Applying Functional Modeling as a Unifying Basis for Design for Six Sigma Execution

Design Engineering ◽

10.1115/imece2004-62312 ◽

2004 ◽

Cited By ~ 1

Author(s):

Ryan S. Hutcheson ◽

Joseph A. Donndelinger ◽

Daniel A. McAdams ◽

Robert B. Stone

Keyword(s):

Six Sigma ◽

General Motors ◽

Functional Modeling ◽

University Of Missouri ◽

Functional Basis ◽

Design For Six Sigma ◽

Parking Brake ◽

Functional Models ◽

The University ◽

Current Engineering

This paper explores the applicability of the most recently developed methods in functional modeling to Design for Six Sigma transfer function development and requirements flowdown. An example created during a collaborative research project between the General Motors R&D Center and the University of Missouri – Rolla is used to demonstrate the benefits of using standardized functional modeling during conceptual design. The proposed standard for creating the functional models is the Functional Basis. The Functional Basis is a list of function and flow terms that can be used to describe electro-mechanical systems. The example presented in this paper is based on the parking brake system of a passenger car. Module heuristics, function-based rules for partitioning systems, were used to define the sub-systems during the requirements flowdown example. The functional modeling techniques used in this example provide a standard method of capturing current engineering design knowledge while allowing additional knowledge to be discovered.

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Application of Principle Component Analysis to Low Speed Rear Impact - Design for Six Sigma Project at General Motors

10.4271/2009-01-1204 ◽

2009 ◽

Cited By ~ 3

Author(s):

Balakrishna Chinta ◽

Srini Mandadapu ◽

Michael G. Carpenter

Keyword(s):

Principle Component Analysis ◽

Six Sigma ◽

Component Analysis ◽

General Motors ◽

Low Speed ◽

Principle Component ◽

Design For Six Sigma ◽

Rear Impact

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A Theory for the Development of Conceptual Functional Models for Automation of Manual Processes

Volume 3: 19th International Conference on Design Theory and Methodology; 1st International Conference on Micro- and Nanosystems; and 9th International Conference on Advanced Vehicle Tire Technologies, Parts A and B ◽

10.1115/detc2007-35620 ◽

2007 ◽

Cited By ~ 1

Author(s):

Robert L. Nagel ◽

Robert B. Stone ◽

Daniel A. McAdams

Keyword(s):

Conceptual Design ◽

Functional Model ◽

Process Models ◽

Functional Modeling ◽

Functional Basis ◽

Functional Models ◽

Electromechanical Products ◽

The Creation

Conceptual design is a vital stage in the development of any product, and its importance only increases with the complexity of a design. Functional modeling with the Functional Basis provides a framework for the conceptual design of electromechanical products. This framework is just as applicable to the conceptual design of automated solutions where an engineered product with components spanning multiple engineering domains is designed to replace or aid a human and his or her tools in a human-centric process. This paper presents research toward the simplification of the generation of conceptual functional models for automation solutions. The presented methodology involves the creation of functional and process models to fully explore existing human operated tasks for potential automation. Generated functional and process models are strategically combined to create a new conceptual functional model for an automation solution to potentially automate the human-centric task. The presented methodology is applied to the generation of a functional model for a conceptual automation solution. Then conceptual automation solutions generated through the presented methodology are compared to existing automation solutions to demonstrate the effectiveness of the presented methodology.

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A Signal Grammar to Guide Functional Modeling of Electromechanical Products

Journal of Mechanical Design ◽

10.1115/1.2885185 ◽

2008 ◽

Vol 130 (5) ◽

Cited By ~ 12

Author(s):

Robert L. Nagel ◽

Jayson P. Vucovich ◽

Robert B. Stone ◽

Daniel A. McAdams

Keyword(s):

Building Block ◽

Integrate System ◽

Conceptual Level ◽

Functional Modeling ◽

System Operation ◽

Functional Basis ◽

Proper System ◽

Functional Models ◽

Electromechanical Products ◽

Electromechanical Product

In modern product design methodologies, designers are increasingly required to combine elements spanning multiple engineering domains, thus blurring the boundaries between engineering disciplines. Functional modeling with the Functional Basis provides the basic tools required to integrate system models at the conceptual level; however, there is a lack of unified rules to address the structure of functional models. This article covers the development of a signal grammar for functional modeling with a Functional Basis. At the conceptual level, signal flows represent the information vital to a proper system operation. Signal flows are explored through their Functional Basis lexicon and primary/carrier flow relationships. A grammar, consisting of morphology and syntax, is presented and applied to a set of electromechanical, component-based building block examples. To further demonstrate the application of signals in functional modeling, an electromechanical product is explored functionally with the application of the signal grammar.

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Automated Concept Generation Using Branched Functional Models

Volume 1: 36th Design Automation Conference, Parts A and B ◽

10.1115/detc2010-28775 ◽

2010 ◽

Author(s):

Abhinav Krishna Choudhary ◽

Cari Bryant Arnold

Keyword(s):

Concept Generation ◽

University Of Missouri ◽

Generation Algorithm ◽

Generation Technique ◽

Functional Models ◽

Generation Theory ◽

Previous Algorithm ◽

Effective Use ◽

The University ◽

Complete Solutions

This paper discusses a new concept generation technique that improves upon a previous automated concept generation theory and algorithm developed by Bryant, et al. at the University of Missouri – Rolla. The previous automated concept generation algorithm utilizes the design knowledge present in a repository to produce an array of partial concept solutions. While the previous algorithm is capable of handling branched functional models, it does not efficiently remove all of the infeasible partial solutions to leave only whole concepts in the final results. A matrix-based algorithm is presented in this paper that utilizes the result from the previous concept generation algorithm and solves for complete solutions of branched concepts. The presented algorithm eliminates incomplete and infeasible concepts or components from the results and generates a set of full solutions for further analysis by a designer. The details of the algorithm are described in this paper, and a peanut-sheller example is used to illustrate the effective use of the algorithm for producing branched concept variants.

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TEM study of boron additions to cobalt aluminide

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100104790 ◽

1988 ◽

Vol 46 ◽

pp. 546-547

Author(s):

Gerald B. Feldewerth

Keyword(s):

High Temperature ◽

Turbine Engines ◽

Major Drawback ◽

University Of Missouri ◽

Specific Strength ◽

Aerospace Applications ◽

Wide Range ◽

Ordered Alloys ◽

The University ◽

Very High

In recent years an increasing emphasis has been placed on the study of high temperature intermetallic compounds for possible aerospace applications. One group of interest is the B2 aiuminides. This group of intermetaliics has a very high melting temperature, good high temperature, and excellent specific strength. These qualities make it a candidate for applications such as turbine engines. The B2 aiuminides exist over a wide range of compositions and also have a large solubility for third element substitutional additions, which may allow alloying additions to overcome their major drawback, their brittle nature.One B2 aluminide currently being studied is cobalt aluminide. Optical microscopy of CoAl alloys produced at the University of Missouri-Rolla showed a dramatic decrease in the grain size which affects the yield strength and flow stress of long range ordered alloys, and a change in the grain shape with the addition of 0.5 % boron.

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MARS — Its Tenth Anniversary of Operation and its Future

Methods of Information in Medicine ◽

10.1055/s-0038-1635276 ◽

1980 ◽

Vol 19 (03) ◽

pp. 125-132

Author(s):

G. S. Lodwick ◽

C. R. Wickizer ◽

E. Dickhaus

Keyword(s):

Conceptual Development ◽

Administrative Support ◽

Final Section ◽

Economic Benefits ◽

Hospital Environment ◽

Computer Scientist ◽

University Of Missouri ◽

Complete Bibliography ◽

The University ◽

Economic Considerations

The Missouri Automated Radiology System recently passed its tenth year of clinical operation at the University of Missouri. This article presents the views of a radiologist who has been instrumental in the conceptual development and administrative support of MARS for most of this period, an economist who evaluated MARS from 1972 to 1974 as part of her doctoral dissertation, and a computer scientist who has worked for two years in the development of a Standard MUMPS version of MARS. The first section provides a historical perspective. The second deals with economic considerations of the present MARS system, and suggests those improvements which offer the greatest economic benefits. The final section discusses the new approaches employed in the latest version of MARS, as well as areas for further application in the overall radiology and hospital environment. A complete bibliography on MARS is provided for further reading.

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