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Configurable Seat Track Latching Mechanism, Emily Sun, Kai Quizon, Rick Hall, Daniel Turn, Nicholas Holman, Alexander Kuznik, Jacob Winkler, Audrey Trejo, Phoebe Zeiss, Steven Kam 2021 California Polytechnic State University, San Luis Obispo

Configurable Seat Track Latching Mechanism, Emily Sun, Kai Quizon, Rick Hall, Daniel Turn, Nicholas Holman, Alexander Kuznik, Jacob Winkler, Audrey Trejo, Phoebe Zeiss, Steven Kam

Mechanical Engineering

The reconfigurable seating system is a flexible seating solution for transit vehicles that allows operators to change the configuration of the floor plan in a timely manner in order to accommodate change in needs. This project consists of three senior project teams each working on a component of the design: system, track & latch, and articulation. Descriptions of the responsibilities of each team will be discussed below.


Tensile Testing Environmental Chamber – Structural, Michael Ingel, Erik Soldenwagner, Austin Marshall, Lauren Schirle 2021 California Polytechnic State University, San Luis Obispo

Tensile Testing Environmental Chamber – Structural, Michael Ingel, Erik Soldenwagner, Austin Marshall, Lauren Schirle

Mechanical Engineering

Environmental chambers for tensile testing machines are used to study how a multitude of materials behave in extreme temperatures. These chambers provide the necessary information to innovate cutting edge technology for materials in fields such as aerospace. These chambers are often heavy and expensive requiring a significant amount of time and money just in the installation process alone. This report will serve to outline and define the design and fabrication of an environmental chamber, conducted by a team of four senior mechanical engineering students at California Polytechnic State University, San Luis Obispo. The goals of the project include a low-weight ...


Adaptive Vehicle Control, Brian L. Finger, Maria Vargas, Jacob T. Larson, Christopher J. Villa 2021 California Polytechnic State University, San Luis Obispo

Adaptive Vehicle Control, Brian L. Finger, Maria Vargas, Jacob T. Larson, Christopher J. Villa

Mechanical Engineering

This report presents the final design for our device made for Mrs. Laura Jagels. Mrs. Jagels, who has an above the knee amputation, needed a device that would allow her to operate a manual car in a safe and reliable way that still gives her the traditional driving experience. This report takes into consideration the shortcomings of current market devices that enable amputees to operate vehicles. From this research and through interviews with Mrs. Jagels, we were able to decide on our device specifications, giving us a basis to objectively evaluate designs. Ideation and concept prototype building was performed for ...


Adjustable Head Tube Angle Headset, Glenn Petersen, Ben Harper, Josh Martin, Dylan Prins 2021 California Polytechnic State University, San Luis Obispo

Adjustable Head Tube Angle Headset, Glenn Petersen, Ben Harper, Josh Martin, Dylan Prins

Mechanical Engineering

This final design review report describes the design, manufacture, and test process of a bicycle headset capable of quickly and easily adjusting the effective head tube angle. The evolution of mountain bike geometry has forced bike designers to compromise between climbing and descending performance when choosing a head tube angle. A headset capable of quickly adjusting the effective head tube angle would allow riders to optimize their bike’s geometry for different stages of riding. This report details the research, idea generation, concept development and selection, design, manufacturing, and testing of our adjustable head tube angle headset.


Composite Pegboard, Asa J. Cusick, Luis Corrales, Joelle Hylton, Wyatt Pauley 2021 California Polytechnic State University, San Luis Obispo

Composite Pegboard, Asa J. Cusick, Luis Corrales, Joelle Hylton, Wyatt Pauley

Mechanical Engineering

Many of those with mobility limitations who are told they will need a wheelchair for the rest of their lives can actually begin to stand and walk again given the proper tools and support. The current design for a wheelchair seeking to support this process is overly complex, heavy, and exhibits some features that could potentially pose a serious health hazard to those using it. The scope of this project is to aid in the design of an adaptable composite wheelchair frame that can be both lightweight and strong, while still allowing for physical diversity of potential users. Through research ...


Cnc Feed Drive Control, Ryan J. Funchess, Caleb P. O'Gorman, Nick J. DeSimone, Juan M. Majano, Samuel K. Wong 2021 California Polytechnic State University, San Luis Obispo

Cnc Feed Drive Control, Ryan J. Funchess, Caleb P. O'Gorman, Nick J. Desimone, Juan M. Majano, Samuel K. Wong

Mechanical Engineering

This document serves as the Final Design Report (FDR) for a senior project developed by our team: four senior Mechanical Engineering students and one computer engineering student at California Polytechnic State University, San Luis Obispo (Cal Poly). While the project was completed for, and sponsored by, Professor Simon Xing of Cal Poly, the remainder of the university’s controls professors will be indirectly benefited from this project. Our goal was to design and implement a functional CNC Feed Drive to be used for educational demonstrations and data collection. This document discusses our early product research and benchmark goals, which established ...


F34 Beekeeper Assist, Kyle Ladtkow, Javier Guerra, Jose Velazquez, Ryan Heryford 2021 California Polytechnic State University, San Luis Obispo

F34 Beekeeper Assist, Kyle Ladtkow, Javier Guerra, Jose Velazquez, Ryan Heryford

Mechanical Engineering

Alejandro Jauregui is a veteran who now works as a commercial beekeeper. He lost both of his legs during his service. While his current prostheses allow him to fully complete his work, he has found that inspection of the bee boxes causes him severe hip and back pain. Bee box inspection is a critical task for beekeeping, especially since he maintains about 200 hives every day. Our senior project team was tasked with designing and building a device that would help him move the top bee box out of the way to allow for inspection. We performed preliminary research into ...


Computational Design Of Nonlinear Stress-Strain Of Isotropic Materials, Askhad M.Polatov, Akhmat M. Ikramov, Daniyarbek Razmukhamedov 2021 National University of Uzbekistan Address:4, University Street, Tashkent 100174, Republic of Uzbekistan E-mail: asad3@yandex.ru, Phone: +998903715556,

Computational Design Of Nonlinear Stress-Strain Of Isotropic Materials, Askhad M.Polatov, Akhmat M. Ikramov, Daniyarbek Razmukhamedov

Chemical Technology, Control and Management

The article deals with the problems of numerical modeling of nonlinear physical processes of the stress-strain state of structural elements. An elastoplastic medium of a homogeneous solid material is investigated. The results of computational experiments on the study of the process of physically nonlinear deformation of isotropic elements of three-dimensional structures with a system of one- and double-periodic spherical cavities under uniaxial compression are presented. The influence and mutual influence of stress concentrators in the form of spherical cavities, vertically located two cavities and a horizontally located system of two cavities on the deformation of the structure are investigated. Numerical ...


Mathematical Modeling Of A Two Wheeled Robotic Base, Kathryn Remell 2021 University of Arkansas, Fayetteville

Mathematical Modeling Of A Two Wheeled Robotic Base, Kathryn Remell

Mechanical Engineering Undergraduate Honors Theses

This thesis presents the concept of using a two wheeled robot on the moon and briefly explores the requirements for successful long term operation in a lunar environment. The mathematical model for the motion of a robot with two fixed wheels on a differential drive with in a global reference frame. The robot is assumed to be balancing a platform so the mathematical model to balance the platform with wheel motors is also developed and briefly evaluated.


Project Blipper, Peter Jacobs, Preston Delaware, Ryan Foster 2021 Kennesaw State University

Project Blipper, Peter Jacobs, Preston Delaware, Ryan Foster

Senior Design Project For Engineers

This project was sponsored by Clorox to design and create an automatic bottle-unscrambling system for possible implementation at their bottling plant in Chile. The objective was to use a robotic arm to unscramble bottles from an incoming conveyor belt and place them upright on an outbound conveyor belt. Throughout the research, design, and testing of solutions for this project, several design alternatives were found for each discipline, and will be presented to Clorox so that they can make an informed decision for how and if they want to move forward with implementation of this project.

The project was split into ...


Kennesaw State University And United Alloy Corporation Robotic Pick And Place Project, Kathryn Bharadwaj, Logan Spencer, Tharkun Hudlow 2021 Kennesaw State University

Kennesaw State University And United Alloy Corporation Robotic Pick And Place Project, Kathryn Bharadwaj, Logan Spencer, Tharkun Hudlow

Senior Design Project For Engineers

United Alloy Corporation (UAC), a company specializing in unique aluminum parts for aeronautics, needed a fix to their error prone, labor-intensive billet press operation. The process has a problem of adding the wrong size or wrong alloy billet to the induction oven, which results in a waste of raw materials. The billets range from ten to thirty-seven inches in length and weigh up to three hundred pounds. Currently, an operator uses a gantry crane to check and lift the billets from a rack onto the magazine of an induction oven. The magazine can hold up to three billets safely and ...


Free Vibration Analysis Of Rotating Beams Based On The Modified Couple Stress Theory And Coupled Displacement Field, Alireza Babaei, Masoud Arabghahestani 2021 University of Kentucky

Free Vibration Analysis Of Rotating Beams Based On The Modified Couple Stress Theory And Coupled Displacement Field, Alireza Babaei, Masoud Arabghahestani

Mechanical Engineering Graduate Research

In this paper, transverse vibration analysis of rotating micro-beam is investigated based on the modified couple stress theory. The simply-supported micro-beam is modeled utilizing Euler-Bernoulli and Timoshenko beam theories. The system is rotating around a fixed axis perpendicular to the axial direction of the beam. For the first time, displacement filed is introduced as a coupled field to the translational field. In other words, the mentioned rotational displacement field is expressed as a proportional function of translational displacement field using first (axial), second (lateral), and third (angular or rotational) velocity factors. Utilizing Hamilton’s approach as a variational method, dynamic-vibration ...


Accelerated Controller Tuning For Wind Turbines Under Multiple Hazards, Aly Mousaad Aly, Milad Rezaee 2021 Louisiana State University

Accelerated Controller Tuning For Wind Turbines Under Multiple Hazards, Aly Mousaad Aly, Milad Rezaee

Faculty Publications

During their lifecycle, wind turbines can be subjected to multiple hazard loads, such as high-intensity wind, earthquake, wave, and mechanical unbalance. Excessive vibrations, due to these loads, can have detrimental effects on energy production, structural lifecycle, and the initial cost of wind turbines. Vibration control by various means, such as passive, active, and semi-active control systems provide crucial solutions to these issues. We developed a novel control theory that enables semi-active controller tuning under the complex structural behavior and inherent system nonlinearity. The proposed theory enables the evaluation of semi-active controllers’ performance of multi-degrees-of-freedom systems, without the need for time-consuming ...


Enduro Campers, Ryan J. Shomsky, Alexander W. Horst, Kevin S. Pickering, Jackson L. Aplanalp, Luke Arana, Will Firestone 2021 California Polytechnic State University, San Luis Obispo

Enduro Campers, Ryan J. Shomsky, Alexander W. Horst, Kevin S. Pickering, Jackson L. Aplanalp, Luke Arana, Will Firestone

Mechanical Engineering

The Enduro Campers senior project team (Formerly known as Lobo Campers senior project team) was recruited by Mr. Leif Stein to assist in the design, manufacturing, and testing of the materials and components of his company’s expedition box camper. The two main focuses of the project, divided into two sub-teams, were on the testing and manufacturing process of the materials used in the camper, and on the design and analysis of the camper’s access door, step box, and other subsystems.

The focus of the materials analysis and manufacturing team was based around the design parameter to use composite ...


Half-Barrel Planter Mover, Mihir Shah, Natalie Lewis, Mason James Hughes 2021 California Polytechnic State University, San Luis Obispo

Half-Barrel Planter Mover, Mihir Shah, Natalie Lewis, Mason James Hughes

Mechanical Engineering

A device for transporting heavy barrel planters is needed. Barrel planters are wooden wine barrels that have been cut in half along the circumference. They are used to store and grow a variety of plants. As such, they can contain more than 300 pounds of soil. The products currently on the market are not designed for such heavy planters, are cost prohibitive, and do not take advantage of the tapered design of a wine barrel half. A solution is needed that is durable, easy to use, and low cost. This final design report will show the steps used to find ...


A Single-Stage Passive Vibration Isolation System For Scanning Tunneling Microscopy, Toan T. Le 2021 California Polytechnic State University, San Luis Obispo

A Single-Stage Passive Vibration Isolation System For Scanning Tunneling Microscopy, Toan T. Le

Master's Theses

Scanning Tunneling Microscopy (STM) uses quantum tunneling effect to study the surfaces of materials on an atomic scale. Since the probe of the microscope is on the order of nanometers away from the surface, the device is prone to noises due to vibrations from the surroundings. To minimize the random noises and floor vibrations, passive vibration isolation is a commonly used technique due to its low cost and simpler design compared to active vibration isolation, especially when the entire vibration isolation system (VIS) stays inside an Ultra High Vacuum (UHV) environment. This research aims to analyze and build a single-stage ...


Design For Additive Manufacturing (3d Printing), Michael O'Donnell, Michael J. Levy 2021 University of Akron

Design For Additive Manufacturing (3d Printing), Michael O'Donnell, Michael J. Levy

Williams Honors College, Honors Research Projects

The goal of this project is to study the performance of a 3D printed mechanical part subjected to topology optimization. A part that is somewhat complex in its load bearing and geometry will be selected. That part will then be designed, finite element analysis will be performed on it to optimize its topology, and then it will be 3D printed and tested. The goal of topology optimization is to either save material cost and/or part weight due to the ability of 3D printing to manufacture parts with complex and obscure geometry.


Smart Home Pet Feeder, Andrew Markja, Simona Zdravev, Timothy Zubek, Christian Jackson 2021 The University of Akron

Smart Home Pet Feeder, Andrew Markja, Simona Zdravev, Timothy Zubek, Christian Jackson

Williams Honors College, Honors Research Projects

The goal of this project was to design a Smart Home Pet Feeder that will allow the owner to feed their pet using 4 different methods. The methods are: manually, scheduled, app/url, Alexa/Google. The advantages of this design are that it will become convenient for pet owners who are busy and unable to make it back to their house to feed their pets remotely or for those who enjoy the use of technology from within their home for no-trouble feeding.


Door Barricade, Alex Cerino 2021 The University of Akron

Door Barricade, Alex Cerino

Williams Honors College, Honors Research Projects

My senior capstone project will be a door barricade. The main idea for the use of the door barricade is for schools in the case of an intruder. The barricade that I will be designing is a solution to the inefficient barricades that I saw at my high school. It could also be used at businesses and homes. My design would be easy to use and have a fail-safe option. The two areas of mechanical engineering technology that my capstone project will focus on are stress analysis and electronics. Every part for my door barricade is drawn in SolidWorks. All ...


Hydraulic Vehicle Challenge, Jacob Steiner, David Kotovets, Evan Blitz, Luke Fetherston, Alex Colucy 2021 The University of Akron

Hydraulic Vehicle Challenge, Jacob Steiner, David Kotovets, Evan Blitz, Luke Fetherston, Alex Colucy

Williams Honors College, Honors Research Projects

The target goal of this project is for a team of students to design a vehicle which is based on human power as the primary mover of the system and achieves vehicle propulsion through the required use of hydraulics and pneumatics. In summary, the rider will power a pump that will generate pressure in order to move the fluid that drives the motor. This will result in the powered rotation of the wheels. As there are many possible designs, naturally, this means that the final design for the vehicle will have specific limitations such as weight and the required use ...


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