Stability Margin Analysis in Multiobjective Design: Application to an Aerospace Launcher
| Authors: | Abbas-Turki Mohamed, École Supérieure d'Electricité, France, Metropolitan
Duc Gilles, École Supérieure d'Electricité, France, Metropolitan
Clement Benoît, Centre National d'Etudes Spatiales, France, Metropolitan |
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| Topic: | 7.3 Aerospace |
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| Session: | Nonlinear Dynamics and Robust Control in Aerospace Systems |
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| Keywords: | Gain margin, Phase margin, Delay margin, KYP lemma. |
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Abstract
Abstract: To check the stability margins the designers commonly use the graphicalmethod which is very constraining when the verification must be done severaltimes, as for instance when a routine is to be developped. In this paper a practicalmethod is proposed, based on the Kalman-Yakubovich-Popov (KYP) lemma. Thismethod avoids the conservatism induced by H-infinity analysis and a huge calculationas the one derived by mu-analysis.
