Computer-Aided Engineering and Design Commons^™

Drone Payload Storage & Release System (Dpsrs), Joseph E. Key

All Undergraduate Projects

The retail giant Amazon has become a household name synonymous with nearly instantaneous online shopping. What previously took weeks to deliver at exorbitant shipping fees can now arrive at your doorstep within two days—and all for free. This huge buyer incentive has skyrocketed the demand for online shopping, making Amazon the most valuable brand in the world. To meet this demand, Amazon and its distributors have proposed using drones to make deliveries. However, due to issues with cost and complexity, this has not yet materialized. As such, this project’s objective was to create a cheap and lightweight package-delivery system that …

R/C Mini Baja Car: Drive Train And Steering, Carlton R. Mcdonald

All Undergraduate Projects

The purpose of the Baja R/C Car is to compete in the ASME eFX competition in a series of events to prove the functionality of the vehicle. This series of events includes the Slalom, Drag, and Baja race, The Slalom is a test in the steering capability of the vehicle, the Drag is a test in the acceleration of the vehicle in a straight line, and the Baja puts all factors together in a race to test every component of the vehicle. This project is about building an R/C car that not only functions, but also has maximum performance capabilities …

Mechanical Footstep Power Generator, Mohammed Saleh Aljohani, Faisal Alonazi

All Undergraduate Projects

Mechanical Footstep Power generator

By Author: Mohammed Aljohani

Abstract

Modern technology is focusing on newer and better sources of energy. Among the important areas are power generation methods since electricity has become part of our lives. Various researchers have conducted surveys to find out the feasibility of converting renewable kinetic energy into electricity. Some of the works done in the past emphasized the selection of suitable materials and power generation systems designs that appear complicated and expensive. To ensure there is cost efficiency and energy efficiency better power generation systems need to be embraced.

The footstep power generator is a …

Design Of Banner Tow Mechanism For Bush Plane, Kyle Ciarrone, Ivan Martin, Rishabh Gadi, Tyler Brandt

Williams Honors College, Honors Research Projects

The 2019-2020 AIAA DBF objective was to design, build, and test a banner-towing bush plane that carries wooden passengers and luggage. Senior members on the team undertook the creation of the banner tow mechanism subsystem as their senior design project on behalf of the design team due to the challenge of its mechanical design and the aerodynamic considerations regarding its placement and enclosure aboard the aircraft. The competition as well as access to campus resources were canceled due to COVID-19, so full testing and integration of the mechanism was not achieved. However, the engineering design process was experienced from the …

Indoor Navigation For Visually Impaired Person Using Inertial And Geomagnetic Information, Jayanth Ammanabrolu

All Graduate Theses, Dissertations, and Other Capstone Projects

Motivated by the need for assistance of indoor guidance for visually impaired persons (VIPs), a sensing system using inertial and geo-magnetic information has been developed to navigate a VIP person indoor. Orientation estimation, which is critical for indoor localization, is conducted using the information of the angular velocity, acceleration and geomagnetic field. By analyzing the characters of human gait, a method to eliminate the accumulated drift introduced by double integrations is introduced. By attaching the inertial sensor to the foot, the periodic stationary state will facilitate the drift correction. Also, the distinctive distortion of the geomagnetic field, which contains spatial …

Generation Of Premix Laminar Flame Speed Library, Sai Prashanth Kumar

Dissertations, Master's Theses and Master's Reports

The Laminar flame speed is an essential parameter in measuring turbulent premixed combustion applied in Spark ignition engines. Instead of using power-law correlations, which is valid only for particular ranges, the procedure for generating a premixed laminar flame speed library is defined using MTU – Master mechanism for a wide range of charge mixture conditions inside an engine combustion chamber: Temperature (300 – 700 K), Pressure (1 – 70 bar) and reactant mixture composition of equivalence ratio (0.4 – 2.0) Laminar flame speed library is generated for methane. The mechanism's performance was improved by adjusting the pre-exponential factor of the …

Finding A Single Equation To Represent Urea Evaporation, Sublimation, And Decomposition In Selective Catalytic Reduction Systems, Noah Hertzler

Senior Honors Theses

Aqueous Urea used in Selective Catalytic Reduction (SCR) Systems undergoes three sequential processes that result in ammonia being produced to reduce harmful NOx emissions: Water evaporation, Urea sublimation, and Urea decomposition into ammonia and isocyanic acid. While these phases can be simplified by modeling the Urea as pure water, accuracy is sacrificed to do so. In order to make SCR modelling both accurate and simple, this project set out to find an equation that could represent all three processes. Simulations were run in ANSYS and Particle to generate a set of data, then an empirical equation was created to model …

Plasma Jet Flow Characterization Via Computational Modeling, Declan Brick

Summer Community of Scholars Posters (RCEU and HCR Combined Programs)

No abstract provided.

Buckling Load Study On Pop Nut (Rivet) Using Finite Element Analysis, Saurabh Shankar Shegokar

Dissertations, Master's Theses and Master's Reports

This study highlights the material behavior in riveting operation that includes buckling load analysis using ABAQUS. Finite Element Analysis is used to find the buckling load vs. Displacement results and validated with the results obtained in physical testing of rivet (POP Nut). A mesh sensitivity study is performed using ABAQUS to understand the optimum mesh size for this analysis. An axisymmetric model with contact properties is created and simulated to reduce the simulation time using ABAQUS. The results obtained through Finite Element Analysis show a good resemblance with the testing results. Design changes were suggested to achieve better results that …

Sensitivity And Uncertainty Quantification Of Continuum And Stochastic Bond Dissociation Kinetics Based Cohesive Laws, Rishabh Awasthi

Dissertations, Master's Theses and Master's Reports

Polymeric adhesives are being extensively used to develop light weight and durable Composite Materials which are have been employed in automotive, aeronautical, medical industry. Polymeric adhesives undergo failure due to relative opening sliding of bonded interfaces which requires a need to characterize the fracture mechanism. Numerous experiments are conducted to predict the fracture response for Mode-I, II,III and numerical simulations are employed to inversely calibrate the material parameters governing the constitutive laws. Cohesive zone models are largely employed in fracture mechanics to predict failure of interfaces undergoing large plastic deformations. The objective of this report is to employ the cohesive …

Design, Build, And Analysis Of A Compressed Natural Gas Direct Injection Compression Ignition Single Cylinder Research Engine, Tyler Miller

Dissertations, Master's Theses and Master's Reports

Both experimental and simulation efforts have been employed to further advance the design and build of a single cylinder research engine. The engine will aid in advancing technology and understanding the operation of compression-ignition (CI) engines using natural gas within the heavy-duty engine industry. The basis for the engine is a Cummins 15L ISX engine that has been modified, retrofitted, and instrumented to allow for late-cycle direct-injection of high-pressure compressed natural gas. Along with the engine build, a one-dimensional GT-Power simulation model has been created and used to analyze the engine operation and specify components including the engine compression ratio …

A Study Of Model-Based Control Strategy For A Gasoline Turbocharged Direct Injection Spark Ignited Engine, Xin Wang

Dissertations, Master's Theses and Master's Reports

To meet increasingly stringent fuel economy and emissions legislation, more advanced technologies have been added to spark-ignition (SI) engines, thus exponentially increase the complexity and calibration work of traditional map-based engine control. To achieve better engine performance without introducing significant calibration efforts and make the developed control system easily adapt to future engines upgrades and designs, this research proposes a model-based optimal control system for cycle-by-cycle Gasoline Turbocharged Direct Injection (GTDI) SI engine control, which aims to deliver the requested torque output and operate the engine to achieve the best achievable fuel economy and minimum emission under wide range of …

Generative Design In Energy Efficient Buildings, Johanna Thill

Dissertations, Master's Theses and Master's Reports

This is an investigative report on the use of generative design and genetic algorithms in the design of energy-efficient buildings. It focuses on a workflow using Project Refinery© and Dynamo© in Revit® for multi-objective optimization and visualization, and Honeybee© for daylighting analysis. The workflow was not about to run completely due to instability in Dynamo, however daylighting analysis and visualizations were produced separately from demonstrations of Refinery. It concludes that while genetic algorithms have potential to be useful in energy-efficient building design, these programs are not yet fully developed and difficult to use without extensive background knowledge and fluency in …

Senior Design Proposal For Brakes Subsystem 2019-2020, Jasmine Zogheib, Zachary Demetriades, Devin Seay

Williams Honors College, Honors Research Projects

This report concentrates on efforts to design a new braking system for the Zips Formula Electric Race Team. The improvements to the braking system will be based upon previous years’ official designs along with optimizing for predetermined criteria. The design will be influenced based on design factors of the car such as weight, center of gravity, wheelbase, and integration with other systems of the car.

Custom 3d Printed Orthotic, Dakota Kirtley, Andrew Wiles

Williams Honors College, Honors Research Projects

The goal of this senior design projet is to develop a cutsom 3D printed orthotic shoe insert. Pressure mapping, laser scanning, and 3D modeling will be used to create a truly custom orthotic for each foot. Pressure mapping will give the weight distribution on an individual's food and the laser scanner will give the x-y coordinates of the foot. these two together will be used to generate a a 3D model which will then be 3D printed to create a custom orthotic. Research and material testing will also be done to determine the best material type to be used in …

A Commercial Apartment Complex, Kathleen A. George

Williams Honors College, Honors Research Projects

Within this project the similarities and differences of new and used heating, cooling, and plumbing systems and equipment will be compared and contrasted in depth. Doing so would help further knowledge and understanding of the design field and help to foster quicker decision making in an educated way. The questions to be answered are: in which stage of this project did the client have the best equipment (the high-end outcome) and why, in which stage did they have the cheapest equipment (the low-end outcome) and why, in which stage did they have the best equipment while also being cost efficient …

Rocket Motor Nozzle, Corey Hillegass

Williams Honors College, Honors Research Projects

For this honors research and senior design project, the authors will research, analyze, and manufacture a rocket motor nozzle for the Akronauts rocket design team. This research and design project will improve how the rocket design team will decide and manufacture nozzles going forward. The impact of this improvement allows the rocket design team to take steps toward being self-sustaining by manufacturing student designed parts as opposed to commercially bought parts. This will not only be successful in increasing student impact on future designs, but also provides a technical challenge for the authors and will present as an impressive feat …

Shock Wave And Boundary Layer Interaction, Blake Keuchel, Lauren Andrews, Corryn Rahe

Williams Honors College, Honors Research Projects

Air entering the engine of a supersonic aircraft must be slowed to subsonic speeds for the engine to perform properly and not become significantly damaged over time. Diffusers are designed to create a shockwave to slow down air to subsonic speeds before the air enters the engine. This project will focus on the numerical analysis and design of diffuser geometries for supersonic aircraft engines. The main objective is to evaluate supersonic flow over different geometries, specifically the interaction between shock waves and boundary layer, and to minimize the amount of drag created by different diffuser geometries to optimize the efficiency …

Formula Electric Sae Frame, David Streen, David Kinion, Dylan Ramey

Williams Honors College, Honors Research Projects

The project is for the FSAE Zips Racing Electric Team. The last race car made by the Zips Racing Electric Team has a large potential for optimization. We plan to redesign the frame from the ground up in an effort to reduce weight and increase the performance potential while meeting all FSAE rules and packaging constraints.

Formula Electric is an event in which teams from colleges around the world compete in various events including autocross, endurance and many others with an electrically driven car.

This project will involve the design, analysis, and fabrication of a steel tube space frame for …

Zips Electric Racing Suspension Design, Madison Hughes, Christopher Thompson, Erikah Jackson, Anna Signorino

Williams Honors College, Honors Research Projects

I am working with three others on the suspension and steering sybsystems for the Zips Electric Racing design team at The University of Akron. We are improving upon last year's design to help create an optimized vehicle. As part of this project, we take part in weekly design reviews and team meetings, model parts in Solidworks, and perform simulations and FEA using MATLAB/SIMULINK, Solidworks, and Optimum Kinematics.