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Cal Poly Rodeo Breakaway Jackpot Fundraiser, Molly Sparrowk, Laci Lowry

Agricultural Education and Communication

Every team member of the Cal Poly Rodeo team is required to bring in a certain amount of sponsorship money to help put on the annual Poly Royal Rodeo each April. While this money helps a lot, more money is still needed to cover the cost of production for Cal Poly Rodeo. This is where a breakaway roping jackpot will come in to play and help cover some additional production costs.

For this senior project, the authors plan on hosting a breakaway jackpot fundraiser for Cal Poly Rodeo. A breakaway jackpot consists of girl contestants roping three calves as fast …

Pitting Corrosion Of Oerlikon’S Abrasion Resistant Ferritic Stainless Steels, Matthew P. Nalty, Emma Wagstaff

Materials Engineering

Existing hardfacing coatings for hydraulic cylinders and brake disc applications crack during use leaving the components susceptible to corrosion. To address this problem, Oerlikon has designed three new alloys to be abrasion and corrosion resistant. This paper reviews the literature necessary to understand and quantify pitting resistance of stainless-steel alloys. It documents one round of testing ASTM G48 method A: Ferric Chloride Pitting Test of Stainless Steels on the new alloys P72-X9, P72-X13, P129-X9, as well as samples of 431, 316, and 2205 stainless steels. This paper also discusses improvements to the G48 testing method and industry use of the …

Alternative To Custom 450© Stainless Steel For Use In Investment Cast Golf Club Heads, William Henry Armstrong Iv, Davis Martin Loen

Materials Engineering

This investigation seeks to improve on the mechanical property of yield strength, while maintaining 10% elongation prior to fracture observed with of Custom 450 stainless steel in an air-melted investment casting operation. Improving this performance includes an additional heat treatment step of homogenization, as well as replacing the alloy. After identifying and downselecting available high strength stainless steels, a trial of Custom 455 stainless steel is recommended due to its high strength compared to the other alternative alloys. A trial has been developed to analyze the effect air melting has on the chemical composition and mechanical properties of Custom 455 …

Creating A Livestock Show From The Beginning For The Benefit Of Youth In The Agriculture Industry And Continuing The Tradition Of Showing, Chloé Fowler, Matthew Durian

Agricultural Education and Communication

Youth throughout the country have been shown to benefit through organizations focused on leadership and real-world tangible skills. Organizations such as the National FFA Organization and 4-H Youth Development are key organizations for this growth. Livestock shows are another layer to these organizations and youth development. “Livestock shows provide interactions through different environments that expose participants to different cultures,” (Davis, 1998).

For these reasons it is important to provide more opportunities to the next generation of agriculture. There are currently 28 different livestock jackpots within the state of California throughout one year, (CJLA, 2020). Due to the large geographic landscape …

Adapted Tricycle, Eldar Rastoder, Michael S. Petralia, Foster D. Sutton, Jeffrey T. Neumann

Mechanical Engineering

This Final Design Review document describes the senior design project carried out by a team of four mechanical engineering students from California Polytechnic State University, San Luis Obispo in conjunction with California Children’s Services for Savannah, a student at San Luis Obispo High School. The purpose of the project is to design an adaptive vehicle for Savannah that serves as a form of exercise and can be easily operated by her with little to no outside assistance. Background into Savannah’s condition is provided as well as previous designs of similar adaptive tricycles, document standards and specifications which constrain design solutions, …

Flexible Fault Tolerance For The Robot Operating System, Sukhman S. Marok

Master's Theses

The introduction of autonomous vehicles has the potential to reduce the number of accidents and save countless lives. These benefits can only be realized if autonomous vehicles can prove to be safer than human drivers. There is a large amount of active research around developing robust algorithms for all parts of the autonomous vehicle stack including sensing, localization, mapping, perception, prediction, planning, and control. Additionally, some of these research projects have involved the use of the Robot Operating System (ROS). However, another key aspect of realizing an autonomous vehicle is a fault-tolerant design that can ensure the safe operation of …

Conceptual Design Of A South Pole Carrier Pigeon Uav, Kendrick M. Dlima

Master's Theses

Currently, the South Pole has a large data problem. It is estimated that 1.2 TB of data is being produced every day, but less than 500 GB of that data is being uploaded via aging satellites to researchers in other parts of the world. This requires those at the South Pole to analyze the data and carefully select the parts to send, possibly missing out on vital scientific information. The South Pole Carrier Pigeon will look to bridge this data gap.

The Carrier Pigeon will be a small unmanned aerial vehicle that will carry a 30 TB solid-state hard drive …

The Influence Of The Sensory Environment On Avian Reproductive Success And Human Well-Being, Danielle Marie Ferraro

Master's Theses

Sensory pollutants such as anthropogenic noise and night lighting now expose much of the world to evolutionarily novel sound and night lighting conditions, which can have detrimental effects on humans and wildlife. In my first chapter, we exposed wild Western Bluebird (Sialia mexicana) nestlings to noise, light, and combination (i.e., noise and light) treatments. Nests exposed to noise and light together experienced less predation than control and light-exposed nests, and noise-exposed nests experienced less predation than control nests, yet overall nest success was only higher in noise-exposed nests compared to light-exposed nests. Although exposure to light decreased nestling body condition …

Indoor Positioning Using Acoustic Pseudo-Noise Based Time Difference Of Arrival, Nicholas J. Luong

Master's Theses

The Global Positioning System (GPS) provides good precision on a global scale, but is not suitable for indoor applications. Indoor positioning systems (IPS) aim to provide high precision position information in an indoor environment. IPS has huge market opportunity with a growing number of commercial and consumer applications especially as Internet of Things (IoT) develops. This paper studies an IPS approach using audible sound and pseudo-noise (PN) based time difference of arrival (TDoA). The system’s infrastructure consists of synchronized speakers. The object to be located, or receiver, extracts TDoA information and uses multilateration to calculate its position. The proposed IPS …

Design Of A Printed Circuit Board For A Sensorless Three-Phase Brushless Dc Motor Control System, Joshua Castle

Master's Theses

The use of brushless motors has increased in recent years due to superior performance characteristics compared with alternatives. The operation of a brushless motor is dependent upon a separate controller which is often in the form of a printed circuit board. As such, the size and performance capability of the controller can restrict the performance of the overall motor control system so advancements of these controllers further the potential use of BLDC motors. This project outlines the design of a PCB based, sensorless motor controller for operation of a three-phase BLDC motor powered by a 24 V, high current external …

The Design, Testing, And Analysis Of A Constant Jammer For The Bluetooth Low Energy (Ble) Wireless Communication Protocol, Aiku Shintani

Master's Theses

The decreasing cost of web-enabled smart devices utilizing embedded processors, sensors, and wireless communication hardware have created an optimal ecosystem for the Internet of Things (IoT). IEEE802.15.4, IEEE802.11ah, WirelessHART, ZigBee Smart Energy, Bluetooth (BT), and Bluetooth Low Energy (BLE) are amongst the most commonly used wireless standards for IoT systems. Each of these standards has tradeoffs concerning power consumption, range of communication, network formation, security, reliability, and ease of implementation. The most widely used standards for IoT are Bluetooth, BLE, and Zigbee. This paper discusses the vulnerabilities in the implementation of the PHY and link layers of BLE. The link …

Three Axis Attitude Control System Design And Analysis Tool Development For The Cal Poly Cubesat Laboratory, Liam T. Bruno

Master's Theses

The Cal Poly CubeSat Laboratory (CPCL) is currently facing unprecedented engineering challenges—both technically and programmatically—due to the increasing cost and complexity of CubeSat flight missions. In responding to recent RFPs, the CPCL has been forced to find commercially available solutions to entire mission critical spacecraft subsystems such as propulsion and attitude determination & control, because currently no in-house options exist for consideration. The commercially available solutions for these subsystems are often extremely expensive and sometimes provide excessively good performance with respect to mission requirements. Furthermore, use of entire commercial subsystems detracts from the hands-on learning objectives of the CPCL by …

Wildland Fire Location Management System (Wflms), Robert G. Goldie, Jack A. Gallegos

Electrical Engineering

Wildland firefighters work in complex, dangerous environments where effective communication is key to developing situational awareness. Currently, the only communication firefighters have is with Very High Frequency (VHF) 160 MHz band analog radios. While digital radio protocols could potentially allow location data and commands to be sent to field crews, the technology is primarily for voice communication. This project presents a new system that frees up voice channels and uses LoRa transceivers for robust communication. The system allows for emergency and location reports to be sent to a dispatcher via an airborne repeater. The entire system is software-defined, so it …

Fighting For Equality In The Workforce, Madison Taylor Dewing

Communication Studies

Inequality, discrimination, and sexual harassment has been occurring ever since individuals stepped into the workforce. All individuals are affected by these issues but in this paper, I mainly focus on women. I discuss the psychological effects these issues have on individuals, and then introduce my method and concepts. Throughout this paper, I use feminist criticism to take a closer look as to how women are portrayed in the two films, Bombshell, and 9 to 5, which are decades apart, and see how women have been treated in the workforce versus men. I then use identification to discover how these films …

Bim Immersion Cube, Cory Krok

Construction Management

The construction industry has become one of the largest professions to struggle with effectively implementing technology. As the industry heads into the future, more and more technology will be needed to increase efficiency and reduce cost. Cal Poly, one of the leading universities for industry recruitment, needs to teach the new generation of builders to be able to implement BIM/VDC into the industry. In this project called the BIM Cube, the overall goal is to give Cal Poly students a better understanding of model coordination and clash detection. This paper outlines the preconstruction services required for the eventual construction of …

Cal Poly Rodeo Observation Deck, Timothy Smith

Construction Management

This senior project was designed to help continue the winning tradition that the Cal Poly Rodeo program established in 1939 with a new observation deck for the practice arena. The major steps taken to complete this project were design, fundraising and construction. The total area of the deck is approximately 1,100 square feet and includes connections to an ADA approved ramp and multiple staircases. This is a landmark project for the Cal Poly Rodeo program and will assist them in keeping the winning Mustang tradition alive.

Residential Seismic Retrofit Cost For Home Located In Tustin, California, Sara Clark

Construction Management

Seismically retrofitting a residential home not only protects the homeowner, but also helps them prepare for the future. Needless to say, many older homes are not up to the 2018 International Residential Code. As a result, many owners are uninformed about how much it will cost to retrofit their home and what changes will have to be made. The solution for this is determining a cost per square foot ratio that will help homeowners calculate an estimate for the retrofit of their home. Additionally, it is important to break this cost down into what specific changes need to be made. …

The Relationship Between Bim And Electrical Prefabrication, Donald J. Lipsey

Construction Management

Recently, with the help of Building Information Modeling, prefabrication has become popular amongst electrical subcontractors. This report dives further into the relationship of the two counterparts and analyzes what allows the relationship to be successful. Currently, little information has been published regarding how Building Information Modeling and electrical prefabrication play off of each other. This report serves to provide information to electrical subcontractors that are either looking to start prefabricating or further their prefabrication methods. Analytical methods used consist of online research combined with interviews from three different people at three different electrical subcontracting firms. All interviewees hold different job …

Construction Management Spanish Language Class, Jordan Stephen King

Construction Management

Some research was done by past Cal Poly students into the industry, faculty and student desire for a Spanish Language class through multiple surveys. The results indicated that all parties agreed that a Spanish Language Construction Management class would be beneficial to add to the curriculum. In this project a student at Cal Poly was tasked with creating a Construction Management Spanish Language Class. The deliverables for this project are to provide the Construction Management department with a syllabus, course schedule, thirteen PowerPoints for use as lecture material, thirteen activities for students to apply what they have learned, and thirteen …

Consumption Of Single-Use Plastics By A Commercial Construction Firm: A Case Study, Christian Michael Dumas

Construction Management

Most construction sites utilize single-use plastic bottles because they are easy to distribute and guarantee fresh, clean drinking water. The number of bottles consumed on a site is usually an unknown quantity and is not a waste center that is commonly focused on. This case study outlines a mid-sized construction company’s rate of consumption of single-use plastic bottles. This study details the specifics of the project including size, type, value, and number of workers onsite. The information was gained through working closely with an onsite contact in a management position. The range of focus has been narrowed to only the …

Student Mentorship: An Essential Practice, Jonathan E. Ott

Construction Management

As an industry that relies heavily on strong relationships, contractors must learn to be effective communicators. At California Polytechnic State University, San Luis Obispo (Cal Poly SLO), there are several majors that provide students with a peer mentorship program; however, the Construction Management Department lacks one of these programs. Previous research conducted by Construction Management students at Cal Poly SLO revealed a significant demand for peer mentorship relationships (Gauna, 2017). The purpose of this paper is to determine what logistical approaches should be initiated to provide students with this valuable resource. This research was conducted by utilizing a nine-question survey …

Building For Wellness - Healthy Building Course For Cal Poly Slo Cm Department, Lindsey Pierson

Construction Management

Construction Management programs across the country focus on educating students about the main segments of the construction industry, however, there is not courses that allow students to affiliate themselves with sustainable, healthy building practices. This senior project created the opportunity for students to learn about the rising segment trend of healthy building in construction. Students will be informed about what healthy building is and how it should be implemented into the construction and design process. Topics will focus on discussing hard and soft building components that negatively affect building occupant health and performance, as well as how each component can …

Case Study: Google’S Unique Canopy Styled Construction, Ray A. Cuevas

Construction Management

In today’s rapidly changing world, builders are pushing to implement more sustainable practices and incorporate innovative techniques to integrate green practices into their structures. One of the latest examples of this push towards sustainability is seen in Google’s new headquarters, Charleston East located in Mountain View, California. Combining their widely known mission to provide a positive work environment for their employees with their passion to be more environmentally friendly, Google has set out to create a Living Building with LEED Platinum certification. In order to accomplish this Google has collaborated with Bjarke Ingels Group, Heatherwick Studio, and Hathaway Dinwiddie. The …

Design And Pre-Construction Services For An Outdoor Patio And Pergola, Gavin M. Griffin

Construction Management

Planning a project in any industry is one of the most import steps of the process. In the construction industry, the quality of work completed during the preconstruction phase of a project can be the difference between a successful and unsuccessful project. No one step is more important than the other. This paper outlines the process of designing an outdoor pergola with a permeable paver system as well as providing pre-construction services. First, the design of the structure was created in collaboration with a local non-profit to ensure both feasibility and desirability for both parties. Next, a quantity take-off was …

Kentucky St. Fence: 3d Model, Price Estimate, And Construction, Andrew Gordon Shafer

Construction Management

This project consists of the design, estimate, and rebuild of a residential fence. The house is located on Kentucky street in San Luis Obispo, California. The project was completed by two Cal Poly Construction Management students, Andrew Shafer and Michael Cerone, during the spring quarter of the 2020 academic school year. These students will be referred to as “the builders” throughout this paper. The beneficiary of the fence was a local San Luis Obispo woman, who lives on the same street as Michael. Michael walked past the beneficiary’s house every morning, and noticed that the backyard fence was in poor …

A Case Study On Achieving Living Building Challenge Certification On The Ucsd Triton Project, Grayson Farnham

Construction Management

This paper consists of a case study conducted on the UCSD Triton Pavilion project, In San Diego, California. The general contractor on this project is PCL Construction in contract with LMN architecture. The case study evaluates the strategies proposed to help this progressive design build project achieve a Living Building Challenge certification and the costs that would be associated with such implementations. Research and communication with integral employees from PCL Construction helped identify key strategies that ultimately caused the project to not pursue LBC certification and opt to choose a LEED platinum certification instead. In summary the size and scope …

Difficulties Posed And Overcoming Challenges In Modular Construction: A Case Study, Matthew W. Meehleis

Construction Management

The modular construction delivery method presents specific challenges that other construction delivery methods often do not. These challenges are present in all parts of the delivery process, including the design, pre-construction, fabrication, shipping, and assembly onsite. These challenges often create reluctance to go the modular delivery method. To understand the modular sector requires an understanding of how successful modular companies overcome these challenges. Qualitative interviews with experienced modular builders were conducted to gain an understanding how they overcame these obstacles, grow, and eventually run smooth and successful projects. Experience gained from facing these challenges help to aid in solving new …

San Luis Obispo Botanical Garden Children’S Garden Shed, Javier Santiago

Construction Management

The San Luis Obispo Botanical Garden (SLOBG) is located on the California’s Central Coast. The garden consists of a total of 150 acres within El Chorro Regional National Park. This project arose because of a shortage of storage within the Botanical Garden grounds. This project specifically aimed to improve the children’s garden section’s storage space. Before the project took place, there was no storage space located within the children’s garden. Preconstruction coordination started in the Fall of 2019. Shortly after, design of the storage space began. Before construction of the storage shed could start, the project site was graded to …

The Effects Of Covid-19 On The Commercial Construction Industry In California: A Case Study, Emily G. Bohannon

Construction Management

As a result of the COVID-19 pandemic, construction companies across California have been forced to quickly adapt to new protocols and regulations. Since certain areas of California have been more impacted by the pandemic, construction companies in those counties have been forced to comply with stricter coronavirus guidelines. Between the regions researched in this case study, the Bay Area has been affected the most by COVID-19 shutdowns and regulations. Then, Los Angeles County and San Diego County, which faced similar restrictions. The least restrictive area to build during the pandemic is the Central Valley, where there were less reported cases. …

Supply Chain Management: Fragmented Adoption In Practice, Tayler J. Yoshimura

Construction Management

Every day the construction industry develops new ideas and theories toward innovation in increased efficiency and quality for its projects. One method is supply chain management, which focuses on the relationships between partnerships along the supply chain. The theory was first developed in the manufacturing industry and this paper will highlight the reasons behind its fragmented adoption in the construction industry. The overall supply chain typically contains short supply chains that are dismissed upon project completion. Some companies have partially adopted the theory into their work practices but has been unable to fully adopt the theory as a whole. There …