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Structural Engineering and Mechanics Volume 12, Number 2, August 2001 , pages 135-156 DOI: https://doi.org/10.12989/sem.2001.12.2.135 |
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Vibration control of laminated composite plates using embedded smart layers |
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J.N. Reddy and S. Krishnan(U.S.A.)
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| Abstract | ||
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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. | ||
| Key Words | ||
| analytical solutions; composite plates; finite element solutions; third-order plate theory; vibration control. | ||
| Address | ||
| J.N. Reddy and S. Krishnan, Department of Mechanical Engineering, Texas A&M University, College Station, TX 77843-3123, U.S.A. | ||