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Rebranding the Cal Poly Writers\u27 Collective
Get PDFFor my senior project, I rebranded the Writers’ Collective, Cal Poly’s creative writing club. This process included collecting feedback from the club members and creating both physical and virtual deliverables. I designed a new logo, then created a brand based around it. Using these, I then designed merchandise featuring the logo, such as stickers, and also designed a new template for the club newsletter. To ensure the rebrand is effective, I created a guide on best file practices and uploaded this, as well as all the designs I had created, to the club’s Google Drive, so that future officers can access not only the logo and the merch files, but have step-by-step instructions on how to maintain the quality of these files and the integrity of the brand
Effects of Release Materials and Temperature Ramp Rates on the Surface Finish of Carbon-Fiber Composite Components
Get PDFToray Advanced Composites is interested in improving their carbon fiber reinforced polymers (CFRP) manufacturing process by enhancing their control on the amount of surface roughness for varied customer preference. Surface roughness of CFRP is important in post-production processes including coating, priming, and painting. This project seeks to determine the effects of three release materials and two temperature ramp rates on the surface finish of CFRP. The release materials used were Tooltech, FEP, and Frekote 770-NC. The two initial temperature ramp rates were 1°F/min and 2°F/min. Surface roughness was measured using a profilometer and analyzed using Ra values. Ra is an average of the absolute value of profile height deviations from a reference line. A larger Ra value corresponds to a rougher surface. The Ra values calculated for the samples and tool plate were compared to describe their surface roughnesses. The tool plate’s average Ra was 0.604 microns. In cure cycle 1 (CC1), Tool Tech, FEP, and Frekote’s average Ra values were: 2.93, 1.17, and 11.50 microns. Cure cycle 2 (CC2) had average Ra values of 2.89, 5.56, and 20.94 microns, respectively. After ANOVA analysis, it was found that only FEP samples possessed a smoother surface finish with a slower temperature ramp rate, while Tooltech nor Frekote saw no statistically significant change. FEP produced the smoothest surface finish in CC1 with an average Ra value of 1.174µm. Tooltech produced the smoothest surface finish in CC2 with an average Ra value of 2.889µm. Frekote 700-NC produced the roughest surface finish in both CC1 and CC2, having average Ra values of 11.506µm and 20.944µm respectively
Effect of Gamma-Ray Irradiation and Surface Scratching on the Passivation Layer of Stainless Steel Components in Single-Use Systems
No full textThe objective of this study was to determine the effect of several factors present in the manufacturing and distribution of type 316L stainless steel components used in drug processing, as these factors may harm the component’s passivation layer. Understanding this layer’s weak points is critical as its failure can result in component corrosion and lead to product contamination. The factors examined in this study are the processing techniques used by different manufacturers, exposure of components to gamma-ray irradiation, and the introduction of surface scratches. Gamma-ray irradiation was considered because single-use systems and their components are required to be irradiated to help sterilize them prior to use. Surface scratches were considered as it is believed that the components may come in contact and scratch each other during shipping. An experiment was devised where components from different manufacturers were either irradiated or non-irradiated and had scratches applied using different materials. These components were then subjected to accelerated aging and inspected for evidence of the passive layer’s failure in the form of corrosion products. Observations of corrosion products were compared between samples to investigate the impact each of these experimental factors played in the degradation of the sample’s passivation layer. Among the factors considered, stainless steel-scratched and control samples appeared to show corrosion products more ofte
San Luis Obispo Botanical Garden - Children\u27s Garden Observation Deck
Get PDFThis paper will explain the preconstruction process for an observation deck in the San Luis Obispo Botanical Gardens, specifically the children’s garden. The children’s garden is a subsection of the botanical gardens dedicated to educating children through outdoor learning. The San Luis Obispo Botanical Gardens reached out to the Cal Poly Construction Management department in need of a team to create an outdoor learning space. Four students were interested in the project and decided to pursue it. The team for this senior project is an interdisciplinary group consisting of 3 construction management students and 1 architectural engineering student. The team designed the deck to fit the needs of the botanical gardens. The project received donations from supporting alumni organizations in order to fund the deck\u27s construction. The project team communicated with industry professionals and suppliers to gather information for the estimate and material quantity take-off. The team also needed to permit the deck through the county permitting office. The project team encountered many hurdles throughout this project. Communication issues during the design and permitting phase of the deck resulted in rework and delays. In the end, the team delivered a preconstruction package for the construction of the deck
Dynamic Mechanical Analysis of Two Component Epoxy Crosslinking Networks After Solvent Exposure
No full textEpoxies are widely used as binding agents in industries where they may be exposed to a variety of solvents that could affect their crosslinked networks and change their physical properties. Irreversible changes to the cross-link network can be a cause of failure when epoxy-assembled composites are used in the field. Dynamic mechanical analysis (DMA) was used to observe changes in glass transition temperatures (Tg) for two different epoxies. These changes were correlated to the corresponding impact on their crosslinking networks. Samples were exposed to solvents and tested with DMA before and after solvent exposure over two weeks to investigate if changes to the epoxy properties could be determined using the aforementioned method. Water, dichloromethane (DCM), and xylene were selected as solvents and the epoxies were exposed to each solvent for an hour before being removed and allowed to age under ambient conditions. Dichloromethane had the most significant effect on the Tg for both epoxies tested. Boiling water was second followed by both xylene and water at room temperature. It is believed that the polarity, the molecular size, and temperature of each solvent affected its ability to penetrate into and swell or damage the crosslinking networks. Finally, all epoxy and solvent combinations showed some degree of recoverable mechanical properties suggesting mechanical changes were caused by a combination of reversible swelling and irreversible damage to the crosslinked network
Water Efficiency in Residential Homes in San Luis Obispo County
Get PDFSustainable building has reshaped the construction industry and has led to new innovations that have benefitted the human race. Water efficiency in buildings has become increasingly important to the U.S. Green Building Counsel (USBGC) for buildings to obtain a LEED certification. To obtain a LEED certification buildings are rated on a point system in which the building is rewarded points by being environmentally responsible and using its resources efficiently. There are nine categories of LEED points with water efficiency being one of them. This has led the construction industry to innovate new technologies that help conserve one of if not the most important resource on Earth, water. The construction industry has been moving more towards water efficient plumbing fixtures such as dual flush toilets, low flow showerheads and sinks along with energy star appliances. These new innovations have led to a decrease in residential homes average water use and have helped homeowners save money on their water and sewage utility bills. However, the implementation of water efficient fixtures in residential homes still has a lot of room to grow which can be seen right here in San Luis Obispo County
B.A.C.O.N. (Battery-Powered Autonomous Cart ConversiON) Autonomous Vehicle Design
Get PDFThe goal of our project is to convert an electric go cart into an autonomous testing platform. We must enable autonomous braking, steering, and acceleration with electro-mechanical systems. We began the project with ideation to create our initial design and have since received ample feedback from faculty, students, and our sponsor. With this feedback we were able to refine our preliminary ideas and produce a detailed design supported with ample analysis, research, and external advice. We have developed our project in four main subsystems: Steering, braking, acceleration, and emergency braking. Following, we procured, manufactured, and assembled all of our designed components with the feedback received from PDR and CDR. Upon completion of manufacturing and assembly, we began testing our predetermined specification list to ensure the project met the design goals. Next, outside of pre-existing cart problems, the testing verified our design met all of the specifications. Finally, we compiled all of our design, modifications, manufacturing, and testing into a comprehensive package which we plan to hand to the next group which will take over the project
Walking and Wheeling
Get PDFThis Statement of Work (SOW) is between the Walking and Wheeling Team, Dr. Michael Whitt, and Stephanie Northcote. The document outlines the posed problem, scope of the project, and the process to be taken to effectively arrive at a solution to the posed problem, in the specified timeframe
Solar Powered Electric Bicycle
Get PDFA solar-powered electric bike that is useful for college students
Electricity Pricing Prediction Using Computational Intelligence
No full textThe price of electricity can be very unpredictable as it is determined by many different factors including the usage at that time, weather, outages, location, and even the state of the economy. The ability to predict the price of electricity presents great value for both the consumers of electricity as well as the utility company themselves. All the factors in electricity pricing that were mentioned earlier add significant difficulty to this task. This prediction model can predict electricity prices while considering all these complex factors by using computational intelligence alongside a neural network processing past electrical pricing data to predict what the price will be in the future. This paper will differentiate itself from studies in the past by considering temperature data, a factor that has been an overlooked factor in the past and plays a large role in the transmission of electricity and in turn, the price of electricity