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Articles 1 - 30 of 60
Full-Text Articles in Engineering
Subway Rail Car Filter Sampling Tool, Brian Hong, Julia Pollard, Philip Ybarra
Subway Rail Car Filter Sampling Tool, Brian Hong, Julia Pollard, Philip Ybarra
Mechanical Engineering
The following design report has been prepared by Team Slice for both Cal Poly’s Mechanical Engineering Department and Lawrence Livermore National Laboratory. This report provides an overview of the design ideation process of creating a subway rail car filter sampling tool. This cutting tool will take samples of HVAC filters from subway railcars in New York City, NY. These samples will then be used for processing in biological terror emergency response situations. This device will provide an easy, safe, and user friendly tool to cut filter samples. The current method of cutting is a pair of scissors or shears, which …
In-Bottle Wine Aerator, Kevin Kesler, Patrick Lowry, Paul Woolworth
In-Bottle Wine Aerator, Kevin Kesler, Patrick Lowry, Paul Woolworth
Mechanical Engineering
The proposal for Capitol Cultivators discusses and evaluates the development of an in-bottle wine aerator. It defines the problem and need for an aerator located inside the wine bottle. Additionally, it outlines requirements essential for an effective design and describes the engineering process that will be followed.
Trampoline And Bungee Fatigue-Test Machine, Andy Brock, Christopher D'Elia, Ryan Murphy
Trampoline And Bungee Fatigue-Test Machine, Andy Brock, Christopher D'Elia, Ryan Murphy
Mechanical Engineering
JumpSport, a Saratoga based recreational and fitness trampoline company, sponsored this senior project team towards the development of a fatigue-testing machine. The goal of this project was to iterate the previous machine JumpSport used for bungee cord, spring, and trampoline fatigue testing. Since minimal study had been conducted on these specific bungee cords, the fixture was designed to confirm the theoretical correlations for rubber and perform the final tests according to a strict protocol. Operating with a specific test protocol in mind will allow the data from multiple tests to be combined and analyzed statistically. With a design concept in …
Design Of An Automatic Wood Trimming Machine, Van Ho, Nicholas Maskal, Andrew Rutland
Design Of An Automatic Wood Trimming Machine, Van Ho, Nicholas Maskal, Andrew Rutland
Mechanical Engineering
This final design report, prepared for Sunrise Arts by the Cal Poly design team Mahogany Automation, details the year-long process in which the team of three engineering students designed and built an automated wooden -plank edge trimming machine that incorporates anti-jamming and continuous loading features. The team has examined current woodworking machines and features available on the industrial and commercial market, and used these as guides along with device requirements set by the project sponsor, Bruce Palmer. The focus has been on designing the simplest and most cost effective device that allows operators to make production runs of wooden slats …
Heat Transfer Experiment: Energy Conservation, Ben Ward, Brett Wallace, Ryan Waltman
Heat Transfer Experiment: Energy Conservation, Ben Ward, Brett Wallace, Ryan Waltman
Mechanical Engineering
This proposal, prepared for the Mechanical Engineering Department by the HTEC design team will redesign and replace the current energy conversion lab that is inaccurate and out of date. The team will evaluate methods of energy conversion, specifically using braking systems, as well as existing labs in order to design an accurate and relatable experiment for this lab. The project team will work with Professor Kim Shollenberger in order to design an experiment that demonstrates energy conversion through the first law of thermodynamics while utilizing a common device that is practical in student’s lives. The final result of this project …
Peripheral Artery Catheter Tracking System, Chris Blecher, Michael Lashore, Nhan Le
Peripheral Artery Catheter Tracking System, Chris Blecher, Michael Lashore, Nhan Le
Mechanical Engineering
No abstract provided.
Rifle And Shotgun Recoil Test System, Benjamin Canfield-Hershkowitz, Trevor Foster, William Meijer
Rifle And Shotgun Recoil Test System, Benjamin Canfield-Hershkowitz, Trevor Foster, William Meijer
Mechanical Engineering
No abstract provided.
Sodhana Environmental - Final Design Report, Eric Taylor, Corissa Bellis, Cody Perez, Cameron Zeller
Sodhana Environmental - Final Design Report, Eric Taylor, Corissa Bellis, Cody Perez, Cameron Zeller
Mechanical Engineering
A fully designed cost-effective, sustainable, toilet for the developing world.
Low-Cost Scheffler Solar Concentrator For The Developing World, Darren Sholes, Jason Morgan, Nicholas Fuller
Low-Cost Scheffler Solar Concentrator For The Developing World, Darren Sholes, Jason Morgan, Nicholas Fuller
Mechanical Engineering
This report will outline an approach to design, test, and build a low-cost Scheffler solar concentrator to be used for safer, sustainable and cost effective cooking in the developing world. The function of Scheffler concentrators and a proposed method to create one in an economic, environmentally conscious manner is summarized. If successful, the design will be presented in a way that is readily and freely available to anyone in the world. The authors have examined existing technology and researched the availability and cost of different materials. Analysis was performed in order to verify the feasibility of the different design ideas …
Otto - The Wall Driving Platform, Cameron Venancio, Eric Mar, Kelvin Lei
Otto - The Wall Driving Platform, Cameron Venancio, Eric Mar, Kelvin Lei
Mechanical Engineering
A robotic wall-climbing robot.
Automated Foosball Table Year 1: Final Project Report, Juan David Gutierrez-Franco, John Inlow, Jesse Graham, Larry Huang
Automated Foosball Table Year 1: Final Project Report, Juan David Gutierrez-Franco, John Inlow, Jesse Graham, Larry Huang
Mechanical Engineering
This project is a first iteration of an automated foosball table designed and created using servomotors provided by Yaskawa to create an interactive tradeshow display where guests can play against the algorithms developed in the PLC (programmable logic controller) controlling the servomotors. There will be a second iteration of the project done by a different team directly following this one. The motion components were selected with the intent to be able to surpass the reaction times and speeds of expert human players. There are a total of eight servomotors, four controlling linear actuators for translation of rods, and four controlling …
Prototype Device For The Detection Of Subsurface Peach Pit Fragments, Colby Lippincott, Hamilton Little, Rick Hayes, Elliot Wenzel
Prototype Device For The Detection Of Subsurface Peach Pit Fragments, Colby Lippincott, Hamilton Little, Rick Hayes, Elliot Wenzel
Mechanical Engineering
Peach pits can break during processing into several small fragments and are difficult to see and remove from the peach. Wawona Frozen Foods is asking for a fully designed, built and tested prototype that can detect these pit fragments with ease and speed. Our design uses an array of needles that puncture into a peach half. A pressure sensor measures the force on the needles and determines whether or not each needle hit the peach flesh or a pit fragment. The array of needles consists of 313 needles each with a diameter of 0.6 mm with a total array diameter …
Computer Controlled Vegetable Oil Fuel System, Joseph W. Souza
Computer Controlled Vegetable Oil Fuel System, Joseph W. Souza
Mechanical Engineering
No abstract provided.
A Finite Element Model Based On Coupled Refined High-Order Global-Local Theory For Static Analysis Of Electromechanical Embedded Shear-Mode Piezoelectric Sandwich Composite Beams With Various Widths, S.B. Beheshti-Aval, S. Shahvaghar-Asl, M. Lezgy-Nazargah, Mohammad N. Noori
A Finite Element Model Based On Coupled Refined High-Order Global-Local Theory For Static Analysis Of Electromechanical Embedded Shear-Mode Piezoelectric Sandwich Composite Beams With Various Widths, S.B. Beheshti-Aval, S. Shahvaghar-Asl, M. Lezgy-Nazargah, Mohammad N. Noori
Mechanical Engineering
In this study, a new theory for the accurate simulation of the shear-mode behaviour of thin or thick piezoelectric sandwich composite beams is developed. The effects of transverse normal stress and transverse flexibility of layers are considered in the development of the proposed formulation. In order to increase the computational accuracy, all kinematic and stress continuity conditions are satisfied at layer interfaces. Moreover, for the first time, both the electrically induced strain components and the transverse flexibility are taken into account in the proposed formulation. Despite the fact that the number of unknown mechanical parameters in this theory is only …
Twelve Days Of Christmas Mechatronic Display, Michael Beltran, Christine Hagerman, Katie Ruhm
Twelve Days Of Christmas Mechatronic Display, Michael Beltran, Christine Hagerman, Katie Ruhm
Mechanical Engineering
No abstract provided.
Workshop A - Implementing The "Design Your Process Of Becoming A World Class Engineering Student" Project, Steffen Peuker, Raymond B. Landis
Workshop A - Implementing The "Design Your Process Of Becoming A World Class Engineering Student" Project, Steffen Peuker, Raymond B. Landis
Mechanical Engineering
Many students come into an engineering program lacking a strong commitment to stay in an engineering program and to graduate with an engineering degree. For students to accomplish the challenging goal of graduating in engineering requires a strong commitment, and behaviors and attitudes to follow through that commitment. To strengthen the commitment of the freshman engineering students an innovative project has been developed. The project challenges students to develop their process to become a "World-Class Engineering Student". Having freshman engineering students design their individually tailored learning process as part of a semester long project in the setting of a student …
Implementing Team Based Learning In Freshmen Engineering Courses, Steffen Peuker, Jennifer Peuker
Implementing Team Based Learning In Freshmen Engineering Courses, Steffen Peuker, Jennifer Peuker
Mechanical Engineering
Team Based Learning (TBL) is a specific pedagogical tool that emphasizes collaborative learning. Oftentimes TBL is confused with group activities and other active learning strategies involving student teams. TBL is distinct because it follows a prescribed sequence of individual work and group work, and includes immediate feedback as well as peer evaluation. TBL is widely used in medical, pharmacy and nursing schools and the use of TBL in engineering education is growing. The advantages of using TBL in the class room include: (1) students are held accountable for individual (pre-class) and group (in-class) work. (2) The responsibility for learning shifts …
Student Industry Cooperation For The Development Of Thermal System Design Teaching Laboratory Equipment, Steffen Peuker
Student Industry Cooperation For The Development Of Thermal System Design Teaching Laboratory Equipment, Steffen Peuker
Mechanical Engineering
In higher education, hands-on undergraduate education using state-of-the-art laboratory equipment is important to meet the quality standards expected in the engineering profession. However, the development of modern engineering laboratories is not only time consuming, but also budget constraints can hamper the development of needed laboratories for instructional purposes as Bidana and Billo state: "Development of state-of-the-art engineering laboratories is becoming an increasing problem in the University environment. Due to the greater variety and increased complexity of much state-of-the-art hardware and software, the cost and cycle time for development and startup of a modern engineering laboratory can be excessive. This, together …
Incorporating Active Learning Into A Thermal System Publications Lecture, Jennifer M. Peuker, Steffen Peuker
Incorporating Active Learning Into A Thermal System Publications Lecture, Jennifer M. Peuker, Steffen Peuker
Mechanical Engineering
Many mechanical engineering departments offer a thermal system design (or similar) course for senior students. Some courses have a laboratory component, but many are a lecture only format. This paper demonstrates how active learning—through virtual labs, a semester long project, and in-class assignments—was incorporated into the lecture portion of a thermal system design course to enhance learning and provide the students a laboratory experience without a physical laboratory. These active learning ideas can also supplement the learning during lecture for those courses which have a designated laboratory time. Anecdotal evidence of the activities indicates that students were engaged and enjoyed …
Effect Of Multiple Choice Testing On Student Performance In An Introductory Engineering Course, Jennifer M. Peuker, Jennifer Mcferran Brock, Steffen Peuker
Effect Of Multiple Choice Testing On Student Performance In An Introductory Engineering Course, Jennifer M. Peuker, Jennifer Mcferran Brock, Steffen Peuker
Mechanical Engineering
This study aims to compare student performance on introductory engineering statics material by comparing the exam scores of students who are given both multiple choice (MC) questions and constructed response (CR) questions to see whether the type of exam question makes a difference in student performance and understanding. Seventy-five students in an introductory engineering course did either a MC version or a CR version of each statics problem, resulting in MC answers and a control group of CR answers to each statics problem. The students were also polled for feedback regarding their preferences of test question format at the end …
Pier Portal Ii, Misha Balingit, Cory Spieler, Aaron Jen
Pier Portal Ii, Misha Balingit, Cory Spieler, Aaron Jen
Mechanical Engineering
No abstract provided.
Drape Forming Machine, Adam Johnson, Will Schlosser, Brian Miller
Drape Forming Machine, Adam Johnson, Will Schlosser, Brian Miller
Mechanical Engineering
The goal of this project was to build a prototype machine that formed multiple sheets of debulked pre-preg OOA carbon fiber into a 2-foot long trapezoidal shape. The machine was required to do this process semi-automatically.
Stent Graft Blush, Vanessa Barrett, Thomas Matzinger, Mike Morelli
Stent Graft Blush, Vanessa Barrett, Thomas Matzinger, Mike Morelli
Mechanical Engineering
In order to better understand Type IV endoleaks (“blush”), the Cal Poly Senior Project team GraftTest has developed a blush evaluation system able to mimic several of the aorta’s environmental parameters. Capable of both pressure and flow rate control, this bench top system accommodates Medtronic’s wide range of abdominal and thoracic aortic stent grafts. Having researched endoleaks, stent grafts, and numerous other factors affecting stent graft blush, a system was developed with the aim of assessing and comparing the performance of Medtronic’s stent grafts with regard to blush. Furthermore, this system has been designed to provide reliable and repeatable results …
Bicycle Wheel Test Machine, Dylan Harper, Kevin Hom, Ross Williams
Bicycle Wheel Test Machine, Dylan Harper, Kevin Hom, Ross Williams
Mechanical Engineering
In recent years, the cycling industry has witnessed huge advancements in bicycle components and materials. The age old goals of speed and low weight are still present today, but the pursuit of these goals may be reducing the structural stability of various components integral to wheel performance, including the wheel hub bearings. These bearings are invaluable to bicycles but little is known about how the forces and loads applied to a bicycle affect the performance of these bearings. Broken axles and hubs are indicators of significant stresses within the hub, but little is known about how the resulting deformation affects …
Titan 130 Engine Aft-Mount, Woody Newell, Michael Haworth, Dylan Perry
Titan 130 Engine Aft-Mount, Woody Newell, Michael Haworth, Dylan Perry
Mechanical Engineering
No abstract provided.
Rapid Decompression Containment System, Evan Domingue, Michelle Rudney, Daniel Trees
Rapid Decompression Containment System, Evan Domingue, Michelle Rudney, Daniel Trees
Mechanical Engineering
Cal Poly students; Evan Domingue, Michelle Rudney and Daniel Trees; are working with General Atomics Aeronautical Systems, Inc. (GA, ASI) and engineer John Wilcox to complete a senior project. The senior project is focused on finding a solution to meet the requirement set forth in MIL-HDBK 1791 4.2.5.2 for rapid decompression which requires cargo items to be designed with pressure relief devices or to be configured for air shipment as to prevent any part from becoming a projectile in the event of catastrophic loss of aircraft cabin pressure. The goal of this project is to design a safe, cost-effective, and …
Ir Imaging Chip Fixturing System, Curtis Wagner, Scott Solomon
Ir Imaging Chip Fixturing System, Curtis Wagner, Scott Solomon
Mechanical Engineering
No abstract provided.
Rapid Tool Heating, Jason Chi, Bobby Dodge
Rapid Tool Heating, Jason Chi, Bobby Dodge
Mechanical Engineering
Quatro Composites creates various molded parts for an array of industries. They are seeking to improve their thermoplastic molding process by decreasing the amount of time to heat up the steel tool that molds the thermoplastics. Currently, it takes approximately 1 hour to heat up their 120 pound steel mold from room temperature to approximately 700°F. The goal of this project is to create an optimum heating method that will minimize that heating time to about 20 minutes or less. It is critical for the stakeholders (Quatro Composites) to have a faster heating time in order to increase their production …
Bocce Ball Launcher: An Adaptive Bocce Ball Device, Jake Deschamps, Megan Hughes, Thomas Lynch
Bocce Ball Launcher: An Adaptive Bocce Ball Device, Jake Deschamps, Megan Hughes, Thomas Lynch
Mechanical Engineering
This report details the adaptive bocce launching device created by Team B.A.L.L. and theprocess of designing, building and testing it. The final design was a wirelessly controlled pneumatic catapult capable of propelling a bocce ball such that it would land fifteen feet away and roll the length of the wheelchair accessible bocce courts located at the Colony Park Community Center in Atascadero. A wide variety of users are supported because the system is controlled by a single button which can be actuated by the user’s hand, forearm, head or anything else they are able to move. The catapult allows the …
Autonomous Collision Avoidance, Thomas Stevens, Elliot Carlson, Ian Painter
Autonomous Collision Avoidance, Thomas Stevens, Elliot Carlson, Ian Painter
Mechanical Engineering
A steering controlled, autonomous collision avoidance system has been developed by California Polytechnic State University. This system represents a step in the direction of fully autonomous driving, while allowing the driver to maintain control of the vehicle during normal driving conditions. In the case of an imminent collision, the system removes control of the vehicle from the user and autonomously steers around the obstacles. The final system is able to avoid two static obstacles with a 95% pass rate and one moving obstacle with a 50% pass rate. With full scale, fleet wide, implementation of this system it is expected …