L20 - Conceptual Framework for Planned Experimentation...

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Conceptual Framework for Planned Experimentation Chapter 15 Tolga Tezcan
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Introduction
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SPC/DOE Relationship SPC DOE Understand the process Lower Variance: more predictable under control
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Role of DOE in the Design Process Parameter Design: By using design-of-experiments Testing vs Experimentation Experimentation for parameter selection Optimize design criteria and performance measure Testing- or life Testing Life expactancy in field conditions
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Issues in Planned Experimentation As important as analysis Garbage in garbage out Purpose of experimental work: discover direction of change
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Mathematical Model Selecting the appropriate arrangement of test points within the space defined by the independent variables ) , , , , , ( 1 2 1 n k x x x f θ θ η = ε θ θ + = ) , , , , , ( 1 2 1 n k x x x f y 2 2 2 1 1 x x θ θ η + =
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Which one is better? It is more desirable to conduct a series of smaller interconnected experiments
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Revelation of the effects of change If a variable effect varies with the conditions of the process.
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