Vibration characteristics of double-piezoelectric-nanoplate-systems

Saeid Reza Asemi; Ali Farajpour

Vibration characteristics of double-piezoelectric-nanoplate-systems

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Author(s): Saeid Reza Asemi ¹ and Ali Farajpour ²
- Affiliations: 1: Department of Environment, Damavand Branch, Islamic Azad University, Damavand, Iran;
  2: Department of Mechanical Engineering, College of Engineering, University of Tehran, Tehran, Iran
Source: Volume 9, Issue 4, April 2014, p. 280 – 285
DOI: 10.1049/mnl.2013.0741 , Online ISSN 1750-0443

Received 20/12/2013, Accepted 17/03/2014, Published 11/04/2014

In this reported work, the vibration response of a double-piezoelectric-nanoplate-system (DPNPS) under an external electric voltage is investigated. The two piezoelectric nanoplates are coupled by a polymer matrix. Small scale effects are taken into consideration using the non-local elasticity theory. Hamilton's principle is employed to derive the differential equations of motion. Explicit closed-form expressions are derived for the natural frequencies and critical electric voltages of the DPNPS. The numerical results are presented for both in-phase and out-of-phase vibrational modes. It is shown that the natural frequencies of the DPNPS are quite sensitive to the vibrational mode and non-local parameter. The present work is likely to prove very useful in the designing of micro-/nanodevices using smart nanocomposite.

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Vibration characteristics of double-piezoelectric-nanoplate-systems

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