application Of Natural Convection For Photovoltaic Cooling And Photocatalytic Disinfection, Usman J. Rajput
Electronic Thesis and Dissertation Repository
Two investigations for improving renewable technologies are engaged. First is the examination of the enhancement of heat transfer at the rear of a hot photovoltaic panel by natural convection using various configurations and the other is analyzing a new photocatalytic collector for water heating and cleaning. A 20 Watt polycrystalline panel is exposed to indoor simulated solar light, under constant ambient temperature and stagnant wind conditions. Three configurations are considered: a partial heat sink, a water cavity and a water channel. The experimentally obtained convective heat transfer coefficients are 4.4 W•m-2•K-1 at the rear of ...
4-H Nfpa Fluid Power Challenge, 2016 Purdue University
4-H Nfpa Fluid Power Challenge, Erika D. Bonnett
Engagement and Service-Learning Summit
The 4-H NFPA Fluid Power Challenge partnered Purdue Polytechnic Institute and Indiana 4-H with the National Fluid Power Association and Center for Compact and Efficient Fluid Power to provide teams of Indiana youth in 6-8th grades with opportunity to learn about hydraulics, engineering design, and other STEM skills. This created an opportunity to give youth a learning experience with STEM through hands-on, experiential learning activities. Youth experienced a one day workshop in which they worked as teams to learn concepts of fluid power through hands-on learning. Teams then went back to their communities and created and designed a fluid power ...
Implementation Of A Large Solar Collector For Solar Light Energy, 2016 Selected Works
Implementation Of A Large Solar Collector For Solar Light Energy, Skye Leake, Thomas Mcguire, Michael Hirsch, Michael Parsons, Jeremy Straub, Scott Kerlin
Origami Style Solar Panels With Development Of Dual Purpose Integrated Phased Array Communications System, Alexander Holland, Wilson Lysford, Jens Pearson, Jeremy Straub, Scott Kerlin
In-Space 3d Printing Scientific Remote Sensing Missions, 2016 Selected Works