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Robust control of an intelligent truss structure

Robust control of an intelligent truss structure
Robust control of an intelligent truss structure
This paper presents an active damping control of an intelligent truss structure using pair of piezoelectric stack actuators collinear with force transducers and a H¥ robust control strategy. A finite element model of the structure is constructed using the three-dimensional frame elements considering electro-mechanical coupling between the host structure and piezoelectric stack actuator.

In this paper, the active member placement is determined by using the fraction of modal strain energy as an optimal index. The performance objectives and robustness to high frequency unmodeled dynamics are considered in the controller design. The purpose of the controller is to minimize the effect of disturbances on the entire structure. The numerical simulation results demonstrate that the active members of the structure and the robust control strategy can effectively reduce truss vibrations.
active damping control, h¥ robust control, truss structure, piezoceramic stack actuators, finite element method
0854329102
12pp
University of Southampton
Abreu, G.L.C.M.
31e52460-9d7b-4ccd-bd55-4d8da8398b26
Lopes Jr, V.
98be6aea-a79d-489c-975f-ddb13a3bb4e9
Brennan, M.J.
87c7bca3-a9e5-46aa-9153-34c712355a13
Brennan, M.J.
Kovacic, Ivana
Lopes, V.
Murphy, K.
Petersson, B.
Rizzi, S.
Yang, T.
Abreu, G.L.C.M.
31e52460-9d7b-4ccd-bd55-4d8da8398b26
Lopes Jr, V.
98be6aea-a79d-489c-975f-ddb13a3bb4e9
Brennan, M.J.
87c7bca3-a9e5-46aa-9153-34c712355a13
Brennan, M.J.
Kovacic, Ivana
Lopes, V.
Murphy, K.
Petersson, B.
Rizzi, S.
Yang, T.

Abreu, G.L.C.M., Lopes Jr, V. and Brennan, M.J. (2010) Robust control of an intelligent truss structure. Brennan, M.J., Kovacic, Ivana, Lopes, V., Murphy, K., Petersson, B., Rizzi, S. and Yang, T. (eds.) In Recent Advances Structural Dynamics: Proceedings of the X International Conference. University of Southampton. 12pp .

Record type: Conference or Workshop Item (Paper)

Abstract

This paper presents an active damping control of an intelligent truss structure using pair of piezoelectric stack actuators collinear with force transducers and a H¥ robust control strategy. A finite element model of the structure is constructed using the three-dimensional frame elements considering electro-mechanical coupling between the host structure and piezoelectric stack actuator.

In this paper, the active member placement is determined by using the fraction of modal strain energy as an optimal index. The performance objectives and robustness to high frequency unmodeled dynamics are considered in the controller design. The purpose of the controller is to minimize the effect of disturbances on the entire structure. The numerical simulation results demonstrate that the active members of the structure and the robust control strategy can effectively reduce truss vibrations.

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More information

Published date: July 2010
Additional Information: Paper No. 050 (Format - USB Pen Drive)
Keywords: active damping control, h¥ robust control, truss structure, piezoceramic stack actuators, finite element method

Identifiers

Local EPrints ID: 160679
URI: https://eprints.soton.ac.uk/id/eprint/160679
ISBN: 0854329102
PURE UUID: 5f2d77ea-be6e-484b-b9a8-7195e06195b4

Catalogue record

Date deposited: 21 Jul 2010 08:05
Last modified: 18 Jul 2017 12:34

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