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A Study Of The Effects Of Manufacturing Complexity On Product Quality In Mixed-Model Automotive Assembly, Kavit Ravindra Antani 2014 Clemson University

A Study Of The Effects Of Manufacturing Complexity On Product Quality In Mixed-Model Automotive Assembly, Kavit Ravindra Antani

All Dissertations

The objective of this research is to test the hypothesis that manufacturing complexity can reliably predict product quality in mixed-model automotive assembly.

Originally, assembly lines were developed for cost efficient mass-production of standardized products. Today, in order to respond to diversified customer needs, companies have to allow for an individualization of their products, leading to the development of the Flexible Manufacturing Systems (FMS). Assembly line balancing problems (ALBP) consist of assigning the total workload for manufacturing a product to stations of an assembly line as typically applied in the automotive industry. Precedence relationships among tasks are required to conduct partly ...


Development Of Nhtsa’S Side Impact Test Procedure For Child Restraint Systems Using A Deceleration Sled : Part 2, Janet Brelin-Fornari, Sheryl Janca 2014 Kettering University

Development Of Nhtsa’S Side Impact Test Procedure For Child Restraint Systems Using A Deceleration Sled : Part 2, Janet Brelin-Fornari, Sheryl Janca

Mechanical Engineering Grants

This report presents the results of the continued research and development of child seat side impact tests using the deceleration sled at Kettering University’s Crash Safety Center. The objective of this test series was to gain further insight into the sensitivity of the side impact test fixture response. Test variations included speed of impact, weight of the fixture, and impact characteristics. Additionally, 20 child restraint system (CRS) specific tests were conducted using a fixed set of test parameters.


Development Of Nhtsa’S Side Impact Test Procedure For Child Restraint Systems Using A Deceleration Sled : Part 1, Janet Brelin-Fornari, Sheryl Janca 2014 Kettering University

Development Of Nhtsa’S Side Impact Test Procedure For Child Restraint Systems Using A Deceleration Sled : Part 1, Janet Brelin-Fornari, Sheryl Janca

Crash Safety Center Publications

This report presents the results of the research and development of the child seat side impact tests performed at Kettering University’s Crash Safety Center for NHTSA. The tests were conducted using a deceleration sled. The objective of this testing was to obtain data for the development of a side impact test procedure for child restraint systems.


No And No2 Modeling For Diesel Oxidation Catalyst At Different Thermal Aging Levels, Keqin Zhou 2014 Purdue University

No And No2 Modeling For Diesel Oxidation Catalyst At Different Thermal Aging Levels, Keqin Zhou

Open Access Theses

Different DOC modeling methods are analyzed and compared. Detailed reaction mechanisms of DOC reaction are discussed and a new NO and NO2 modeling technique is proposed. Experiments are conducted measuring downstream DOC NO and NOx . DOC out NO and NO2 concentrations are modeled as a function of DOC temperature. A robust model is built such that with the input of real time NOx and DOC temperature information, DOC-out NO and NO2 concentrations can be precisely predicted.

As is true with many catalysts, the DOC thermally ages as it operates, which reduces the thermal effectiveness level of the catalyst. This directly ...


Development Of A Spring-Based Automotive Starter, David H. Myszka, Jonathan Lauden, Patrick Joyce, Andrew P. Murray, Christoph Gillum 2014 University of Dayton

Development Of A Spring-Based Automotive Starter, David H. Myszka, Jonathan Lauden, Patrick Joyce, Andrew P. Murray, Christoph Gillum

Mechanical and Aerospace Engineering Faculty Publications

Automotive starting systems require substantial amounts of mechanical energy in a short period of time. Lead-acid batteries have historically provided that energy through a starter motor. Springs have been identified as an alternative energy storage medium and are well suited to engine-starting applications due to their ability to rapidly deliver substantial mechanical power and their long service life. This paper presents the development of a conceptual, spring-based starter. The focus of the study was to determine whether a spring of acceptable size could provide the required torque and rotational speed to start an automotive engine. Engine testing was performed on ...


Development Of Nhtsa’S Side Impact Test Procedure For Child Restraint Systems Using A Deceleration Sled : Part 1, Janet Brelin-Fornari, Sheryl Janca 2014 Kettering University

Development Of Nhtsa’S Side Impact Test Procedure For Child Restraint Systems Using A Deceleration Sled : Part 1, Janet Brelin-Fornari, Sheryl Janca

Mechanical Engineering Grants

This report presents the results of the research and development of the child seat side impact tests performed at Kettering University’s Crash Safety Center for NHTSA. The tests were conducted using a deceleration sled. The objective of this testing was to obtain data for the development of a side impact test procedure for child restraint systems.


Differential Effects Of Refractive Blur On Day And Nighttime Driving Performance, Joanne M. Wood, Michael J. Collins, Alex Chaparro, Ralph Marszalek, Trent Carberry, Philippe Lacherez, Byoung Sun Chu 2014 Queensland University of Technology

Differential Effects Of Refractive Blur On Day And Nighttime Driving Performance, Joanne M. Wood, Michael J. Collins, Alex Chaparro, Ralph Marszalek, Trent Carberry, Philippe Lacherez, Byoung Sun Chu

Publications

PURPOSE. To investigate the effect of different levels of refractive blur on real-world driving performance measured under day and nighttime conditions.

METHODS. Participants included 12 visually normal, young adults (mean age = 25.+- 5.2 years) who drove an instrumented research vehicle around a 4 km closed road circuit with three different levels of binocular spherical refractive blur (+0.50 diopter sphere [DS], +1.00 DS, +2.00 DS) compared with a baseline condition. The subjects wore optimal spherocylinder correction and the additional blur lenses were mounted in modified fullfield goggles; the order of testing of the blur conditions was randomized ...


Rotational Torque Measurement Device, Paul A. LaVigne, Daniel R. Kemppainen, Glen L. Barna 2014 Michigan Technological University

Rotational Torque Measurement Device, Paul A. Lavigne, Daniel R. Kemppainen, Glen L. Barna

Michigan Tech Patents

A device for measuring torque applied through a rotating member. A first torsion reference member is fixedly coupled to the rotating member at a first axial position and a second torsion reference member is fixedly coupled to the rotating member at a second axial position. A first detector detects the passage of the first torsion reference member past the first detector upon each full rotation of the rotating member and to generate a first signal upon each passage of the first torsion reference member. A second detector detects the passage of the second torsion reference member past the second detector ...


Anti-Icing Coatings And Methods, Russell G. Alger 2014 Michigan Technological University

Anti-Icing Coatings And Methods, Russell G. Alger

Michigan Tech Patents

A method of inhibiting or preventing bonding between snow or ice and a substrate. The method includes applying an adhesive to the substrate, broadcasting an aggregate onto the adhesive, the aggregate having the capacity to receive an anti-icing chemical into the aggregate, and applying the antiicing chemical onto the aggregate so that at least a portion of the anti-icing chemical is received into at least a portion of the aggregate.


Engine Combustion, Performance And Emission Characteristics Of Gas To Liquid (Gtl) Fuels And Its Blends With Diesel And Bio-Diesel, Mahendra Varman Munusamy M. Varman 2014 University of Malaya

Engine Combustion, Performance And Emission Characteristics Of Gas To Liquid (Gtl) Fuels And Its Blends With Diesel And Bio-Diesel, Mahendra Varman Munusamy M. Varman

Mahendra Varman Munusamy (M. Varman)

Crude oil price hikes, energy security concerns and environmental drivers have turned the focus on alternative fuels. Gas to liquid (GTL) diesel is regarded as a promising alternative diesel fuel, considering the adeptness to use directly as a diesel fuel or in blends with petroleumderived diesel or bio-diesel. GTL fuel derived from Fischer-Tropsch synthesis is of distinctly different characteristics than fossil diesel fuel due to its paraffinic nature, virtually zero sulfur, low aromatic contents and very high cetane number. GTL fuel is referred to as a “clean fuel” for its inherent ability to reduce engine exhaust emission even with blends ...


Trends Of Syngas As A Fuel In Internal Combustion Engines, Ftwi Yohaness Hagos, A. Rahsid Abd Aziz, Shaharin A. Sulaiman 2014 Universiti Malaysia Pahang

Trends Of Syngas As A Fuel In Internal Combustion Engines, Ftwi Yohaness Hagos, A. Rahsid Abd Aziz, Shaharin A. Sulaiman

Ftwi Yohaness Hagos

Syngas from biomass and solid waste is a carbon-neutral fuel believed to be a promising fuel for future engines. It was widely used for spark-ignition engines in the WWII era before being replaced with gasoline. In this paper, the technological development, success, and challenges for application of syngas in power generating plants, the trends of engine technologies, and the potential of this fuel in the current engine technology are highlighted. Products of gasification vary with the variation of input parameters. Therefore, three different syngases selected from the two major gasification product categories are used as case studies. Their fuel properties ...


Current Trends In Water-In-Diesel Emulsion As A Fuel, Mohammed Yahaya khan, Zainal Ambri Abdul Karim, Ftwi Yohaness Hagos, Isa Mohd Tan, A. Rashid Abd Aziz 2014 Universiti Teknologi PETRONAS

Current Trends In Water-In-Diesel Emulsion As A Fuel, Mohammed Yahaya Khan, Zainal Ambri Abdul Karim, Ftwi Yohaness Hagos, Isa Mohd Tan, A. Rashid Abd Aziz

Ftwi Yohaness Hagos

Water-in-diesel emulsion (WiDE) is an alternative fuel for CI engines that can be employed with the existing engine setup with no additional engine retrofitting. It has benefits of simultaneous reduction of both NO x and particulate matters in addition to its impact in the combustion efficiency improvement, although this needs further investigation. This review paper addresses the type of emulsion, the microexplosion phenomenon, emulsion stability and physiochemical improvement, and effect of water content on the combustion and emissions of WiDE fuel. The review also covers the recent experimental methodologies used in the investigation of WiDE for both transport and stationary ...


Experimental Setup And Controller Design For An Hcci Engine, Deepak Kothari 2014 Michigan Technological University

Experimental Setup And Controller Design For An Hcci Engine, Deepak Kothari

Dissertations, Master's Theses and Master's Reports - Open

Homogeneous charged compression ignition (HCCI) is a promising combustion mode for internal combustion (IC) engines. HCCI engines have very low NOx and soot emission and low fuel consumption compared to traditional engines. The aim of this thesis is divided into two main parts: (1) engine instrumentation with a step towards converting a gasoline turbocharged direct injection (GTDI) engine to an HCCI engine; and (2) developing controller for adjusting the crank angle at 50% mass fuel burn (CA50), exhaust gas temperature Texh, and indicated mean effective pressure (IMEP) of a single cylinder Ricardo HCCI engine.

The base GTDI engine ...


Towards Proper-Inconsistency In Weldability Prediction Using K-Nearest Neighbor Regression And Generalized Regression Neural Network With Mean Acceptable Error, Junheung Park, Kyoung-Yun Kim, Raj Sohmshetty 2014 Wayne State College

Towards Proper-Inconsistency In Weldability Prediction Using K-Nearest Neighbor Regression And Generalized Regression Neural Network With Mean Acceptable Error, Junheung Park, Kyoung-Yun Kim, Raj Sohmshetty

Center for e-Design Proceedings

A significant inconsistency problem exists in the quality of resistance spot welding, and yet it offers various advantages in production. These inconsistent welding data can be eliminated using anomaly detection or instance selection methods. However, in the weldability prediction problem, this inconsistency we refer to as proper-inconsistency, may not be eliminated since it can be used to extract additional information. In this research, we examine the effects of this inconsistency on prediction performance using two machine learning methods, k-Nearest Neighbors (kNN) regression and Generalized Regression Neural Network, in order to identify an approach towards tackling the proper-inconsistency problem in weldability ...


Lessons In On-Campus And Distance Learning Delivery Of An Introductory Naval Architecture Course, Jennifer G. Michaeli 2014 Old Dominion University

Lessons In On-Campus And Distance Learning Delivery Of An Introductory Naval Architecture Course, Jennifer G. Michaeli

Engineering Technology Faculty Publications

This paper describes the author’s experiences in multi-mode (face-to-face and online) delivery of an introductory-level course on the topic of Naval Architecture geared towards anaudience of engineering and engineering technology undergraduate students with no previousmaritime background. The goal of this course is to expose talented undergraduate engineering students to the marine industry and to prepare those interested in pursing a career in this field with an introductory understanding of the complex nature of designing and building ships and other marine vessels. This course was offered in Spring 2013 and Fall 2013 to a group of engineering and engineering technology ...


Modeling A Severe Supply Chain Disruption And Post-Disaster Decision Making With Application To The Japanese Earthquake And Tsunami, Cameron A. MacKenzie, Kash Barker, Joost R. Santos 2014 University of Oklahoma

Modeling A Severe Supply Chain Disruption And Post-Disaster Decision Making With Application To The Japanese Earthquake And Tsunami, Cameron A. Mackenzie, Kash Barker, Joost R. Santos

Cameron A. MacKenzie

Modern supply chains are increasingly vulnerable to disruptions, and a disruption in one part of the world can cause supply difficulties for companies around the globe. This article develops a model of severe supply chain disruptions in which several suppliers suffer from disabled production facilities and firms that purchase goods from those suppliers may consequently suffer a supply shortage. Suppliers and firms can choose disruption management strategies to maintain operations. A supplier with a disabled facility may choose to move production to an alternate facility, and a firm encountering a supply shortage may be able to use inventory or buy ...


The Effects Of Low-Level Ethanol Blends In 4-Stroke Small Non-Road Engines, Chris Reek 2014 Minnesota State University - Mankato

The Effects Of Low-Level Ethanol Blends In 4-Stroke Small Non-Road Engines, Chris Reek

All Theses, Dissertations, and Other Capstone Projects

Small Non-Road Engines (SNRE's) abound in numbers and are used daily by consumers and businesses alike. Considering the atmosphere of change looming in the air regarding alternative fuels, this particular engine classification will also be affected by any change in standardization of fuels. This body of research attempts to address possible ways SNRE's can change their operational characteristics after being fueled by specific yet differing fuels. These characteristics will be contrasted against blends of ethanol with gasoline, from 0% ethanol to 20% ethanol, run on test engines to determine patterns, if any, of these characteristics. Topics include: materials ...


The Effects Of Layer Thickness On Dry-Sliding Wear Of Binder Jet Additively Manufactured Stainless Steel And Bronze Composite, Cody Ingenthron 2014 Minnesota State University - Mankato

The Effects Of Layer Thickness On Dry-Sliding Wear Of Binder Jet Additively Manufactured Stainless Steel And Bronze Composite, Cody Ingenthron

All Theses, Dissertations, and Other Capstone Projects

Pin on disk wear testing was used to compare additively manufactured binder jet metal matrix composites. The process parameters were changed. The layer thickness and applied forces were varied for the experimental study. Three different layer thicknesses used were, 50μm, 100μm, and 200μm. The pin used was a 420 stainless pin. The wear characteristics of the disk were examined using pin-on-disc method. The material tested was a composite of 420 stainless steel, and 90-10 bronze. Samples were weighed before, during, and after the test to determine differences in mass. Wear tracks were examined using a Scanning Electron Microscope. The results ...


Comparison Of An Analytical Hierarchy Process And Fuzzy Axiomatic Design For Selecting Appropriate Photovoltaic Modules For Onboard Vehicle Design, Mahmoud M. Abdelhamid 2013 University of California Advanced Solar Technologies Institute (UC Solar) based UC Merced

Comparison Of An Analytical Hierarchy Process And Fuzzy Axiomatic Design For Selecting Appropriate Photovoltaic Modules For Onboard Vehicle Design, Mahmoud M. Abdelhamid

Mahmoud M Abdelhamid

In this paper, the authors present an overview of the available commercial photovoltaic (PV) module options for powering onboard vehicle applications. The authors used two decision-making methodologies to determine the evaluation factors and the decision-making criteria necessary for assessing the suitability of a particular PV module type. In both the analytical hierarchy process (AHP) and the fuzzy axiomatic design (AD), the authors used at the input stage quality function deployment (QFD) to determine customer requirements for a vehicle with PV module capabilities. This approach is innovative in that evaluation depended upon data collected from PV manufacturers’ datasheets. This approach is ...


Loading Path Determination For Tube Hydroforming Process Of Automotive Component Using Apdl, E. Masoumi Khalil Abad, Amir Ghazanfari, R. Hashemi 2013 McGill University

Loading Path Determination For Tube Hydroforming Process Of Automotive Component Using Apdl, E. Masoumi Khalil Abad, Amir Ghazanfari, R. Hashemi

Faculty Publications, Mechanical Engineering

In this study, an extended stress-based forming limit diagram (FLD) for prediction of necking based on the Marciniak and Kucznski (M-K) model is represented and applied in tube hydroforming. The bulge forming of a straight tube is simulated by finite element method and verified with published experimental data. This adaptive simulation technique is based on the ability to detect the onset and growth of defects (e.g., bursting and wrinkling) and to promptly readjust the loading paths. Thus, a suitable load path is determined by applying Adaptive Simulation Method in ANSYS Parametric Design Language (APDL).


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