T. Raible, D. Jacob

A risk lowering optimization method is used for the preliminary design of a two-stage-to· orbit (TSTO) space transportation system. This method combines a multi-membered genetic algorithm with a penalty function that penalizes design sensitivities concerning the physical computation models. The spaceplane concerned has horizontal take-off and landing facility, and consists of an air-breathing lower stage and a rocket propelled upper stage. Optimizations are carried out for single stage design as weD as overall design, with and without considering design sensitivities. The results show that both stages are highly sensitive to model inaccuracies which can have tremendous effects on the mission performance. However, this sensitivity can be greatly reduced by integrating risk reducing techniques into the design and particularly into the optimization process.

CEAS Conference on Multidisciplinary Aircraft Design and Optimization; Köln; 2001

Book Chapter

englisch

14,8 x 21,0 cm, 15 Seiten

DGLR-Bericht, 2001, 2001-05, CEAS Conference on Multidisciplinary Aircraft Design and Optimization; S.139-153; 2001; Deutsche Gesellschaft für Luft- und Raumfahrt - Lilienthal-Oberth e.V., Bonn

NA

tradeoffs, spacecraft design, astronautics, multidisciplinary design optimisation

Bestellbar

2001