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Type: Conference paper
Title: Nonlinear active vibration absorber design for flexible structures
Author: Chen, L.
He, F.
Sammut, K.
Cao, T.
Citation: Proceedings of the 2002 IEEE International Conference on Control Applications : September 18-20, 2002, Glasgow, Scotland, U.K. / sponsored by the IEEE Control Systems Society (CSS), 2002, Vol. 1, pp.321-326
Publisher: IEEE
Issue Date: 2002
ISBN: 0780373863
Conference Name: IEEE International Conference on Control Applications (2002 : Glasgow, Scotland)
Statement of
Lei Chen, Fangpo He, K. Sammut and Tan Cao
Abstract: A new technique, called active vibration clamping absorber (VCA), for vibration suppression in flexible structures is proposed and investigated in this paper. The technique uses a quadratic-modal-positive-position-feedback (QMPPF) strategy to design a simple second-order nonlinear controller that can suppress the vibration of structures at various resonant points. The proposed QMPPF strategy uses a nonlinear modal control to transfer the vibration energy from the vibrating system to another sacrificial absorber so that large amplitude vibrations in the main structure can be clamped within tolerable limits. The VCA can be constructed using PZT sensors/actuators that are controlled by a DSP controller. The effectiveness of the VCA design based on a QMPPF strategy is validated under multiple-modes control on a flexible vertically-oriented cantilever beam system with a single sensor and actuator. The simulation and experimental results reveal that the proposed strategy is a potentially viable means for real-time control of vibration in large flexible structures.
Description: Copyright © 2002 IEEE
RMID: 0020076806
DOI: 10.1109/CCA.2002.1040206
Appears in Collections:Mechanical Engineering conference papers

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