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Using Explicit Hybrid Stabilization Method for Modeling the Control System of Piezolaminated Shell

Credit to Download: 1 | Page Numbers 8 | Abstract Views: 1057
Year: 2012
COI code: ISAV02_122
Paper Language: English

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Authors Using Explicit Hybrid Stabilization Method for Modeling the Control System of Piezolaminated Shell

  H Salmani - Department of Aerospace Engineering, Sharif University of Technology, Azadi Ave.,
S. A. Hosseini Kordkheili -
S.Saray GordAfshari -

Abstract:

An explicit hybrid stabilization method is utilized together with a reduced 2×2 order integration scheme to stabilize spurious zero energy modes from the sub-integrated degenerated shell element.Overcoming to this severe phenomenon is achieved after employing appropriate contravarianthigher order stress modes. The relevant finite element formulation of the piezolaminated ninenoddedshell element is then derived for vibration control of smart structures. The resulting formulationhas been implemented in a finite element code which is subsequently used to model and analysesome typical problems. Considering the complete coupled structural model achieved using our novel method, active control of free and forced vibrations of piezoelectric smart shell under predefinedexcitations is studied using state space representation of the piezolaminated shell system. Thecontrol gains and piezoelectric actuation voltages which provide vibration control are determined using pole placement methods. Harmonic excitation and moving load problems are considered in the forced vibration control and the active vibration suppression is achieved using strain feedback

Keywords:

explicit hybrid stabilization, piezoelectric, nine-nodded shell element, Pole placement vibration control

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COI code: ISAV02_122

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Salmani, H; S. A. Hosseini Kordkheili & S.Saray GordAfshari, 2012, Using Explicit Hybrid Stabilization Method for Modeling the Control System of Piezolaminated Shell, 2nd International Conference on Acoustics and Vibration, تهران, دانشگاه صنعتي شريف, https://www.civilica.com/Paper-ISAV02-ISAV02_122.htmlInside the text, wherever referred to or an achievement of this article is mentioned, after mentioning the article, inside the parental, the following specifications are written.
First Time: (Salmani, H; S. A. Hosseini Kordkheili & S.Saray GordAfshari, 2012)
Second and more: (Salmani; Hosseini Kordkheili & GordAfshari, 2012)
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Type: state university
Paper No.: 12892
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