
248 Optimization: Algorithms and Applications
9.2.2 Individual Discipline Feasible
In IDF architecture, discipline feasibility is ensured whereas a multidisci-
plinary feasible solution may not be present. The advantage of the IDF is
that different disciplines can be evaluated in parallel. Further discipline
computations are fewer as compared to MDF, and this can be a signicant
advantage because discipline evaluations are often time consuming. In IDF
architecture, coupling variables are handled by the optimizer (Figure 9.5),
which in turn provides design and coupling variables to different disci-
plines. This architecture ...