Operations Research, Systems Engineering and Industrial Engineering Commons^™

Integrating Courses Through Project Based Learning, Lizabeth Schlemer, Sema E. Alptekin, Karen R. Bangs

Industrial and Manufacturing Engineering

Integrating three courses (one sophomore level, two senior level) through Project Based Learning (PBL) within the Industrial Engineering curriculum at the California Polytechnic State University, San Luis Obispo is presented. Three courses (IME 443 Facilities Planning and Design - senior level; IME 420 Simulation - senior level; and IME 223 Process Improvement Fundamentals - sophomore level) were linked by various mechanisms: Common industry projects, common students in two of the three courses; senior students having access to sophomores in their teams to carry out time consuming tasks such as time studies, and sophomores having access to seniors as team members, …

Effect Of Gold Content On The Microstructural Evolution Of Sac305 Solder Joints Under Isothermal Aging, Mike Powers, Jianbiao Pan, Julie Silk, Patrick Hyland

Industrial and Manufacturing Engineering

Au over Ni on Cu is a widely used printed circuit board (PCB) surface finish, under bump metallization (UBM), and component lead metallization. It is generally accepted that less than 3 wt.% Au in Sn-Pb solder joints inhibits formation of detrimental intermetallic compounds (IMC). However, the critical limit for Au content in Pb-free solder joints is not well established. Three surface-mount package platforms, one with a matte Sn surface finish and the others with Ni/Au finish, were soldered to Ni/Au-finished PCB using Sn-3.0Ag- 0.5Cu (SAC305) solder, in a realistic manufacturing setting. The assembled boards were divided into three groups: one …

The Morphology Evolution And Voiding Of Solder Joints On Qfn Central Pads With A Ni/Au Finish, Julie Silk, Jianbiao Pan, Mike Powers

Industrial and Manufacturing Engineering

In this paper, we report on a comprehensive study regarding the morphology evolution and voiding of SnAgCu solder joints on the central pad of two different packages – QFN and an Agilent package called TOPS – on PCBs with a Ni/Au surface finish. Samples were isothermally aged at the equivalent of 0, 2, 7 and 14 years service life. Representative solder joints were cross-sectioned and analyzed using scanning electron microscopy (SEM) and energy dispersive X-ray spectroscopy (EDX) in order to investigate the evolution of the solder joint morphology as a function of Au content and isothermal aging. IMC thickness was …

Dynamic Analysis Of A Lean Cell Under Uncertainty, Ahmed M. Deif

Industrial Technology and Packaging

One of the ultimate targets of lean manufacturing paradigm is to balance production and produce at takt time in production cells. This paper investigates the performance of a lean cell that implements the previous lean goals under uncertainty. The investigation is based on a system dynamics approach to model a dynamic lean cell. Backlog is used as a performance metric that reflects the cell’s responsiveness. The cell performance is compared under certain and uncertain external (demand) and internal (machine availability) conditions. Results showed that although lean cell is expected to be responsive to external demand with minimum waste, however, this …

Pico-Satellite Integrated System Level Test Program, Marcus A. Ruddy

Master's Theses

Testing is an integral part of a satellite’s development, requirements verification and risk mitigation efforts. A robust test program serves to verify construction, integration and assembly workmanship, ensures component, subsystem and system level functionality and reduces risk of mission or capability loss on orbit.

The objective of this thesis was to develop a detailed test program for pico-satellites with a focus on the Cal Poly CubeSat architecture. The test program established a testing baseline from which other programs or users could tailor to meet their needs. Inclusive of the test program was a detailed decomposition of discrete and derived test …

Measurement And Analysis Of Vehicle Vibration For Delivering Packages In Small‐Sized And Medium‐Sized Trucks And Automobiles, Vanee Chonhenchob, Sher Paul Singh, Jay Jagjit Singh, Joseph Stallings, Gary Grewal

Industrial Technology and Packaging

In distribution, packaged products are subjected to the variation in vibration levels from transport vehicles that vary in frequency and acceleration while moving to their destinations. This vibration may negatively affect the product or packaging. This study measured and analysed vibration levels in vehicles commonly used to transport packages in the last leg of the package delivery service that is used by single‐parcel carriers. Using data recorders, we monitored vertical, lateral and longitudinal vibrations over 75 h of travel time in five different types of small and medium package delivery vehicles. The study presents these data as power density (PD) …

City Of Industry: Los Efectos Concretos En El Condado De Los Angeles En La Economía, El Medio Ambiente Y La Salud Pública, Christina Andrea Hernandez

World Languages and Cultures

This project attempts to document the development of the City of Industry, located in eastern Los Angeles County, and to examine the environmental as well as socio-economic effects this industrial hub maintains on its surrounding neighborhoods. City of Industry, since its incorporation in 1957, has established an alarming precedent as a privatized city that has informed concrete changes in the local economy, the environment, and the public health of the surrounding communities that are predominantly Latina(o).

The research undertaken for this project represents an interdisciplinary intersection of a special topic in the study of Industrial Engineering: the global logistics industry, …

Review Of Package Warning Labels And Their Effect On Consumer Behaviour With Insights To Future Anticounterfeit Strategy Of Label And Communication Systems, John Spink, Jay Singh, S. Paul Singh

Industrial Technology and Packaging

This paper investigates and reviews literature regarding a range of topics important to the research question – the themes apply across all the topics. The topics include label and package warnings, including tamperevident features, to review their effect on the consumer behaviour of changing usage or purchase decisions. This information was then applied to gain insight into anticounterfeit product/package efforts. Based on this research, it appears that there is value for brand marketers to enhance their anticounterfeit efforts and consumer confidence by utilizing warning labels and information labels on their labels or packages. Currently, consumer perception of a domestic counterfeit …

City Of Industry: An Historical Precedent And Its Concrete Effects, Christina A. Hernandez

Liberal Arts and Engineering Studies

No abstract provided.

A Study Of Solder Joint Failure Criteria, Jianbiao Pan, Julie Silk

Industrial and Manufacturing Engineering

One of the challenges in an experimental study of solder joint reliability is to determine when cracks occur in a solder joint or when a solder joint fails. Cracks in a real solder joint are difficult to identify using an X-Ray system. Cross-sectioning and scanning electron microscopy (SEM) is a destructive method. A common non-destructive test method is to monitor resistance increase in a solder joint or a daisy-chain. However, no scientific research has been done in establishing the relationship between the crack area of an interconnection and the change in resistance of the interconnection. This paper proposes a method …

Effect Of Gold Content On The Reliability Of Snagcu Solder Joints, Jianbiao Pan, J. Silk, M. Powers, P. Hyland

Industrial and Manufacturing Engineering

Electroplated Ni/Au over Cu is a popular metallization for printed circuit board finish as well as for component leads, especially wire-bondable high-frequency packages, where the gold thickness requirement for wire bonding is high. The general understanding is that less than 3 wt% of Au is acceptable in SnPb solder joints. However, little is known about the effect of Au content on the reliability of SnAgCu solder joints. The purpose of this paper is to determine the acceptable level of Au in SAC305 solder joints. Three different package platforms with different Au thicknesses were assembled on boards with two different Au …

Design Of A University Research Network: Analysis, Selection, And Implementation Planning, Anna P. Hopper

Master's Theses

This report focuses on the design of a university knowledge management system (KMS), and how such a system can provide the framework for students and faculty to partake in, share, and collaborate on research activities. The collaborative environment of a university KMS, or research network, must be established in order for a university to maintain its reputation as a competitive research institution and to develop its faculty and students outside the classroom. A research network may contain a variety of features, some of which include faculty profiles, forums, communication portals, publication links, biographies, faculty keywords, interest areas and contact information. …

Effect Of Processing, Packaging And Vibration Treatment On The Sensory Quality Of Fresh-Cut Apple Slices, M. Siddiq, J. B. Harte, S. P. Singh, A. A. Khan, K. D. Dolan, Koushik Saha

Industrial Technology and Packaging

Fresh-cut fruit industry has seen tremendous growth in recent years. The present study was designed with the objective of studying the sensory quality of fresh-cut apple slices that were treated with different antibrowning agents, packed in three types of packaging materials and subjected to vibration treatment to simulate commercial transportation. The slices were treated with two commercial antibrowning agents [NatureSeal (Mantrose-Haeuser Co., Inc., Westport, CT, USA) and Ever-Fresh (Kraft Foods, Inc., Rye Brook, NY, USA)] at 5% (w/v) application rate. The treated slices were packaged in 5 oz polystyrene rigid container, 2 lb polyethylene bag or 2 oz polyethylene bag. …

Effect Of Palletized Box Offset On Compression Strength Of Unitized And Stacked Empty Corrugated Fiberboard Boxes, S. Paul Singh, Jay Singh, Koushik Saha

Industrial Technology and Packaging

The purpose of this study was to evaluate the effect of pallet type, tie-sheet and stack configuration on compression strength of a palletized load of boxes. Four boxes made from similar board grade and different dimensions were selected for this study. The column stack configuration which represented the control was compared with the 3 stack configurations either on a CHEP® or GMA pallet. The unitized load either had a tie-sheet in between layers or no tie-sheet between layers of boxes on the respective pallets, for compression strength comparison with the control unitized load represented by a column stack configuration. This …

Effect Of Horizontal Offset On Vertical Compression Strength Of Stacked Corrugated Fiberboard Boxes, Jay Singh, S. Paul Singh, Koushik Saha

Industrial Technology and Packaging

The purpose of this study was to evaluate the effect of horizontal offset on the compression strength of stacked box configurations. Four different boxes of varying sizes and similar board combinations, made from similar flute but different manufacturers were studied. The single box compression strength for each type of box was determined to represent as the control for this study. The compression strength of control boxes were compared to overall strength of a three-high stack and in three different offset configurations. In addition a set of perfectly aligned boxes were compared to overall strength of a three-high stack and in …

The Inside-Out Classroom: A Win-Win Strategy For Teaching With Technology, Daniel J. Waldorf, Lizabeth Schlemer

Industrial and Manufacturing Engineering

As costs of higher education soar and many universities face uncertain funding models, institutional pressures have increased to improve instructor efficiency. At the same time, U.S. industry leaders and leading educators have called for improvements in engineering education based on more interactive, hands-on student learning experiences. Although many efforts have been made to take advantage of technology to either improve student learning or to maintain student learning while increasing instructor efficiency, few approaches have been shown to improve both learning and efficiency. A teaching method is proposed to improve student learning and increase student satisfaction while also addressing the instructors’ …

Evolving A Summer Engineering Camp Through Assessment, Katherine Chen, Lizabeth Schlemer, Heather Scott Smith, Teana Fredeen

Industrial and Manufacturing Engineering

EPIC (Engineering Possibilities in College) is a one-week summer program for high school students (entering 9th-12th grades) to learn about engineering and experience hands-on labs in a university atmosphere. It's an opportunity for students to explore the different types of engineering available at many universities. The aim of EPIC is to expand the College of Engineering mission to K-12 students: "To educate students for careers of service, leadership and distinction in engineering or other fields by using a participatory, learn by doing, ‘hands-on’ approach".

Design Projects With Out-Of-Town Companies, Lizabeth Schlemer

Industrial and Manufacturing Engineering

The capstone design class in the industrial engineering department at California Polytechnic State University, San Luis Obispo (Cal Poly) includes projects with companies. The projects are large ambiguous facilities design problems that allow students to incorporate many aspects of the IE curriculum. For the past 15 years students have been participating in these projects with local companies. Over the past several years, companies from out of town (200 miles to the north in Mountain View or 200 miles to the south in Oxnard) have participated. These out of town companies have presented certain logistical issues, but they have proven to …

A System Model For Green Manufacturing, Ahmed M. Deif

Industrial Technology and Packaging

Manufacturing systems evolution is afunction in multiple external and internal factors. With today’s global awareness of environmental risks as well as the pressing needs to compete through efficiency, manufacturing systems are evolving into a new paradigm. This paper presents a system model for the new green manufacturing paradigm. The model captures various planning activities to migrate from a less green into a greener and more eco-efficient manufacturing. The various planning stages are accompanied by the required control metrics as well as various green tools in an open mixed architecture. The system model is demonstrated by an industrial case study. The …

Optimal Process Design For Recycled Pet Blends In Injection Molding, Perry H. Johnson

Industrial and Manufacturing Engineering

This case study on optimization of blends with process variables shows how application of advanced tools of Design of Experiments can simultaneously optimize a mixture formulation and processing conditions, taking advantage of complex interactions in the system. The effect of recycled PET and virgin PET on tensile strength and stiffness was studied. The optimal amount of mixture components to produce maximum recycled-content products is determined. As the results of doing systematic experimentation, using mixture experiments, the quality of recycled plastic products can be improved and becomes more robust to variations at the optimal thermal operating settings. This is done through …

Microfiche Digitization And Process Improvement For Cal Poly Senior Projects, Kyle Gaunt

Industrial and Manufacturing Engineering

This project addresses the need to digitize Senior Projects available on microfiche at the Cal Poly Robert E. Kennedy Library. Microfiche is an outdated document archival medium and is unfamiliar to most students, making Senior Project research inconvenient and frustrating to students. To make this process easier and more accessible to students, the University Library should consider digitizing its Senior Project collection and improving the current system in the mean time.

The Six Sigma DMAIC method was used to discover root cause problems of the current system, define performance metrics, and to develop data driven solutions for improving the current …

Radio Frequency Identification Classroom Management System, Andrew W. Wright

Industrial and Manufacturing Engineering

Professors who manage large classes are unrealistically expected to grade each student fairly and accurately. Even with all of the technological advancements that have occurred in the past thirty years, very little progress has been made in classroom management, and as a result, professors are not equipped with enough tools to successfully manage large class sizes. Because radio frequency identification (RFID) technology is making its way into student issued identification cards, there is an opportunity to use it as a tool to aid professors in the classroom. The focus of this paper is to discover an effective system that can …

New Product Development Project Construction, Implementation And Continual Improvement: A Case Illustration From Semiconductor Manufacturing, Philip Daniel Walker

Industrial and Manufacturing Engineering

Successful projects are the backbone of companies that lead their respective fields. Failed projects for one reason or another are more often than not the reason some companies fall further and further behind their counterparts. Projects are becoming more technologically advanced. Projects are more expensive and are receiving less funding than they used to due to a highly competitive economic climate. The projects in the second decade of 2000 have to meet the triple bottom line of cheaper, faster, and better than ever before. Due to these reasons projects have continued to fail at an alarming rate (nearly 70% in …

Setup Reduction Time At A Batch Manufacturing Plant, Mario A. Aguilar

Industrial and Manufacturing Engineering

This project documents the efforts to reduce setup times at a batch manufacturing culture media production plant. The company is one of the leading producers in medical and laboratory supplies, including culture media. In the production of culture media, the production line requires to switch between solutions once or twice a day depending on the production schedule.

The report provides the production plant with a concrete analysis of their current changeover method, which tends to be lengthy and complicated, and suggest alternatives in short and long term periods of time to reduce setup time.

After analyzing the time studies of …

Ms Access Database Designed For Community Service Office, Juan P. Ojeda Pedraza

Industrial and Manufacturing Engineering

The purpose of this senior project is to reduce the number of data entry errors in the community service worker system at the EcoSLO office. EcoSLO is a community service office located in San Luis Obispo, CA that seeks to better the environment through various events and programs such as recycling projects and environmental clean-up projects. Currently the EcoSLO office uses Microsoft Excel to store and keep track of community service workers. A Microsoft Access database will be designed to help minimize data entry errors and to make it easier to generate reports that must be submitted to the San …

A Database Design For Cvs Pharmacy's Patterson, California Distribution Center, Jason Kenneth Okajima

Industrial and Manufacturing Engineering

CVS Pharmacy’s Patterson, California Distribution Center did not have an efficient and cost effective method for auditing shipped out products. The purpose of this project was to create a new system and procedure for the Patterson Distribution Center to audit shipped out container totes. The distribution center’s original method was slow, inefficient, and involved paper waste, considerable travel time, and several manual procedures. This project was meant to develop a new process and database system to provide a solution to their problem. The end goal of this project was to implement the designed method and system of auditing for daily …

Antique Aircraft Avionics Modernization: Process And System Design For A Transponder Installation In A 1946 Luscombe 8a, Nicholas Camacho

Industrial and Manufacturing Engineering

The general aviation population is full of vintage aircraft. Built in the heyday of personal aviation, these machines embody the spirit of aviation; freedom afforded from the everyday monotony of earthbound people. As technology advanced and air traffic became more congested, new requirements were set forth by governing bodies to ensure the safety of aircraft. These regulations limited the capability of vintage general aviation aircraft. This report was commenced to understand the necessary steps required to add modern technology to old aircraft, as well as design a system that would enhance the capability of vintage aircraft while keeping their antique …

Chevrolet Upper Control Arm Re-Design, Christopher Mclean

Industrial and Manufacturing Engineering

The purpose of this project is to design and manufacture an improved upper control arm for a 1988-1998 Chevrolet K2500 truck. This component controls the suspension of a vehicle and will be redesigned to improve the many shortcomings of the current design. The objectives of this project were met by redesigning the stock upper control arm, designing and manufacturing a weld fixture, manufacturing a prototype component, and performing a cost analysis. This component was designed to improve performance, reliability, serviceability and strength while maximizing manufacturability. The fixture and upper control arm were manufactured using computer aided design, CNC methods and …

San Luis Obispo Public Winery Transit System, Amanda Crissman

Industrial and Manufacturing Engineering

This project designs a small scale transit system that runs between five wineries in San Luis Obispo. San Luis Obispo County is known for its many wineries ranging up and down the central coast. Transportation options for wine tasters are limited to tour bus, limousine, taxi, and private cars. This does not leave an option for wine tasters who prefer a cheaper mode of transportation than limo, tour bus, or taxis, and do not want the hassle of driving and worrying about how much alcohol they consume. Selection criteria methods were used to choose bus stop locations at a specified …

Ergonomic Improvement On The Farm/Garden Hoe, Yuan Chao Jiang

Industrial and Manufacturing Engineering

The hoes are widely used in the farms and home gardens in the United States. Many existing hoes are not ergonomically designed because they require a lot of back bending and wrist bending during use. Back bending often causes lower back injuries, and wrist bending often causes carpal tunnel syndrome. It can be very expensive to cure these injuries. The objective of this project is to reduce back bending and wrist bending by redesigning the hoe in an ergonomic perspective. In order to achieve the objective, ergonomics and human factors concepts are applied in the design. Two additional side handles …