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Articles 361 - 390 of 524

Full-Text Articles in Operations Research, Systems Engineering and Industrial Engineering

Convertible High Heel Design, Mathew Caspari, Tyler Shelton Jun 2013

Convertible High Heel Design, Mathew Caspari, Tyler Shelton

Industrial and Manufacturing Engineering

Many women feel pain and discomfort when wearing high heels to certain events. This is a problem because it can lead to a variety of health issues. It would be beneficial and convenient if a woman could remove the heelpiece from her shoe while still wearing the same product. However, there is currently no popular high heels that can convert to a flat shoe on the market today. Our goal was to perform an in depth human factors analysis with regards to high heel use and formulate a solution to these problems. After reviewing literature, conducting a survey, and analyzing …


Thermal Characterization Of A System On Chip (Soc), James Gilstrap Jun 2013

Thermal Characterization Of A System On Chip (Soc), James Gilstrap

Industrial and Manufacturing Engineering

Electronics are getting more and more advanced. Companies are designing their product to be more powerful, but at the same time they are designing them to be smaller and more user friendly. Heat becomes a major factor with the limited amount of surface area. The objective of this project is to measure the junction temperature of three system on chips (SoC) under various loading conditions and their time constant. The junction temperature was measured based on the diode’s I-V linear relationship. Both calibration and measurement of the junction temperature were conducted for three different SoC packages. The measurement results can …


Reason-To-Reuse: A Sustainable To-Go Food Storage Container System For Restaurants, Ryan Christopher Labuda Jun 2013

Reason-To-Reuse: A Sustainable To-Go Food Storage Container System For Restaurants, Ryan Christopher Labuda

Industrial and Manufacturing Engineering

A food storage container (FSC), also known as a to-go box, is a very popular way for Americans to pick up food when in a rush and take it with them or store leftovers after dining. Some of the more popular materials that make up FSCs include Styrofoam, paper and plastic. These FSCs are meant for one time use and subsequently the majority end up as waste in their local regions. Reason-To-Reuse is a sustainable business that provides an alternative to the current model of disposable FSCs at restaurants by cutting down on waste. The objective of the Reason-To-Reuse project …


Design And Analysis Of A Materials Management System For Boeing Commercial Airplanes' (The Boeing Company) Metallic Raw Material Supply Chain With A Focus On Lead Time Manipulation And Corresponding Effects On Inventory And Cost, Henry Lu Jun 2013

Design And Analysis Of A Materials Management System For Boeing Commercial Airplanes' (The Boeing Company) Metallic Raw Material Supply Chain With A Focus On Lead Time Manipulation And Corresponding Effects On Inventory And Cost, Henry Lu

Industrial and Manufacturing Engineering

The purpose of this project is to identify the costs associated with an aggregation strategy run by Boeing Commercial Airplanes. In order to identify these costs, a rudimentary replenishment system must be designed for the supply chain due to the fact that there is currently no such system in place. This replenishment system will be used to create a model (created in Excel) to calculate the total annual costs of the system. The model must allow changes to some of the important inputs such as mill performance measures and lead times and report the resulting changes in the total annual …


Companion Pass Program, Andrew Toney Jun 2013

Companion Pass Program, Andrew Toney

Industrial and Manufacturing Engineering

At the end of each quarter the students of Cal Poly prepare to sign up for their classes for next quarter. This process is more difficult for seniors who must meet very specific requirements in order to graduate on time. Students can spend hours trying to find the “perfect schedule”, that one schedule that fits their personal schedule and their graduation requirements, while not over taxing themselves during that quarter by having too much class work. This Cal Poly explores the creation and implementation of an extra scheduling tool to address the weaknesses of the current scheduling system, PASS, and …


Bicycle Mounted Iphone 5 Case With Charging System, Patrick Goebel Jun 2013

Bicycle Mounted Iphone 5 Case With Charging System, Patrick Goebel

Industrial and Manufacturing Engineering

This purpose of this project is to design and manufacture a bicycle handlebar mounted case that will house Apple’s iPhone 5 and a charging system that utilizes a charge from a generator hub in the front wheel of a bicycle. The charging system and software for this project will be developed by an Electrical Engineering Graduate student. The case and charging system must be a self-contained unit that is weather-proof and aesthetically pleasing. It must allow the user to use all of the features of the iPhone 5 under a wide range of speeds. It must be adjustable between portrait …


Analyzing The Costs Of Different Energy Storage Systems For California Polytechnic State University, Christian Royer Jun 2013

Analyzing The Costs Of Different Energy Storage Systems For California Polytechnic State University, Christian Royer

Industrial and Manufacturing Engineering

The goal of this project was to analyze the different ways to release energy from an energy storage device into the grid to save money. This project was worked in conjunction with a Master’s of Science student. An entire year of Cal Poly’s energy usage was examined and multiple trends were observed about when the maximum amount of energy was used. These trends looked at the time of day, the day of the week, and season to see what would be the best way to release energy into the grid to save money. There were two different batteries sizes examined …


The Decision Process Of Transitioning From A 3-Axis To A 4-Axis Or 5-Axis Mill Machine, Andrew Van Cleve, David Sherman Jun 2013

The Decision Process Of Transitioning From A 3-Axis To A 4-Axis Or 5-Axis Mill Machine, Andrew Van Cleve, David Sherman

Industrial and Manufacturing Engineering

Companies are always looking for new ways to increase productivity and help the company save money. The way this is done is by researching new and more efficient ways to produce whatever it is the company is selling. Since there are always new technologies coming forward it can be difficult to distinguish which ones are viable and which ones are not. This paper looks at the decision of moving a company from a traditional 3-axis milling set-up to a 4-axis or 5-axis milling set-up. Through research and analysis this report will guide a company through the decision making process and …


Reducing Customer Wait Time And Improving Processes At Abc’S Atv Rentals, Thomas Allen Merrill Jr. Jun 2013

Reducing Customer Wait Time And Improving Processes At Abc’S Atv Rentals, Thomas Allen Merrill Jr.

Industrial and Manufacturing Engineering

This project serves to explore the system bottlenecks of a small, family owned ATV rental company. The main objective is to reduce the average time a customer spends in the system, focusing on customer wait time as well as other areas that can be improved. This was done by collecting time studies and inputting the values into simulation software, which was run to represent the current system as well as various other possible scenarios encountered by rental companies. While creating the simulation, adaptive techniques were incorporated into the simulation. These techniques aim to increase the durability and reusability of the …


Evaluation And Redesign Of Potting Shed For The Non-Profit Organization, Growing Grounds Farms, Adya Sinha, Julianna Levy Jun 2013

Evaluation And Redesign Of Potting Shed For The Non-Profit Organization, Growing Grounds Farms, Adya Sinha, Julianna Levy

Industrial and Manufacturing Engineering

Growing Grounds, a local nonprofit organization, operates as a fully functioning nursery in San Luis Obispo. Their planting facility is outdated and the process is inefficient. They have new funding available and need to determine if they should automate certain processes or improve existing methods. This report details the current process and presents two possible ergonomic solutions and the accompanying layouts and improvements. An analysis is conducted to determine which new layout is recommended for Growing Grounds based on their current production and revenue, and future recommendations are given.


Human Powered Helicopter: Spars, Jason Addy, Sterling Fuentes, Graham Garvin, Kenneth Girardin, Lipski Timonthy, Daniel Logue Jun 2013

Human Powered Helicopter: Spars, Jason Addy, Sterling Fuentes, Graham Garvin, Kenneth Girardin, Lipski Timonthy, Daniel Logue

Industrial and Manufacturing Engineering

Abstract

Neal Saiki, a Cal Poly alumnus, donated a human powered helicopter to the Cal Poly Aircraft Design and Construction Club in Fall Quarter 2012. To achieve the requirements of the Igor Sikorsky Human Powered Helicopter Competition, this senior project was tasked with reducing the weight of the load-bearing spars without changing geometry.

The aluminum spars were replaced with carbon fiber. The spars were designed to maintain the bending and torsional stiffnesses. Twelve sections of carbon fiber tubes ranging from 8 to 12 ft in length and 2" to 3" in inner diameter were made using pre-preg carbon fiber wrapped …


S&G Metal Fab Battery Tray, Matthew Nartatez Jun 2013

S&G Metal Fab Battery Tray, Matthew Nartatez

Industrial and Manufacturing Engineering

This report was written for the design of a battery tray and manufacturing process for S&G Metal Fab. The manufacturing steps of how to process the sheet metal to create the product are defined and documented in this report. This project began with constraints given by S&G and were all accomplished using coursework knowledge obtained as a manufacturing engineer student at Cal Poly San Luis Obispo. This report mainly covers parameters regarding the cutting, bending and, deforming of sheet metal to acquire the desired shapes and sizes. It also analyzes the costs that are associated with these processes and material. …


Reliability Analysis Of Low-Silver Bga Spheres Comparing Failure Detection Criteria, Briana Fredericks Apr 2013

Reliability Analysis Of Low-Silver Bga Spheres Comparing Failure Detection Criteria, Briana Fredericks

Industrial and Manufacturing Engineering

One of the challenges of solder joint reliability tests is estimating the time of failure of the solder joint. Failure criteria should be able to detect solder joint failure as early as possible, while minimizing the probability of false detection. The failure mechanism under study is cracks due to thermal fatigue. The most common method to estimate failure due to cracks is to monitor the resistance during testing, because solder imaging and cross-sectioning methods are destructive. Current industry failure criteria do not adequately demonstrate the relationship between the size of the crack and the resulting change in resistance. This project …


Application Of Assignment Problem Theory To Cal Poly's Week Of Welcome Program Presentation Schedule, Kevin T. Aban Mar 2013

Application Of Assignment Problem Theory To Cal Poly's Week Of Welcome Program Presentation Schedule, Kevin T. Aban

Industrial and Manufacturing Engineering

The Week of Welcome (WOW) is a part of Cal Poly’s Orientation Programs. One of the main objectives of WOW is to provide content to new students on a variety of different topics in the form of Awareness Presentations. The problem being addressed in this paper is that of assigning the orientation groups of incoming students to these Awareness Presentations so that they have a schedule that meets all of the necessary criteria. The most important of those requirements is schedule balance and flexibility for future use. This scheduling problem is solved through the use of operations research and binary …


Gyroscope Assembly Process Improvement Analysis, Ian Douglass, Juan Ulises Saucedo Mar 2013

Gyroscope Assembly Process Improvement Analysis, Ian Douglass, Juan Ulises Saucedo

Industrial and Manufacturing Engineering

The gyro is a fundamental portion of many assemblies that Company S, a directional drilling company, manufactures. The gyro assembly is a highly sensitive and complex process, and it was paramount to establish efficiency and quality guidelines to base management decisions. The first guideline succeeded by increasing throughput by means of a simulation using ProModel. Next, non-value and value added activities were identified through a value stream map. Lastly, a database was developed in order to capture high integrity quality control data, or key performance indicators, such as, throughput, first-pass inspection yields at every test performed, and defects found. This …


Implementation Of A Sustainable Project Management Methodology For Cal Poly Sae Baja, Theo Graziadei Mar 2013

Implementation Of A Sustainable Project Management Methodology For Cal Poly Sae Baja, Theo Graziadei

Industrial and Manufacturing Engineering

A lack of project organization manifested through unclear team goals, rush deliveries of materials, lost tools and materials, half days of effort due to improper planning, wasted design time, missed submission dates, lack of clear job positions at competition, and low competition scores. A process was created to properly manage the team and it was implemented through the use of various templates, examples, and calculation programs. Each deliverable received feedback from this project’s stakeholders and changes were reflected in the final process. The results were as follows:

Table 1: Summary of Results

Implement a sustainable project management methodology

Each step …


The Design, Testing, And Manufacturing Of A Pin Fin Extrusion Heat Sink, Arash Michael Mira Mar 2013

The Design, Testing, And Manufacturing Of A Pin Fin Extrusion Heat Sink, Arash Michael Mira

Industrial and Manufacturing Engineering

My senior project focuses on the design, testing, and manufacturing of pin fin extrusion heat sinks that are you used to cool simple electronic applications across a multitude of markets. Without the modern day heat sink, electronics that we have become familiar with throughout our everyday lives will cease to exist. I will design these heat sinks using Solid Works 3D CAD. I will then test the heat sinks using ICEPAK CFD software, where I will model the heat sink against a 5 watt application, inside of a cabinet that models the chassis of a computer. After receiving these results, …


Evaluation And Design Of Potting Production Process Improvements For The Non-Profit Organization, Growing Grounds Farm, Maiya Avalon Bourland, Precilla Tang Mar 2013

Evaluation And Design Of Potting Production Process Improvements For The Non-Profit Organization, Growing Grounds Farm, Maiya Avalon Bourland, Precilla Tang

Industrial and Manufacturing Engineering

This report focuses on the potting production process for the non-profit organization (NPO) Growing Grounds Farm (GGF), and aims to promote a standardized workflow system to enhance the working experience for Transitions‐Mental Health Association employees and volunteers. This project takes careful consideration into the process improvements proposed so to support the double bottom line of economic and social objectives. To address the equally important objectives, the Human Centered Design toolkit created by IDEO, specifically for third sector organizations, was integrated with the traditional Industrial Engineering design process methodology. Feasible alternatives were developed and evaluated based on the objectives. The selected …


Design Of An Automated Employee Scheduling System, Matthew Cameron, Yuriy Goldman Mar 2013

Design Of An Automated Employee Scheduling System, Matthew Cameron, Yuriy Goldman

Industrial and Manufacturing Engineering

Many retail stores, as well as other organizations that employ a multitude of part-time employees, rely on developing schedules frequently, since the availabilities of the employees as well as the needs of the business change often. This process is often performed on a weekly basis, and is complex and time-consuming. The schedule must typically satisfy numerous requirements, including business needs, legal restrictions, and employee availability constraints. As a result, errors are common, and employee time that could have been spent on improving sales or operations is instead consumed by the scheduling task.

This project explores two solution methods for this …


Atk's Radial Airframe Forming Process Assessment, Andres Martinez Mar 2013

Atk's Radial Airframe Forming Process Assessment, Andres Martinez

Industrial and Manufacturing Engineering

The purpose of this project was to provide ATK with a solution to increase efficiency in the R-02 radial forming center so that it could meet the increase in demand projected for the next 5 years. In addition, give ATK projected dates of when new machines would need to be implemented to be able to keep up with the demand. The system was analyzed through time studies to identify areas of possible improvement and eliminate any non-value added activities. Cycle times of each activity were used to simulate the current state of the system using ProModel software. Changes in operations …


Restaurant Design: An Industrial Engineering Perspective, Joseph Travis Spanu Mar 2013

Restaurant Design: An Industrial Engineering Perspective, Joseph Travis Spanu

Industrial and Manufacturing Engineering

The objective of this paper is to design a health food restaurant using current industrial engineering tools and practices. This includes creating a menu, determining the average gross profit per customer, determining the location, designing a 3-d layout, simulating service, and analyzing local food supply chains. Using a simplified menu and pricing quotes from a food distributor, the average gross profit per customer is estimated to be $3.50. Location is determined by comparing the predicted number of customers and the cost to rent at two different areas. A downtown location is determined to gross approximately $5,200 per month over a …


Women's High Heel Discomfort Analysis And Prototype Solution, Kevin Blakley, Annamarie Kepple Mar 2013

Women's High Heel Discomfort Analysis And Prototype Solution, Kevin Blakley, Annamarie Kepple

Industrial and Manufacturing Engineering

ABSTRACT

WOMEN’S HIGH HEEL DISCOMFORT ANALYSIS AND SOLUTION

Kevin Blakley and Annamarie Kepple

Women love high heeled shoes, but this love comes at the cost of comfort. Wearing high heels causes a lot of pain and, in the long term, health complications. This project tries to overcome the problem by ultimately making high heels more comfortable. In order to do this, one must first understand the reasons that high heels are uncomfortable, such as arch angle, heel height, and the changes in walking motion. Once there is a true understanding of the factors that contribute to high heel discomfort, the …


Strider: Manufacturing Processes, Michael Warren-Angelucci Dec 2012

Strider: Manufacturing Processes, Michael Warren-Angelucci

Industrial and Manufacturing Engineering

The goal of the Strider Project is to create a mobility device that can support a person with weakened leg strength and enable them to be supported and maintain a standing position. A prototype of the Strider was created by three Mechanical Engineering students as their senior project. The topic of this senior project was to analyze and create a manufacturing process for the manufacture of the Strider that will be ergonomic and cost effective.

There were many things that needed to be accomplished in order to create the manufacturing process. The first step was to verify that the prototype …


Sustainability For Die Manufacturing: Comparative Study Of Wedm And Milling, Matthew S. Kalus Dec 2012

Sustainability For Die Manufacturing: Comparative Study Of Wedm And Milling, Matthew S. Kalus

Department of Mechanical and Materials Engineering: Dissertations, Theses, and Student Research

Sustainability is more important in today's culture due to the increasing demand for a more eco-friendly society. Concentrations in minimizing and reducing environmental impacts, energy and natural resources have been forthcoming in industry. The tool, mold and die industries are the most well known industries that machine harder materials using mills and WEDM. The objective of this thesis was to compare the sustainability differences in both of these machines utilizing the accepted standards for evaluating the manufacturing process performance for sustainability. These standards include the evaluation of the process parameters, raw materials, power, tools and fluids which all contribute to …


Process Improvements For Establishing Cmmi Certification At Company Xyz, Megan Farrell Nov 2012

Process Improvements For Establishing Cmmi Certification At Company Xyz, Megan Farrell

Industrial and Manufacturing Engineering

CMMI stands for Capability Maturity Model Integration and is an enterprise-wide Process-Improvement model that provides a set of best practices that addresses productivity, performance, costs, and stakeholder satisfaction. This improvement model is generally used in computer software companied and not only does it improve their processes, but many contracts will only be awarded with those companies who are CMMI certified, so it is very important for Company XYZ. This goal of this project was to help improve the CMMI efforts at Company XYZ in 4 of the 20 distinct processes areas to attain a CMMI Maturity Level of 3. Improvement …


Design And Manufacture Of Natural Composite Canoe, Derek Baptista Nov 2012

Design And Manufacture Of Natural Composite Canoe, Derek Baptista

Industrial and Manufacturing Engineering

Abstract

This report looks into the application and feasibility of manufacturing natural composite canoes. The main fabrics that were analyzed are flax, hemp, and jute. These were then compared to carbon fiber and fiberglass to see the difference in mechanical properties. It was found that the natural fibers have lower mechanical properties but that this could be overcome by designing a balsa wood core with ribs running up the walls. After manufacturing a hemp canoe, many lesson were learned and areas of interest were further explored. With the use of different natural fibers, these canoes can greatly reduce the carbon …


Chsr Clothing: How To Start A Small Business Clothing Line To Be Run Efficiently With Minimum Capital And Maximum Profit, Kayvon Banisalam Nov 2012

Chsr Clothing: How To Start A Small Business Clothing Line To Be Run Efficiently With Minimum Capital And Maximum Profit, Kayvon Banisalam

Industrial and Manufacturing Engineering

Executive Summary

Many clothing brands have failed because they did not design marketable products with a suitable business plan. Often times, clothing brand owners do not use the capital they possess in efficient ways. They can get caught off guard with unexpected costs and are not running the business in the most resourceful and professional way.

The goal of this project is to create a clothing brand that portrays distinctive designs to go along with an effective business model. This includes implementing decision analysis at several points of the planning phase, along with quality and cost controls. Creating quality products …


Facilities Planning For An Aerospace Manufacturing Company, William Petrossi Nov 2012

Facilities Planning For An Aerospace Manufacturing Company, William Petrossi

Industrial and Manufacturing Engineering

Absolute Technologies Inc. (ATI) has been growing for years, and is running out of space at their current manufacturing facility in Yorba Linda, CA. ATI will be moving to a much larger facility this winter. They are looking for an efficient way to utilize this space. The machine positions were taken as fixed, seeing as a lean expert was brought in to give advice on placement. With the machines fixed, the scope was narrowed to other areas.

A systematic approach to facilities design is utilized. First, a goal needs to be defined. The goal is to reduce the time wasted …


Consolidation Of Company Abc, Estelle Sillari-Owen Nov 2012

Consolidation Of Company Abc, Estelle Sillari-Owen

Industrial and Manufacturing Engineering

This project aims to solve Company ABC’s issues in order to keep the company afloat and to keep the company profitable. This was done by reducing Company ABC’s organizational and inventory build-up issues. The project aims to reduce the company’s dependence on outside storage, with plans of consistent inventory reduction over the next year. An implementation plan was created to ensure the company keeps on track to increase profits and prevent against increasing inventory costs.


Droplet Spray Behavior Of An Atomization-Based Cutting Fluid (Acf) System For Machining Of Titanium Alloys, Chandra Nath, Shiv G. Kapoor, Anil K. Srivastava, Jon Iverson Nov 2012

Droplet Spray Behavior Of An Atomization-Based Cutting Fluid (Acf) System For Machining Of Titanium Alloys, Chandra Nath, Shiv G. Kapoor, Anil K. Srivastava, Jon Iverson

Manufacturing & Industrial Engineering Faculty Publications

The aim of this research is to study droplet spray characteristics of an atomization-based cutting fluid (ACF) spray system including droplet entrainment angle and flow development regions with respect to three ACF spray parameters, viz., droplet and gas velocities, and spray distance. ACF spray experiments are performed by varying droplet and gas velocities. The flow development behavior is studied by modeling the droplets entrainment mechanism, and the density and distribution of the droplets across the jet flare. Machining experiments are also performed in order to understand the effect of the droplet spray behavior on the machining performances, viz., tool life/wear, …