Design in the New Millennium Advanced Engineering Environments: Phase 2 (2000) / Chapter Skim
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Expected Future
Expected Future
Pages 21-28
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From page 21... ...
At the preliminary design level, the committee estimates that about onequarter of product and process attributes could be evaluated analytically; this number could increase to one-half during detailed design, depending on the attribute being evaluated. Analytical evaluations would greatly reduce the percentage of attributes requiring experimental refinement through prototypes.
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From page 22... ...
For example, achieving a true physics-based analytical capability would greatly improve (H) the prediction of product attributes throughout the overall process and, thereby, move the product design process from the typical today state toward a DESIGN IN THE NEW MILLENNIUM future perfect state.
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From page 24... ...
For example, rather than creating the geometry of a structural rib one feature at a time, the user will specify a minimum set of unique dimensions, and a generic template will automatically create the rest of the product specification. Design tables will be used for part regeneration, and design templates for processing.
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From page 25... ...
Nonrecursive design will be possible for less complex projects and generalpurpose methods, but recursive design with design guidance will still be required for more complex problems and specialpurpose methods. With expert systems, unique parts and simple assemblies will be created automatically based on functional descriptions.
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From page 26... ...
Reductions in total process time will be limited to about 20 percent, with similar reductions in cost. Although physical prototypes will still be necessary for highly complex projects and special-purpose methods, the speed of iteration and improved visualization should reduce their number by at least 20 to 30 percent, with similar reductions in the amount of rework associated with experimental refinement during prototype development and preparation for production (steps 6 and71.
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From page 27... ...
For general-purpose methods applied to highly complex projects, it will be possible to collapse steps 3 and 4 (concept development and preliminary design) into a single step for all but truly unique products.
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From page 28... ...
Until additional funding is made available to invigorate the recommended national partnership for AEEs, government agencies should make the most efficient use of the limited resources now available for the development of AEE technologies and systems by focusing their efforts on the types of missions and products that can benefit most from AEEs and on functional areas that are DESIGN IN THE NEW MILLENNIUM lagging behind the rapid advances being made in other areas, such as the speed, size, and cost of computer hardware. Research and development should be focused on the following areas: comprehensive processes for project design and development that integrate the design of mechanical systems with electrical system design and software development general-purpose methods of analyzing cost and determining the effects of risk and uncertainty to reduce the need for project-specific cost and risk analysis tools physics-based analysis of mission-specific phenomena if first-of-a-kind missions are a high priority Recommendation 3-2.
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