Bilevel Integrated System Synthesis with Response Surfaces
Srinivas Kodiyalam, Jaroslaw Sobieszczanski‐Sobieski · AIAA Journal · 2000
The use of response surface approximations with the BLISS method is explored. BLISS is a MDO method for decomposition based optimization of engineering systems, that involves system optimization with relatively small number of design variables and a number of subsystem optimizations that could each have a large number of local variables. In BLISS, the optimum sensitivity analysis data are used to relate the subsystem optimization solutions with the system optimizations. Instead, with the proposed procedure, polynomial response surface approximations using either the system analysis or the subsystem optimization results are used. The response surface construction process is well suited for computing in a concurrent processing environment. The iSIGHT framework is used in implementing and evaluating this procedure on a conceptual level aircraft and ship design problem. 2.