2.009 Product Engineering Processes!"you have to work hard to get your thinking clean to make it simple. !Steve Jobs, 1955-2011"thinking is the hardest work there is, which is probably the reason why so few engage in it. !Henry Ford, 1863-1947"2.009 Product engineering processes!Today!"Product architecture structure the problem""But first…!A mini quiz"Put your name on the index card""List two words you should avoid when referring a !design during a critique."Mini quiz results!Key attribute and specification: treeFort"attribute" metric" unit" value" owner"smells like adventure smell ? ? RM"install in a timely manner ? ? ? SB""survive multiple seasons pass cycle testing of (10min hot H20, 10min cold H20) x20 ? ? SP"adventure-someness?"product life, defined by season cycle test"excitement during use longevity?"fort installation time"ease of installation?"hr/treeFort binary"pass"installation time/module "installation person time/module "s/module person s/module seasons">5"2-3 cycle test of (10min hot H20, 10min cold H20) x20"during installation? % of users > 80Professional Ethics!wait wait, don’t tell me: bluff the listener"number true"Product architecture!Definition"the organization or chunking of the products functional elements, and the definition of the interfaces between these elements.""(functional and physical decomposition)"Product architecture!Purpose"The architecture and product specifications together define the structure/framework of the product.!"The architecture is an important vehicle for organizing and focusing team activities.""""Chapter 10 (5th edition)"Product architectures!Two fundamental types"Modular """Integral""Product architecture 1!Hand power tools"Several different tools for same customer segment" "Reverse engineering exercise"Blank piece of paper, name on top of page"Draw the circuit for the drill"Collect papers after 4 minutes"Please DO NOT look at your neighbor’s work""Product architecture 1!Hand power tools"Modular product architecture"Modules are functionally self contained"Component interfaces well defined"Low packing density"High volume, commodity elements"Several different tools for same customer segment"Product architecture 2!Hand power tools"""Integrated product architecture"components designed or adapted for the specific product"geometric or functional relationships tightly coupled"Individual tool designed for a specific market"Product architecture!Drill performance comparisons"Characteristic Integral Modular weight"1.2 (2.0 with batteries)"charge time"0.2"power/weight"2.5"purchase price"~8-10"Product architecture 3!Hand power tools"Several different tools for same customer segment"Modular architecture!Advantages"Task allocation and out-sourcing""Economies of scale""Reuse/standardization for developing new products""Maintenance""Adaptation/mass customization (combinatorial design)""Integrated architectures!Advantages"Performance: modularity can mean performance sacrifices especially when performance is f(size, shape, mass)""It is easier to optimize overall system with an integrated architecture"Product architecture decision!Key role in defining what the product can be"modular"integral"Product architecture decision!Key role in defining what the product can be"Bang and Olufsen"Apple"Samsung"Sony"often linked with corporate identity"Product architecture!Innovation through a new architecture"change color and style for ‘price of evening dress’"$10,000"~1800 lb."0-37 mph in 6 seconds, ~80 mph max."40 mpg combined"first sold in?"1998"Finally!reminders"peer review 2, due today at 9 PM""codes of conduct (final emailed to me noon Tuesday)""assembly 11 PM Oct. 28, (red, green, silver, blue)!assembly 11 PM Oct. 30, (yellow, pink, orange, purple)""in-class presentations Oct. 29, Oct. 31""technical review with alpha prototypes, Nov.
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