Digital Commons Network^™

Shrinkage Cracking In Concrete Tilt-Up Construction, Stewart Hooks, Jack Robinson

Architectural Engineering

The purpose of this project is to investigate a particular, undesirable cracking pattern in concrete tilt-up panels that, until now, did not have a known definite cause. The cause of this cracking pattern is hypothesized to be due to shrinkage restraint of the concrete panels. The cracking under investigation occurs at the bottom corners of the Tilt-Up panels, suggesting that the base of the panel is restrained from shrinkage. This project models various components of Tilt-Up Construction that have potential for restraining the panels from shrinking. This project consists of the following main components.

The first aspect of this project …

Mt Carmel Shade Structure, Julian Reyes, Sonny Moraga, Adam Maclean, Christopher Carter

Architectural Engineering

A team of for students designed and constructed a shade structure for a local church and day care center. The group was responsible for developing a design which addressed the needs of the congregation as well as the needs of the toddler day care center. The team developed a steel framed scheme with a panelized metal roof which provided a long lasting solution and minimal maintenance costs.

"Rusty" The Mustang, Jack L. Tenley, Ryan Llamas

Architectural Engineering

No abstract provided.

Wheelieking Trainer Project Report, Harold Hall Iii, Nathaniel Fox, Thomas Niemisto

Biomedical Engineering

In this report we will detail the design and implementation process of the WheelieKing Trainer project, a device that helps people learn how to do wheelies on a bicycle by preventing backward falls. Formal project requirements are specified, followed by the ideation and iteration process to meet those requirements. The components and methods used to create the device are described in detail. The results of the development process and usage test results of the device are included. Appendices at the end of this report include references, supporting analyses, and project management and timeline details.

The Failure Of News Media Agenda-Setting On Cannabis, Amanda Cranston

Journalism

This study uses the agenda-setting theory (McCombs & Shaw, 1972, p. 176) to examine the various aspects of cannabis coverage in the news media and how news media have presented cannabis and the numerous debates over cannabis uses. Cannabis has been a focus of U.S. news media since the 19th century and has been historically misrepresented in national and local news media. More recently, the U.S. has seen a great shift in the public’s attitude towards cannabis. With more and more states legalizing medical and even recreational use, news media are surging to meet the demands of its publics, even …

Promoting Beneficial Social Media Use In Lonely College Students With Film, Francesca P. Ricapito

Journalism

This study explores the relationship between loneliness and approaches to social media in relation to college students at California Polytechnic State University in San Luis Obispo. Understanding why and how individuals engage with social networks can provide avenues into which they can establish online habits that are beneficial to their overall wellbeing. Qualitative data was gathered from interviews with two members of faculty and staff as well as four students, their responses recorded and interpreted as an essay film. Respondents expressed the need for awareness and mindfulness when approaching social media by periodically assessing their own activities and feelings while …

Mitigation Of Corrosion Under Insulation (Cui) Of Carbon Steel Of Different Insulating Materials: A Literature Review And Testing Analysis, Michael Alexander Lowes

Materials Engineering

Equipment often found in refineries may be enveloped in insulation and weathering jackets to maintain internal processing temperatures. In many cases moisture from the environment will penetrate the weathering jacket and infiltrate the insulation, leaching corrosive ions to the surface of metal equipment, effectively creating a corrosion cell. The goal of this project is to investigate different insulating materials for their ability to inhibit corrosion under insulation (CUI). The inhibiting mechanism utilizes water ingress that leaches ions from the insulator to bond with the surface metal and create a passive layer, inhibiting any further corrosion. This study will follow ASTM …

A Comparison Study Of Two Synthesis Methods For Polymer Of Intrinsic Microporosity 1 (Pim-1), Conor S. Perry

Materials Engineering

Polymers of Intrinsic Microporosity (PIMs) are an emerging polymeric material class for molecular sieving applications. This study focuses on PIM-1, an alternating copolymer of 5,5’,6,6’-tetrahydroxy-3,3’,3,3’-tetramethyl-1,1’-spirobisindane and tetrafluoroterephthalonitrile synthesized via nucleophilic aromatic substitution. PIM-1 been widely studied as a gas separating material and filtering membrane, but in this case, it is studied as a battery separator material. PIM-1’s microporous (pore diameters less than 2 nm) structure allows smaller favorable ions to transport while preventing larger ions and compounds from transporting. Two synthesis methods, round bottom flask synthesis and ball mill synthesis, of PIM-1 are compared to see any improved characteristics. The …

Cpu Db Data Visualization, Ruchita Patel, Marek Moreno

Computer Engineering

Given the CPU database from Stanford, we wanted to create something that portrayed the data in a more visually pleasing way. The CPU database website wanted a web page that would allow users to create graphs based on the processor data from the database. The web page would allow users to select different data from the database and create the graphs they wanted to gain insight into the decades of processor data.

Ping Pong Trainer, Aaron Atamian

Computer Engineering

This is a ping pong trainer. It shoots out ping pong balls to red targets using computer vision techniques.

Design Of Process Improvements To Increase Field Work Efficiency At Webcor Concrete Group, Fiona Blackburn

Industrial and Manufacturing Engineering

This study set out to analyze and improve field work efficiency at Webcor Concrete Group, a subcontractor working on a new housing project at the Cal Poly, San Luis Obispo campus. Specifically, they would like to access their performance in regards to end-of-break to back-to-work time and the 30-30 rule, which states that everything a field worker needs should be accessible within 30 seconds or 30 feet. The problem statement is that Webcor wishes to utilize their field hours 5% more efficiently through a study of current shortcomings and recommended improvements. A review of the literature generated process improvement ideas …

Design Of An Improved Toolbox And Connex For Webcor Builders, Veronica Ana Valley, Jamie Mari Kusumoto

Industrial and Manufacturing Engineering

Webcor builders asked the Senior Project team to create a design of an organized job box on Solidworks that improves worker efficiency, improves jobsite organization, and limits financial losses, which are common tool-related issues for the company. As a group, the members analyzed the job box current situation using multiple perspectives to create two designs, one streamlined by each project group member. The project group developed each of the designs based on a current state analysis in which we analyzed the job box, simulated finding tools to create multiple motion studies, collected worker feedback, conducted an ergonomic analysis, conducted a …

Redesign Of Good Karma Bike’S Facility Layout And Bike Storage Process, Ryan Phillip Ogan, Derek Chung, Tommy Chang

Industrial and Manufacturing Engineering

Good Karma Bikes is a non-profit organization that services and restores bikes that customers bring into the shop. Good Karma Bikes has plans for a dramatic increase in storage capacity for the next few years. Good Karma Bike’s warehouse area is currently overflowing with bikes due to the large increase in demand. A redesign of the warehouse layout is needed to handle the increase of incoming bikes and to improve product flow through the space. The project team’s objectives are to:

• Improve accessibility and reduce time it takes to unrack a bike
• Increase space utilization by improving bike storage capacity …

Design Of Material Flow And Tracking System For Supply Chain And Logistics: E. & J. Gallo Winery – Modesto Campus, Joshua Balland, Angela Mariani

Industrial and Manufacturing Engineering

E. & J. Gallo is a winemaking company located in Modesto, California. Our group was assigned to measure and analyze E. & J. Gallo’s current state process for their 5-Buggies (transportation trailers) to find key areas of inefficiency. After analyzing their current state process, we designed a more efficient flow of materials for the 5-Buggy system within the Automatic Train Loading (ATL) station and found an optimal solution for tracking the 5-Buggies on the Modesto campus. Our project started with preliminary research on fleet management, material management systems, and tracking methodologies. Once these areas of research were fully understood, our …

Design Of A Process To Implement An Annual Community Fundraiser For Sprout Up, Katherine Lynette Phillips, Kimberly Nicole Walter

Industrial and Manufacturing Engineering

Sprout Up—in San Luis Obispo—is currently a non-profit organization that teaches free environmental science education to first and second graders around the San Luis Obispo area. Due to recent circumstances, Sprout Up will soon be losing its non-profit status, and therefore they will be losing their funding as well. Their problem is that they need a stable annual fundraiser that will help the organization continue to provide free services to local elementary schools as a Cal Poly club rather than a non-profit. Multi-criteria analysis techniques were used to determine what would be the best solution to their problem and found …

Reusable Container System Optimization For Smart Cities, Aubrey Gail Sloan, Lukas James Pinkston, Andrew James Seaman

Industrial and Manufacturing Engineering

Federal and local governments are investing in methods to discourage use of disposable containers in order to reduce waste generation and protect the environment. In this project we propose the use of reusable takeout food containers as a replacement for disposable takeout food containers. Reusable takeout container systems may use barcode or RFID (radio frequency identification) technology to track and manage the distribution, collection, cleaning, and end-of-life recycling of reusable takeout food containers. Such systems will require the use of container collection bins. The design and optimization of a network of container collection bins is the topic of this project. …

Design Of A Decision-Aiding Model Between Subtractive Manufacturing And 3d-Printing, Tuan Minh Ryan Pham, Colton Harrison

Industrial and Manufacturing Engineering

3D-printing is becoming more and more widely used in industry. As this happens, manufacturers are becoming unsure of when to use this new technology and when to trudge on with subtractive (conventional) manufacturing processes. Subtractive manufacturing processes are well-established within many manufacturing companies due to its high efficiencies and low costs. However, 3D-printing offers a greater level of customization, can be automated, and can easily have designs transferred via computer files. Each method has its respective advantages, however, each one also has its downfalls. Subtractive manufacturing produces unnecessary waste, is limited from creating certain geometries, and requires a skilled laborer …

Golf Club Prototyping And Design For Spin Rate Tuning, Cole Nygren, Jordan Wright, Jesse Yap

Industrial and Manufacturing Engineering

The aim of this project was to design a golf wedge capable of increasing backspin for the amateur golfer. This was accomplished by embedding a metal lattice structure behind the clubface to allow the face to elastically deform slightly upon impact. This would increase contact time between the club and ball. The mechanism of spin generation was discussed and the relationship between contact time and spin rate was established. The design was enabled by using additive manufacturing, which allowed for the generation of a metal lattice structure. An appropriate control and prototype were designed to minimize run time and material …

Manufacturing Process And Product Design For Mass Production Of Environmentally-Friendly Fishing Lures And Weights, David Ichlokmanian, Justin Jake Bert

Industrial and Manufacturing Engineering

The current industry standard for the manufacture of recreational fishing tackle uses lead-based weights and PVC or silicone-based lures. Both materials have serious negative effects on those who handle these products, waterfowl, fish, and other animals that may consume this discarded tackle. The goal of this project is to find and design an environmentally safe process and product alternative for this industry. To do this, we researched a large amount of viable safe materials for weights and lures and used decision matrices to decide on the best one. We found that brass would be the most suitable alternative and created …

Addressing The Existence Of Overcrowding In The Cal Poly Rec Center Exercise Rooms, Josue Alvarez, Robert Hemphill

Industrial and Manufacturing Engineering

Cal Poly’s Rec Center is a facility that has been extremely popular among students ever since its initial creation many decades ago. Despite its popularity being a positive quality in most ways, it does ultimately yield a certain issue for the users of the facility; the issue of overcrowding. This senior project aimed to analyze the problem of overcrowding at the Rec Center and improve upon its most critical areas of impact. Ultimately, we identified the Rec Center’s exercise rooms as the most impacted area, with the issue of equipment unavailability being the largest factor. Thus, we designed alternative equipment …

Design Of Standard Operating Procedures For Concrete Delivery And Pour Data Collection And Analysis, Andrew Willard, Mitchell Wilhelmsen

Industrial and Manufacturing Engineering

Webcor Concrete Group (WCG) is a self-perform subsidiary of Webcor Builders, a large general contractor in the state of California. Inefficiencies plague the construction industry, resulting in Webcor reaching out to the Cal Poly Industrial and Manufacturing Department and its students for help. The opportunity addressed in this report centers on a lack of concrete pour data collection. This gap results in a struggle to defend against, or pursue, backcharges with their concrete suppliers regarding additional labor costs or wasted material. The project objective is to provide WCG with a baseline data collection system and procedure, leading to increased back-charge …

Carbon Fiber Monocoque Chassis Platform For Formula Sae And Formula Sae Electric Race Cars, Ford Eimon, Michael Gonzalez, Michal Kramarz, Nathan Powell, Kevin Ziemann

Mechanical Engineering

No abstract provided.

Preliminary Investigations Into Selective Laser Melting, David Takeo Otsu

Master's Theses

Selective laser melting is a promising metallic additive manufacturing process with many potential applications in a variety of industries. Through a gracious donation made by Lawrence Livermore National Laboratory, California Polytechnic State University received and installed an SLM 125 HL selective laser melting machine in February 2017. As part of the initial setup effort, a preliminary machine verification study was conducted to evaluate the general print quality of the machine with default parameter settings. Coincidentally, the as-printed microstructure of SLM components was evaluated through nil strength fracture surface examination, an alternative to conventional polish-and-etch metallography. A diverse set of components …

Implementing Net Zero Energy Into The Construction Innovations Center, Marlo Arleen Castro

Construction Management

As the environmental status of our planet declines, it is becoming more and more important for the construction industry to adapt. Leadership in Energy and Environmental Design (LEED) is becoming an unspoken requirement for all new and tenant improvement construction, and now, with the goal of Net Zero Energy (NZE) for all new commercial buildings by 2030, NZE is becoming the way of the future. As of late, California Polytechnic State University in San Luis Obispo (Cal Poly) has made grand efforts to retrofit several of the older buildings on its campus in order to achieve LEED certification. One of …

Preconstruction Services For The Modular House, Trevor Daniel Houghton

Construction Management

The "Modular House", originally named for its composition of 8x8x8 foot steel framed modules, has experienced a rich history of tenants, additions, and tourism. This structure was one of the first to be erected in California Polytechnic’s Poly Canyon. After many great years as a residence and iconic structure the house was ultimately abandoned in 2010. Since then, the building and the canyon have seen increased vandalism and weathering backed by minimal maintenance, resulting in unsafe conditions for the general public. Our mission was to allow this structure to be enjoyed by the public while highlighting its initial architectural features. …

Camp Ocean Pines Aviary Extension, Matthew R. Stephens

Construction Management

This paper describes the construction process of an additional 192 SF storage area for an existing Nature Center, along with a new 1000 SF deck around the entire structure. The scope of work included the excavation and pouring of concrete piers and stem walls, framing of the subfloor, shear walls, roof, and deck, electrical rough-in and finish, roofing system, windows, doors, insulation, drywall, and decking. All work on this project was managed by the author, and construction was done by the author, subcontractors, local hires, and volunteers. Construction of the project took place between December 2016 and June 2017, and …

Case Study On Virtual Reality In Construction, Kyle Eugene Haggard

Construction Management

Virtual reality has evolved into a practical technology that has recently been introduced across many different industries. In the construction industry alone, the innovative tool has started to show its worth by limiting rework, time savings, and identifying design flaws. This case study outlines the goals, benefits, and challenges for virtual reality in construction as it relates to BNBuilder’s Spectrum/Vertex project. Due to the infancy of the technology, suggestions were collected from the interviewees and discussed in the subsequent paragraphs. The information for this case study was collected from: phone call interviews from BNBuilders’ field and office employees, the vice …

Quality Assurance In The Buyout Phase Of The Commercial Sector Of San Francisco, Stephen Chase Johnson

Construction Management

The “buyout” phase in terms of construction management is a transitional phase in construction that is integral to the overall success to a construction project. When done properly it can lead to a smooth and efficient construction phase, and if done poorly can lead to major setbacks of all variety. Quality Assurance measures are a great way to ensure that this process is done in a complete way so as to avoid the negative effects of a poorly executed project buyout. As technologies such as BIM (Building Information Modeling) grow the buyout process has become more involved and exact. Technologies …

Case Study Analysis Of Improving Productivity Rates For Self-Perform Concrete, Johnny Mcdermott

Construction Management

Productivity is one of the most important aspects of a successful construction project, especially if the work is self-performed and not sub-contracted out to another contractor. Usually the success of a project is directly correlated to how well the production has been throughout the course of the job. Often when a project manager notices their job is not doing well and not making their target profits or man-hours, productivity is usually the answer to that problem. This paper will examine the different ways and methods of tracking production that was used by Overaa construction. The focus of this study is …

Design And Construction Of A Corrugated Metal Roof For Rebuilding Together In San Jose, Ca, Zachary Thomas Pollard

Construction Management

This paper will examine the design development, estimation, and construction of a corrugated metal roof for Rebuilding Together, a nonprofit in San Jose, CA. The contents herein discuss the multitude of steps required to see a construction project from its inception to its completion. Beginning with its schematic design, the project went through many revisions as the conceptual design was modeled in a 3D modeling program called ARCHICAD. Once modeling was complete, the material required to completed the project was taken off using four different material sets – estimates were then complied for each of these material sets and sent …