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Robust control of an intelligent truss structure

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)


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


Local EPrints ID: 160679
ISBN: 0854329102
PURE UUID: 5f2d77ea-be6e-484b-b9a8-7195e06195b4

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

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Author: G.L.C.M. Abreu
Author: V. Lopes Jr
Author: M.J. Brennan
Editor: M.J. Brennan
Editor: Ivana Kovacic
Editor: V. Lopes
Editor: K. Murphy
Editor: B. Petersson
Editor: S. Rizzi
Editor: T. Yang

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