Vibration Analysis of Piezoelectric Composite Plate Resting on Nonlinear Elastic Foundations Using Sinc and Discrete Singular Convolution Differential Quadrature Techniques

<div>Variation of the fundamental frequency (<span class="nowrap"><svg height="8.68572pt" id="M200" style="vertical-align:-0.0498209pt" version="1.1" viewbox="-0.0498162 -8.6359 9.97754 8.68572" width="9.97754pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,0,0)"><path d="M719 146L691 147C666 77 657 72 612 72H528C572 125 688 224 688 364C688 546 558 665 384 665C212 665 77 541 77 361C77 221 188 124 239 72H150C110 72 97 80 73 147L46 146L63 0H307L314 18C284 71 178 203 178 360C178 529 256 631 383 631C509 631 588 523 588 363C588 197 485 67 453 18L458 0H701L719 146Z"></path></g></svg>)</span> with the side-to-thickness ratio (<i>a</i>/<i>h</i>), different boundary conditions, and different materials for the square plate (<span class="nowrap"><svg height="15.0796pt" id="M201" style="vertical-align:-3.1815pt" version="1.1" viewbox="-0.0498162 -11.8981 54.2876 15.0796" width="54.2876pt" xmlns="http://www.w3.org/2000/svg" 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Mathematical Problems in Engineering

fig8

Figure 8

Figure 8: Vibration Analysis of Piezoelectric Composite Plate Resting on Nonlinear Elastic Foundations Using Sinc and Discrete Singular Convolution Differential Quadrature Techniques 

Figure 8 | Vibration Analysis of Piezoelectric Composite Plate Resting on Nonlinear Elastic Foundations Using Sinc and Discrete Singular Convolution Differential Quadrature Techniques 