CEAS EuroGNC 2022
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Eigenstructure Assignment Accounting for Eigenmode Participation of Control Inputs
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| W. Meyer-Brügel |
Research Scientist, Flight Mechanics, Flight Control and Aerolelasticity, Marchstr. 12, 10587 Berlin, Germany. | | F. J. Silvestre |
Professor, Flight Mechanics, Flight Control and Aerolelasticity, Marchstr. 12, 10587 Berlin, Germany. |
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| Abstract:
Eigenstructure Assignment is a powerful design technique for full state or output feedback based MIMO control systems. It is possible to shape not only the system's closed loop dynamics, but also its eigenvectors - at least partially to an extent depending on the number of available control inputs. Common treatments of the method in literature further reveal a solution to the problem, when the desired eigenstructure refers to the systems output directions (i.e. the amount to which certain output values participate on the various eigenmodes) rather than to the eigenvectors themself directly. However, due to the cross coupling nature of the gain matrix, the physical system inputs are still influenced by multiple eigenmodes, even if the outputs are perfectly decoupled. This may be unfavorable, if certain dynamic properties of the actuation inputs are required (e.g. a low frequent change of thrust input). In this work the concept of eigenstructure assignment is extended to the input variables. The described method allows for a flexible formulation of structural requirments in terms of input and output variables in arbitrary combination.
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| Keywords: Eigenstructure Assignment; Input Decoupling; Flight Control |
 View PDF CEAS-GNC-2022-051 |
| W. Meyer-Brügel, F. J. Silvestre: Eigenstructure Assignment Accounting for Eigenmode Participation of Control Inputs. Proceedings of the 2022 CEAS EuroGNC conference. Berlin, Germany. May 2022. CEAS-GNC-2022-051.
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| BibTeX entry:
@Incollection{CEAS-GNC-2022-051,
authors = {Meyer-Brügel, W. and Silvestre, F. J.},
title = {Eigenstructure Assignment Accounting for Eigenmode Participation of Control Inputs},
booktitle = {Proceedings of the 2022 {CEAS EuroGNC} conference},
address = {Berlin, Germany},
month = may,
year = {2022},
note = {CEAS-GNC-2022-051}
}
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