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Articles 1 - 30 of 55
Full-Text Articles in Engineering
Gaylord Produce Removal Machine, Marcus Takashi Hirose Lee, Jacob Michael Perlman, Carissa Abigail Kamm, Mark Misao Loera
Gaylord Produce Removal Machine, Marcus Takashi Hirose Lee, Jacob Michael Perlman, Carissa Abigail Kamm, Mark Misao Loera
Mechanical Engineering
This Final Design Review Report outlines the senior design project that began Winter Quarter of 2021 at California Polytechnic State University. Our team consists of three mechanical engineers and a general engineer, working together to design, build, and test a product for Alameda County Food Bank. The goal of the final product is to relieve volunteers and employees of tedious manual labor and increase efficiency during the removal of produce from large Gaylord containers. This document describes background research, the objectives of the project, chosen concept design, analysis and initial prototyping of said concept, the final design, and verification prototype …
W22 Landing Gear And Door Uplocks Final Design Review (Fdr), Jason Szeto, Garrett Donovan, Christopher Edward, Kevin Lee
W22 Landing Gear And Door Uplocks Final Design Review (Fdr), Jason Szeto, Garrett Donovan, Christopher Edward, Kevin Lee
Mechanical Engineering
This Final Design Review report outlines the senior project sponsored by General Atomics Aeronautical Systems, Inc., to design an unmanned aerial vehicle landing gear uplock and door locks. The main goal of the project is to create a proof-of-concept uplock that does not operate on hydraulic power, has minimal moving parts, and can support the weight, vertical acceleration and aerodynamic loads on the landing gear or doors. The document covers the background research, design specifications, design selection process, justifications, manufacturing, and verification of the functional prototype.
Automated Mini-Tubular Ceramic Production, Hunter Brooks, Daniel Freeman, Leo Taranta-Slack
Automated Mini-Tubular Ceramic Production, Hunter Brooks, Daniel Freeman, Leo Taranta-Slack
Mechanical Engineering
Researchers at Lawrence Livermore National Laboratory need a way to increase the rate of manufacturing of mini-tubular ceramics to be used in testing particulate air filters. This document outlines our process from researching and writing an initial scope of work all the way to fabricating and testing a final prototype. This journey takes us through the background research, ideation process and selection of a final design. We also detail the desired engineering specifications and our concept selection process. We dedicate a significant portion of this report to discussion of our final design. We delve into how it was manufactured as …
Compact In-Rack Dielectric Immersion Cooling System, Salvador Landeros Jr, Joshua M. Hannaman, Marshall D. Reid
Compact In-Rack Dielectric Immersion Cooling System, Salvador Landeros Jr, Joshua M. Hannaman, Marshall D. Reid
Mechanical Engineering
The Compact Dielectric Cooling team consisting of Josh Hannaman, Marshall Reid, and Salvador Landeros worked with Aria Technologies to create a thermal management system for data centers that can easily implement liquid cooling into current infrastructure for high density computing servers. The project was to design, build, and test a compact immersion cooling system for a senior project at California Polytechnic State University – San Luis Obispo. Immersion cooling is a liquid-cooling process that involves the immersion of electrical IT equipment and the removal of heat from the hot IT components using dielectric liquid. The goal was to build a …
Gaf Fiberglass Mat Slitter Blade Sharpener, Mark D. Breaux, Bradley M. Smith, Esteban Carrillo, Carlos Espinoza
Gaf Fiberglass Mat Slitter Blade Sharpener, Mark D. Breaux, Bradley M. Smith, Esteban Carrillo, Carlos Espinoza
Mechanical Engineering
This document contains an overview for the offline slitter blade sharpening system created for GAF to sharpen their current cutting tools in a timely and safe manner without hindering the timeline and production of their assembly line. This design was developed by four undergraduate students at from Cal Poly, San Luis Obispo. This document first investigates background information of any patents, current sharpening device, sharpening safety standards, or literature review that may be useful in a sharpening mechanism device. This document also contains our design concept prototype, which consists of three main features, the use of a top guard for …
Produce Sorting Aid, Annica Navarro, Jessie Boucher, Natalie Roberts, Teng Lee
Produce Sorting Aid, Annica Navarro, Jessie Boucher, Natalie Roberts, Teng Lee
Mechanical Engineering
This Final Design Review (FDR) document intends to define the details of the Produce Sorting Aid senior project–selected by four mechanical engineering students, working under the team name Team W24. The Alameda County Community Foodbank (ACCFB) sorts bulk produce into bags or boxes for distribution to people in need of food. However, the current process is not ergonomic, time efficient, or safe for the volunteers at the ACCFB. The scope of the senior project is to design a mechanism that is ergonomic, time efficient, and safe for the volunteers to lift heavy produce and distribute the produce into bags ready …
Optimized Tip Cooling Using Am Process, Alberto H. Gamez, Lourdes Sarmiento Martinez, Andrew Van Bogelen
Optimized Tip Cooling Using Am Process, Alberto H. Gamez, Lourdes Sarmiento Martinez, Andrew Van Bogelen
Mechanical Engineering
This Final Design Review (FDR) reports on the senior design project undertaken by our team of mechanical engineering seniors at California Polytechnic State University, San Luis Obispo. This project seeks to use the additive manufacturing process to improve the existing design of a Taurus 60 gas turbine injector tip. The current injector tip is owned by Solar Turbines, a designer and manufacturer of gas turbines for electric generation, propulsion, as well as natural resource transportation. The challenge at hand is to design a new injector tip that will be reliable for at least 60,000 hours and provide ease of replacement, …
Mug For Veterans With Tremors, Eliot Daniel Briefer, Nicholas Michael Greco, Lucas Paul Martos-Repath, Tiernan Lif Kehoe
Mug For Veterans With Tremors, Eliot Daniel Briefer, Nicholas Michael Greco, Lucas Paul Martos-Repath, Tiernan Lif Kehoe
Mechanical Engineering
This Final Design Review Report outlines the senior design project completed by a team of mechanical engineering students attending California Polytechnic State University, San Luis Obispo for the McGuire Veterans Affairs Medical Center in Richmond, VA. The scope of the project was to design, build, and test a device for veterans with tremors that would allow them to enjoy their favorite drinks comfortably and easily, without worrying about spills. The final product must be lightweight, aesthetic, capable of handling various tremor types, and can be operated in multiple planes to allow the veterans full control over the device. This document …
Inverted Fluorescence Microscope, Matthew B. Pfeiffer, Spencer George Hann, Thomas James Eggenberger, Trevor Lee Blythe
Inverted Fluorescence Microscope, Matthew B. Pfeiffer, Spencer George Hann, Thomas James Eggenberger, Trevor Lee Blythe
Mechanical Engineering
Team F13 is composed of Trevor Blythe, Spencer Hann, Matthew Pfeiffer, and Thomas Eggenberger. We are all majoring in mechanical engineering and in our final year of study here at Cal Poly San Luis Obispo. This project is a continuation of a 2019-2020 senior project. The previous team designed and built a functioning inverted fluorescence microscope (IFM) from scratch. This device was created as a lab tool for undergraduate students to be able to perform experiments on microfluidic devices constructed in Cal Poly’s Microfabrication Laboratory. Although substantially functional, several design constraints had not yet been met. Our team has improved …
Prosthetic Foot Shell, Christopher Menke, Colton Arbuckle, Jacob Rodriguez
Prosthetic Foot Shell, Christopher Menke, Colton Arbuckle, Jacob Rodriguez
Mechanical Engineering
Prosthetic foot shells are designed to fit around lower limb prosthetics to be able to fit shoes and several types of footwear. They are currently designed in a way that they wear through very quickly if used in an active lifestyle. The current designs on the market are designed for geriatric use. The sponsor for this project Mr. Dana Cummings, would like for the team to produce a product that extends current foot shell’s life. This document explains includes the team’s research process, the design process, and the main functions of what the team designed for. It will also show …
Solar Decathlon Competition 2021, Khanh My Fleshman, Ashley H. Kim, Ian Grant Maclean, Erich Peter Fenczik Warnock, Carina Michaela Nani Monaco
Solar Decathlon Competition 2021, Khanh My Fleshman, Ashley H. Kim, Ian Grant Maclean, Erich Peter Fenczik Warnock, Carina Michaela Nani Monaco
Mechanical Engineering
This report is intended to outline all relevant background information, decisions, and design direction for our senior project at California Polytechnic State University, San Luis Obispo. We will be designing net-zero, affordable housing to compete in the attached housing division of the 2021 Department of Energy Solar Decathlon. With the increased urgency of climate change and focus on sustainability in construction, the importance of designing a net-zero structure is very apparent. Because there is a great need for affordable and sustainable housing in Watts, CA, we will be tailoring our design to meet this community’s needs. Details of the Solar …
Standardizing 1ru Chassis To Pcba Interfaces, Bryce J. Mcneil, Leia K. Tashiro, John H. Liu, Sarika L. Singhal
Standardizing 1ru Chassis To Pcba Interfaces, Bryce J. Mcneil, Leia K. Tashiro, John H. Liu, Sarika L. Singhal
Mechanical Engineering
Cisco currently designs a variety of custom chassis for different types of servers, routers, and switches. Our senior design project aims to reduce the number of custom chassis Cisco develops by standardizing the perimeter mounting locations for the printed circuit board assembly on the chassis. The purpose of this report is to document our selected project direction and support the decisions with appropriate evidence. In addition to research on the customer’s needs, the product, and the technical background used to understand the project scope, our group has come up with a way to analyze and compare mounting locations for various …
Bicycle Headset With Adjustable Spring Rate, Andrew W. Drees, Jonah Masumoto, Camden R.S. Boshart, Matthew B. Mounteer
Bicycle Headset With Adjustable Spring Rate, Andrew W. Drees, Jonah Masumoto, Camden R.S. Boshart, Matthew B. Mounteer
Mechanical Engineering
Fork flop can play an important role in the performance of a mountain bike. This phenomenon of fork flop is known as the tendency that the front wheel of a bike wants to flop over to one side when moving slowly. The fork flop experienced on a bicycle changes with the geometry of the bike, but our team sought to change the fork flop experienced through an adjustable internal spring design that attaches to the bicycle instead. From our research, we decided to utilize torsion springs as the method for mitigating fork flop. We also decided to use load cells …
Sourceamerica Design Challenge Accessible Kitting And Packaging Station, Christopher Wijaya Tan, Keanau Rick Robin, Kyle Huawei Chuang, Ashley Humpal
Sourceamerica Design Challenge Accessible Kitting And Packaging Station, Christopher Wijaya Tan, Keanau Rick Robin, Kyle Huawei Chuang, Ashley Humpal
Mechanical Engineering
This document entails our research, design, proposed development, and testing process for solving the 2020 SourceAmerica collegiate design challenge. Our team, “Just Kitting”, is composed of four Mechanical Engineering students from California Polytechnic San Luis Obispo. The design challenge requires us to create a device that will help improve the quality of life and productivity of people with disabilities working in the kitting and packaging industry. This document includes our background research and information received from various interviews with our sponsor and others who have experience working with disabilities. Using this information, we refined our problem statement to focus on …
Tensile Testing Environmental Chamber – Structural, Michael Ingel, Erik Soldenwagner, Austin Marshall, Lauren Schirle
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 …
Consumer-Ready Insulated Solar Electric Cooker, Simon Ford, Sachin Gokhale, Brendan Lynn, Richard Nguyen
Consumer-Ready Insulated Solar Electric Cooker, Simon Ford, Sachin Gokhale, Brendan Lynn, Richard Nguyen
Mechanical Engineering
An insulated solar electric cooker, or ISEC, converts solar energy into electricity to cook food, boil water, provide heat or even help charge batteries. In this project, the focus is an ISEC with a phase change material (PCM) that helps store heat when the solar energy input is minimal, such as after the sun has set. Although a successful ISEC already exists that utilizes PCM, this product can be improved in many ways. The specific revisions investigated in this report are the improvement of the thermal efficiency with the implementation of a vacuum-sealed outer pot, the reduction of the overall …
3-Axis Reaction Wheel System For Cubesats, Alexandra Mae Lee, Daniel Leon, Christopher Pablo Casillas, Rose Mccarver
3-Axis Reaction Wheel System For Cubesats, Alexandra Mae Lee, Daniel Leon, Christopher Pablo Casillas, Rose Mccarver
Mechanical Engineering
Reaction wheels are a common, but expensive, component used in CubeSats, that can accurately position a satellite using an imparted momentum (or impulse) from a rotating flywheel to adjust a satellite’s attitude. This document serves as the final design review and report for the 3-Axis Reaction Wheel Senior Design Project in the Mechanical Engineering Department of California Polytechnic State University, San Luis Obispo. The goal of this project is to produce a functional, low-cost 3-axis reaction wheel system based on previous research done by a master’s student at Cal Poly to be implemented in future CubeSats in the Cal Poly …
Laminar Flow Face Shield, Julia Carlson, Peter Hunt, Jomil Aquipel, Becky Lu
Laminar Flow Face Shield, Julia Carlson, Peter Hunt, Jomil Aquipel, Becky Lu
Mechanical Engineering
The scope of this project was to design a personal protective equipment (PPE) that protects the wearer from SARS-CoV-2 without inhibiting communication and was comfortable to wear for long periods of time. SARS-CoV-2, commonly known as COVID-19, is a contagious respiratory virus that spreads through droplets produced when someone who is infected by the virus coughs, sneezes, or talks. These droplets may land on the mouths or noses of nearby people or may be inhaled in the lungs, infecting those who come in contact with the virus. The current guidelines to help slow the spread of COVID-19 are to wear …
Blds Pressure Belt, Hailey Earnest, Sean Casteel, Benjamin Bons, Biren Rama
Blds Pressure Belt, Hailey Earnest, Sean Casteel, Benjamin Bons, Biren Rama
Mechanical Engineering
Dr. Westphal has a Boundary Layer Data System (BLDS) that is used to take pressure measurements on the surface of the aircraft. Our team has created a design and manufacturing method for producing the corresponding pressure belt that attaches to Dr. Westphal's system to obtain pressure data.
Adjustable Head Tube Angle Headset, Glenn Petersen, Ben Harper, Josh Martin, Dylan Prins
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.
Cal Poly Wind Power: Wind Turbine Prototype, Sophie A. Spencer, Maggie Nevrly, Michael Reyna, Loi Q. Nguyen
Cal Poly Wind Power: Wind Turbine Prototype, Sophie A. Spencer, Maggie Nevrly, Michael Reyna, Loi Q. Nguyen
Mechanical Engineering
The Cal Poly Wind Power (CPWP) club is competing in the Collegiate Wind Competition (CWC) hosted by the National Renewable Energy Laboratory (NREL). The CWC is hosted annually by NREL to increase the number of skilled workers prepared to work in the wind energy industry. Our senior project team is one of several design teams contributing to the CPWP prototype turbine design including the pitching mechanism, blade design, generator, and shaft. The scope of this project is to design the yaw mechanism, tower, and nacelle. The goal is to create components that function well with other planned components and are …
Adaptive Vehicle Control, Brian L. Finger, Maria Vargas, Jacob T. Larson, Christopher J. Villa
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 …
Interactive Physics Display: Air Cannon, Marina Smeltzer, Sydney Hosokawa, Jordan Nguyen, Jessica Ouyang
Interactive Physics Display: Air Cannon, Marina Smeltzer, Sydney Hosokawa, Jordan Nguyen, Jessica Ouyang
Mechanical Engineering
The San Luis Obispo Botanical Garden (SLOBG) is a non-profit organization that provides a place for visitors to connect with and explore nature. The sponsors from SLOBG sought an interactive physics display to be implemented in their children’s garden that will educate children and adult visitors about physics concepts in a welcoming and comfortable atmosphere. The research done showed that customers are looking for a “wow” factor with the display to surprise and engage them. Patents showed the design and build of interactive playground equipment. Government reports described the curriculum for the target audience and also outlined the safety precautions …
Nasa Micro-G Next Challenge: Sample Container Dispensing Device, Kristin G. Kraybill-Voth, Kelsey L. Mickelson, Oscar D. Popravka
Nasa Micro-G Next Challenge: Sample Container Dispensing Device, Kristin G. Kraybill-Voth, Kelsey L. Mickelson, Oscar D. Popravka
Mechanical Engineering
This Final Design Review (FDR) report outlines a Cal Poly San Luis Obispo senior design project developing a sample container dispensing device for NASA Johnson Space Center’s Micro-g NExT design challenge, a competition for university students. NASA aims to bring the first woman and next man to the moon through the Artemis missions beginning in 2024. The Micro-g NExT 2021 challenges focus on developing equipment which will support the Artemis mission, where Astronauts will conduct extensive geological sampling to further the scientific understanding of the moon. Our team designed, built, and tested a device that holds sample bags as they …
Controlling Locomotion Of A Robotic Leg, Tai K. Mitchell, Connor Bush, Patrick Ward, Ben Spin
Controlling Locomotion Of A Robotic Leg, Tai K. Mitchell, Connor Bush, Patrick Ward, Ben Spin
Mechanical Engineering
Dr. Xing and Professor Refvem are working to research and develop a quadruped robot that is capable of basic movements including walking, running, and jumping. As senior project group F-11, we are joining a team of engineers to assist in the development of the quadruped. Our team was tasked with creating a mathematical model, designing a control method, and implementing that control method for the quadruped's legs in Simulink. This will allow both current and future students to understand the response of the system and provide a building point for future researchers to create working quadrupedal robots. This report documents …
Sustainable Energy Storage, Jacob S. Grillo, Alyse C. Coonce, Jack R. Linchey, Nick P. Schnorr
Sustainable Energy Storage, Jacob S. Grillo, Alyse C. Coonce, Jack R. Linchey, Nick P. Schnorr
Mechanical Engineering
This Final Design Review document covers the work we, students at California Polytechnic State University – San Luis Obispo, have performed in collaboration with Mr. Harish Bhutani and Dr. Mohammad Noori. The project’s intent is to create an energy storage system for off-grid and developing region applications using alternative technologies to lithium-ion battery storage. We plan to manufacture and assemble a scale model of the energy storage system to prove effectiveness and practicality. This system will store enough energy to power basic appliances and essential devices for a house or community. The chosen design direction will be a flywheel, as …
Bull Outdoor Products - Electric Grill, Sofie M. Groberman, Makai J. Baker, James T. Andrews
Bull Outdoor Products - Electric Grill, Sofie M. Groberman, Makai J. Baker, James T. Andrews
Mechanical Engineering
Our senior design project team designed, assembled, and tested an outdoor electric grill. The sponsor for our project is Bull Outdoor Products, a high-end outdoor kitchen set, pizza oven, and grill company. We met with our sponsor to discuss project expectations and important product characteristics. We also researched the barbecue market and its customers to determine what grill characteristics are the most important. We learned which engineering specifications needed to be tested and outlined what our goals and overall objectives for this project are. With our background research and overall objectives in mind, we came up with different solutions through …
Saver (Surface Autonomous Vehicle For Emergency Rescue), Tyler Jorgensen, Ethan Miller, Josephine Isaacson, Joshua Hoye
Saver (Surface Autonomous Vehicle For Emergency Rescue), Tyler Jorgensen, Ethan Miller, Josephine Isaacson, Joshua Hoye
Mechanical Engineering
This document serves to introduce the design team and their competition challenge, as well as to detail the results of the project. The original design challenge was the NASA Micro-g NExT’s SAVER (Surface Autonomous Vehicle for Emergency Rescue) competition; we were tasked with developing a self-driving water vehicle capable of delivering supplies to Orion astronauts separated from the rest of their crew in the case of a maritime emergency. However, we were not selected to go forward in this competition and thus we decided to scale down the size of the SAVER device to shift the focus of the project …
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
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.
Hands-On 3d Printed Dynamics Activities, Dakota Baker, Jacob Lindberg, Andrew Meyenberg, Junnior Rodriguez
Hands-On 3d Printed Dynamics Activities, Dakota Baker, Jacob Lindberg, Andrew Meyenberg, Junnior Rodriguez
Mechanical Engineering
The advancement of 3D printing has allowed everyday individuals to rapid prototype and manufacture in a more efficient, cost-effective, and timely manner. This has paved the way for a more adaptable educational model, by allowing instructors to easily access alternative instruments for teaching. By providing students with tangible tools, they will better be able to grasp complex principles. Dynamics professors need a way in which they can easily access these academic tools, transport them to and from class, and teach multiple dynamics principles through variations of a single 3D printed kit. Interviews with professors and students were conducted to gain …