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Publications in Scientific Journals:

M. Hemedi, A. Schirrer, C. Westermayer, M. Kozek:
"Integrated Input-output Selection Strategy for Robust Control of Complex Parameter Depending Systems";
Journal of System Design and Dynamics (invited), 5, Special Issue of Motion and Vibration Control 2010 I (2011), 5; 1106 - 1118.



English abstract:
The selection of optimal inputs and outputs from larger candidate sets is an important
prerequisite step to enable an effective design of a robust control law. This is especially
true for active damping of complex and high-dimensional multi-input multi-output systems
(MIMO) with flexible modes. Existing optimal selection strategies are commonly
based on a single nominal system model and cannot explicitly consider parameter variations
in the system. Such nominally optimal selection, however, may perform poorly
for a different parameter setting and thus deteriorate achievable robust performance.
The proposed integrated input-output (I/O) selection strategy overcomes this problem
by explicitly considering a set of systems covering the range of relevant parameter
variation. It is structured in three consecutive selection steps, where only the subset of
accepted candidates is fed into the subsequent selection; thus, it is also computationally
efficient. An additional advantage is a quantitative ranking of the final candidates,
which enables the control engineer to make an optimal I/O choice. The method is illustrated
by a flexible beam example as well as a blended wing-body passenger aircraft
model.

Keywords:
Optimal I/O Selection, Multi-Model Approach, Multi-Stage Treatment, Flexible Structure, Robust Control, Blended Wing Body Aircraft


"Official" electronic version of the publication (accessed through its Digital Object Identifier - DOI)
http://dx.doi.org/10.1299/jsdd.5.1106


Created from the Publication Database of the Vienna University of Technology.