Using Teardown Analysis as a Vehicle to Teach (使用拆卸分析作为工具来教).pdf
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Int. Journal of Eng. Education, Vol. 25, No. 1, pp. 42-52, 2009
Using Teardown Analysis as a Vehicle to Teach Electronic Systems
Manufacturing Cost Modeling
PETER SANDBORN, JESSICA MYERS, THOMAS BARRON, AND MICHAEL MCCARTHY
CALCE Center for Advanced Life Cycle Engineering
Department of Mechanical Engineering
University of Maryland, College Park, MD 20742
This paper describes the use of product teardowns in an electronic systems cost modeling course at the University
of Maryland. As part of a semester-long project, each student in the course chooses a product and determines the
manufacturing cost of the product using a combination of top-down cost analysis (to determine what the product
must cost) and a detailed bottoms-up model (that students calibrate using the top-down analysis). Products
considered by students range from complex systems such as mobile phones to relatively simple systems such as
memory sticks and McDonald’s Happy Meal® toys. Using product teardowns and reverse engineering ideas has
proven to be an effective vehicle for educating student s on practical manufacturing cost modeling of systems and
complements typical engineering economics analysis.
Keywords: teardowns, reverse engineering, product dissection, cost modeling, top-down, bottoms-up, electronics
INTRODUCTION
Twenty years ago many engineers involved in the design of electronic systems took, at best, a secondary
interest in the cost effectiveness of their design decisions; that was someone else’s job or an issue to be addressed
after the initial release of the product.1 Today the world is changing.
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