Presentation on theme: "1 SPIRIT Silicon Prairie Initiative on Robotics in Information Technology Modern Engineering Constraints."— Presentation transcript:
1 SPIRIT Silicon Prairie Initiative on Robotics in Information Technology Modern Engineering Constraints
2 SPIRIT Concurrent Engineering Design teams include others in addition to engineers Manufacturing experts Marketing and sales professionals Reliability experts Cost accountants Lawyers Concern with all these areas and their impact on the design is concurrent engineering.
3 SPIRIT -ilities Concurrent engineering demands consideration of the complete life cycle of the product, process, or project. Design for: Manufacturability Affordability Reliability Sustainability Quality
4 SPIRIT Can this Design Be Made? (DFM) The design of a product has an ENORMOUS impact on its manufacture. A basic DFM methodology Estimate the cost for a given alternative Reduce the costs of components Reduce the costs of assembly Consider the effects on other objectives If not acceptable, revise the design REPEAT …
5 SPIRIT Design for Assembly (DFA) Limit the number of components Using standard components Use a base component on which other components can be located Use components the facilitate retrieval and assembly Maximize accessibility during manufacturing and maintenance
6 SPIRIT Affordability Engineering Economics The time value of money Money obtained sooner is more valuable than money obtained later. Money spent sooner is more costly than money spent later. Design decisions made today will translate into streams of “financial events” in the future.
7 SPIRIT Arthur M. Wellington’s definition of engineering “the art of doing that well with one dollar which any bungler can do with two.”
8 SPIRIT Reliability To an engineer: the probability that an item will perform its function under stated conditions of use and maintenance for a stated measure of a variate. Incidental failure Catastrophic failure Maintainability Parts easily accessed and repaired Redundancy
9 SPIRITSustainability One generation’s progress can be the next’s nightmare. Environmental responsibility is incorporated directly into the ethical obligations of engineering. Air and water quality Energy consumption Disposal Life cycle assessment analysis Inventory Impact Improvement
10 SPIRIT Design for Quality All of the –ilities are components of the design for quality A quality design satisfies all constraints Fully functional within the performance specifications Meets the objectives as well or better than alternative designs All the work of the design process is directed to design for quality.