Journal
APPLIED MATHEMATICAL MODELLING
Volume 38, Issue 2, Pages 722-737Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.apm.2013.07.004
Keywords
Finite volume; Smart beam; Piezoelectric; Active vibration control
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This paper presents a finite volume (FV) formulation for the free vibration analysis and active vibration control of the smart beams with piezoelectric sensors and actuators. The governing equations based on Timoshenko beam theory are discretized using the finite volume method. For the purpose of forced vibration control of beam structures, the negative velocity feedback controller is designed for the single-input, single-output system. To achieve the best effect, the piezoelectric sensors and actuators are coupled with the host structure in different positions and then the performance of the designed control system is evaluated for each position. In the test examples, first the shear locking free feature of the present formulation is demonstrated. This has been performed by doing static and natural frequency analysis of some reference models. Then, the capability of the proposed method for the prediction of uncontrolled forced vibration response and active vibration control of a beam structure is studied. (C) 2013 Elsevier Inc. All rights reserved.
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