L02. Bow-Tie Hierarchy and Define the Function

L02. Bow-Tie Hierarchy and Define the Function - EGR10....

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EGR10. Introduction to Engineering “Problems Engineers Solved” Fall 2008 Lecture 02. Establishing the Bow Tie Hierarchy and Defining the Functions
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Lectopia The url for last week’s lecture is: http://lectopia.oit.duke.edu/lectopia/lectopia.lasso?ut=196&id=9669
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Slide 1. How Did Engineers Solve the “move fluid from a lower potential energy to a higher potential energy” Problem? “Macro” Device Sub  Component Level 1 “O”  Seat  Ring Diaphragm  pump Ball Check  Valve Abrasion  of “O”  Ring Reduction/Los s of Pumping Leakage of  Fluid “Macro” Device Sub  Component Level 1 Sub Component Level 2 Sub Component Level 2 Neal Simmons David Needham
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The “Macro” Device Diaphragm pump The “Macro” Device
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The Sub-Level 1 Component Sub Component Level 1 Ball Check Valve
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Sub Component Level 2 The Sub-Level 2 Component “O” Ring Seal
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Defining the Functions Having drafted out the Bow-Ties we can now establish the Functions of each of the scales. As you can probably tell, you have already started to Define the Functions of each device and component, but let’s look at it in a bit more detail. Let’s start with our global “Engineering is….” statement and make it more specific
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Making our global statement specific “Engineering is… a series of Devices and Sub Components and/or Processes Designed with materials That overcome physical and chemical limitations to create function (action)
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“Engineering is . .” Statement: Macro The Diaphragm Pump is…. . a Device with Sub Components
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L02. Bow-Tie Hierarchy and Define the Function - EGR10....

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