Shape control of thin deformable mirror with distributed piezoelectric sensors and actuators

This paper presents shape control of a thin piezoelectric deformable mirror in order to compensate the form errors caused by disturbances. The finite element model describing the dynamics of the mirror was obtained by Hamilton’s principle and discretization was performed by nine nodes thin shell ele...

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Bibliographic Details
Published in:MATEC web of conferences 2022, Vol.371, p.2005
Main Authors: Tagui, Ahmed, Sanbi, Mustapha
Format: Article
Language:English
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Summary:This paper presents shape control of a thin piezoelectric deformable mirror in order to compensate the form errors caused by disturbances. The finite element model describing the dynamics of the mirror was obtained by Hamilton’s principle and discretization was performed by nine nodes thin shell element according to the Kirchhoff-Love theory. The state space approach was used to generate matrices for control procedure. Because of the multivariable nature of the control problem involved in such structures and noise, the adaptive LQG-Kalman controller with multiple input-multiple output design was implemented to control the shape of the mirror. The proposed approach and related perspectives were finally discussed.
ISSN:2261-236X
2261-236X
DOI:10.1051/matecconf/202237102005