The influence of target function selection on the optimization of winglets for the glider SB 15

Jan Himisch, Kai Rohde-Brandenburger


The present paper is about an investigation into the influence of target function selection on the final results of an automated process for glider optimization. For this purpose the design parameters of a winglet for the glider SB 15 were exemplarily optimized by using different target functions, like minimum drag for a single target lift or a combination of target lifts. Results indicate that the influence of the target function for the used example is less significant than one might expect. Additionally the validation results for the process-chain that was developed are presented: not only proving the capability of the chain to predict drag deltas, but also indicating its limitations for the prediction of absolute drag values.


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