No Free Lunch Theorem

As the optimization algorithm itself is not in the focus of this article, but the integration of the hybrid system model and the consideration of residual reliabilities as an objective, the used algorithm wiU only be discussed briefly. Considering the No Free Lunch theorem, further analyzes of the algorithm itself regarding the system structure of aircraft systems is necessary (20). 

Future work will include the optimization of complex aircraft systems based on a Performance Degradation Analysis using the hybrid system model (14). This would allow a multi-point reliability optimization in a single model, leaving the classical top event approach. Additionally, corresponding to the No Free Lunch theorem (20), detailed work considering an optimization algorithm for the structure of aircraft system models itself is essential. 

WoLPERT, D. H., Macready, W. G. 1997, No Free Lunch Theorems for Optimization. IEEE Transactions on Evolutionary Computation, Volume 1, Issue 1, pp. 67-82. 

Wolpert, D. H. Macready, W. G. (1996). No free lunch theorems for optimization. Technical report, Santa Fe Institute and TXN Inc. 

Wolpert, D.H., and Macready, W.G. (1995) No Free-Lunch Theorems for Search, Santa Fe Institute working paper 95-02-010. 

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