Structural Engineering and Mechanics

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Vibration control of laminated composite plates using embedded smart layers

  • Reddy, J.N. (Department of Mechanical Engineering, Texas A&M University) ;
  • Krishnan, S. (Department of Mechanical Engineering, Texas A&M University)
  • Published : 2001.08.25
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Abstract

Analytical solutions and finite element results of laminated composite plates with smart material layers embedded in them are presented in this study. The third-order plate theory of Reddy is used to study vibration suppression characteristics. The analytical solution for simply supported boundary conditions is based on the Navier solution procedure. The velocity feedback control is used. Parametric effects of the position of the smart material layers, material properties, and control parameters on the suppression time are investigated. It has been found that (a) the minimum vibration suppression time is achieved by placing the smart material layers farthest from the neutral axis, (b) using thinner smart material layers have better vibration attenuation characteristics, and, (c) the vibration suppression time is larger for a lower value of the feedback control coefficient.

Keywords

Acknowledgement

Supported by : Army Research Office(ARO)

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