Steel and Composite Structures

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The effect of voltage and nanoparticles on the vibration of sandwich nanocomposite smart plates

  • Farokhian, Ahmad (Mechanical Engineering group, Pardis College, Isfahan University of Technology)
  • Received : 2019.10.15
  • Accepted : 2020.01.27
  • Published : 2020.03.10
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Abstract

Vibration analysis in nanocomposite plate with smart layer is studied in this article. The plate is reinforced by carbon nanotubes where the Mori-Tanaka law is utilized for obtaining the effective characteristic of structure assuming agglomeration effects. The nanocomposite plate is located in elastic medium which is simulated by spring element. The motion equations are derived based on first order shear deformation theory and Hamilton's principle. Utilizing Navier method, the frequency of the structure is calculated and the effects of applied voltage, volume percent and agglomeration of Carbon nanotubes, elastic medium and geometrical parameters of structure are shown on the frequency of system. Results indicate that with applying negative voltage, the frequency of structure is increased. In addition, the agglomeration of carbon nanotubes reduces the frequency of the nanocomposite plate.

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