No abstract

A new approach is evaluated for the design of turbomachinery components using existing analysis codes coupled to a generic Artificial Intelligence (AI) software framework called ENGINEOUS. This AI framework uses intelligent search techniques with a small set of basic component design rules to iterate to an optimized solution and to quantify parameter trade-offs. Initial experience with ENGINEOUS indicates that it is a powerful design tool which quickly identifies non-obvious solutions balanced for conflicting multiple goals in a small number of iterations which vary linearly with the number of variables. The solution path and driving logic are easily visible to the designer and a parameter study option can rapidly quantify potential design trade-offs which together allow a critique of the selected design to balance performance against development risks. Because this AI design approach fosters intelligent interface with the designer and is generic, the potential application areas and productivity benefits appear enormous.

Abs tcae tThe study consisted of three major parts:A study was conducted on turboshaftlturboprop engines in a nominal 850 shp size to determine advanced technology payoff in typic.il aircraft missions. Payoff was evaluated V S . a reference engine based on current technology. The results indieatc worthwhile areas of development in compressor and turbine aerodynamic viscous codes, ceramic composite materials, and advanced ceramic recuperators. An advanced simple cycle engine could demonstrate a 20% fuel saving and a 24%

No abstract