engr 107: engineering fundamentals lecture 6: the systems engineering process c. schaefer september...
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ENGR 107: Engineering ENGR 107: Engineering FundamentalsFundamentals
Lecture 6:The Systems Engineering Process
C. Schaefer
September 22, 2003
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PreliminariesPreliminaries
Design Review date has been changed to October 22, 2003.
LectureREAD CHAPTER 3 & 4
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ReferencesReferences Systems Engineering and Analysis, Second Edition,
Benjamin S. Blanchard and Wolter J. Fabrycky, Prentice Hall, 1990. (This is the “bible” on systems engineering).
Engineering: An Introduction to a Creative Profession, Fifth Edition, George C. Beakley, Donovan L. Evans, John Bertrand Keats, Macmillan Publishing Company, 1986.
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The Engineering MethodThe Engineering Method33
Identify and define the problem. Research the problem
– Accumulate data.– Relevant theory.– Previous solutions and approaches.
Solve the problem– Develop alternatives.– Modeling/simulation.– Experimentation– Synthesis
Testing and verification. Presentation.
3 My general method of solvingengineering problems. The “Schaefer Method”.
The engineering methodis a continuous feedbackloop.
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Real-World Engineering Real-World Engineering Development Process?Development Process?
Enthusiasm.Disillusionment.Panic.Search for the guilty party.Punishment of the innocent party.Fame and honor for the non-participants.
Taken from: OMNI Magazine, July 1980.
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The Systems Engineering ProcessThe Systems Engineering Process Systems engineering relates primarily to the design and
development of systems with an emphasis on;– transforming an operational need into a description of system
performance parameters.– an iterative process of functional analysis, synthesis, optimization,
definition, design, test and evaluation– ensuring that there is physical, functional, and program
compatibility between elements of the system– integrating performance, producibility, reliability, maintainability,
manability, supportability, and other “-ilities” into a comprehensive engineering effort
Systems engineering is not an engineering discipline per se, but the amalgamation of many technical and non-technical disciplines.
Systems engineering is “Designing for the Life Cycle”.
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The Consumer-to-Consumer The Consumer-to-Consumer ProcessProcess
Identification of need. System planning. System research. System design. Production and/or construction. System evaluation (T&E). System Use and logistic support.
Producer
Consumer
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Four Primary Phases of theFour Primary Phases of theSystem Life CycleSystem Life Cycle
Conceptual-PreliminaryDesign
DetailDesign andDevelopment
Productionand/orConstruction
Product Use,Phase out,and Disposal
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Engineering DesignEngineering Design
DESIGN
Control•Legal Aspects•Material Selection•Manufacturing•Life cycle costs•Schedule
End-User•Human factors•Quality•Performance•Aesthetics
Effectiveness•Availability•Serviceability•Maintainability•Reliability
System•Operating environment•Interface w/ other systems•Effect on surroundings•Logistics