By National Research Council, Division on Engineering and Physical Sciences, Board on Manufacturing and Engineering Design, National Materials Advisory Board, Committee on Accelerating Technology Transition
ISBN-10: 0309093171
ISBN-13: 9780309093170
ISBN-10: 0309545838
ISBN-13: 9780309545839
Accelerating the transition of latest applied sciences into platforms and items may be the most important to the dept of Defenses improvement of a lighter, extra versatile battling strength. present lengthy transition times-ten years or extra is now typical-are attributed to the complexity of the method. to aid meet those demanding situations, the dept of safety requested the nationwide study Council to ascertain classes realized from speedy know-how purposes by means of built-in layout and production teams. This record provides the result of that examine, which used to be in response to a workshop held to discover those winning situations. 3 key components emerged: making a tradition for innovation and speedy know-how transition; methodologies and ways; and permitting instruments and databases.
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Extra info for Accelerating technology transition: bridging the valley of death for materials and processes in defense systems
Sample text
Based on incomplete specifications, an inefficient selection cycle ensued, and a candidate material was offered, evaluated, and rejected. The specifications were then refined to include new, albeit incomplete, information, and the cycle was repeated until a suitable material was identified. It needs to be noted that increased reliance on functional requirements rather than on specifications can only be implemented by having all stakeholders involved and by sharing information, as discussed in the subsection on Best Practice 1.
1). Using the team-based approach with parallel development and constant iteration of design cycles, a new product for the Formula 1 market could be produced, tested, and certified for use in approximately 8 months between its initial development and volume production. This time frame is in stark contrast to the dramatically longer period for the military aerospace market, even though the particular systems and components are remarkably similar. The key difference is in the level of risk that the two customers are willing to take, which influences every aspect of the enterprise and, for military aerospace systems, eliminates the possibility of using the concurrent engineering-plus concept.
Knowledge of cost and environmental issues at the design stage is invaluable, since 70 to 90 percent of cost and emissions are determined by the product design; the remainder is due to control of the manufacturing process. The construction and use of process-based technical cost models, described by Joel Clark of the International Motor Vehicles Program at the Massachusetts Institute of Technology (MIT), allows the estimation of manufacturing costs. Such models are especially important for defense systems, since the cost of the testing and evaluation of components made with new materials can equal one-third of the cost of manufacturing.