1-28-08 - FEiME Design Designandreverseengineering

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Unformatted text preview: FEiME Design Designandreverseengineering Procedureforareverseengineeringdissection 1/28/07 Applicationofknowledgeandspecializedskillstoproducesomethingthat meetsasetofconstraints Reverseengineering o Asystematicapproachforanalyzingthedesignofexistingdevices MechanicalDissection o TheGirststepinreverseengineering DissectionProcedure 1. ObservedeviceanddeGineitsfunctionalspeciGications 2. Makeeducatedguessesabouthowitworks 3. Dissectproduct+studyitsinnerworkings Progressfromoveralldevicetosubsystemtocomponents 4. Comparepredictions&realityandlookforsuggestionsfor improvementorredesign Step1 o Examinethesystem&observeitfunctioning o DeGineFunctionalspecsfromcustomerperspective o DeGinephysicalprinciplesgoverningoverallsystemoperation Example:Black&Decker o FunctionalSpec1:providetoolforputtinginorremovingscrewswith minimaleffort o FunctionalSpec2:Phillipshead&slottedscrews o FunctionalSpec3:Providemeansofhangingonpegboard o FunctionalSpec4:Workinmanualandautomaticmode o FunctionalSpec5:light&handheld o Constraint1:poweredwithoutwiresforremotelocationuse o Constraint2:Lookattractive&haveasecurefeel o Constraint3:Safety:requiresinterventionforpowering o Constraint4:Affordabletoindividuals.Littleornomaintenancecost Fishbonediagram FEiME Dissectionatsubsystemlevel 1/30/07 Documentdisassemblyprocedure DeGinesubsystems DeGinesubsystemfunctionalspecs&constraints DeGiningphysical/mathematicalmodelsthatapply(model=equation) Ex:ElectricScrewdriver 1. 2. 3. 4. 5. 6. 7. Interfaces Toolinterfacew/drivesystem Drivesystem Powerswitch Case ToolDelivertorque Drivesystem(transmission&stateofdriver) Powerswitch Energystorage Case Hanger Manual/powerswitch a. Nofurtherdisassembly Step3Dissectionatcomponentlevel Document DeGinecomponents DeGinecomponentfunctionalspeciGicationsandconstraints DeGineinterfaces DeGinemodel Materialselectionandfabrication http://home.howstuffworks.com/inside-sd.htm/printable ...
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This note was uploaded on 04/07/2008 for the course EN 530.101.02 taught by Professor Okamura during the Spring '08 term at Johns Hopkins.

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