Research Article

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

Table 11

Comparison between the normalized frequencies and thickness h for the simply supported plate ().

Normalized frequencies
H

0.0151.612292.90196113.5468144.5142165.159180.6427
0.0251.787493.21732113.9323145.0047165.7197181.2559
0.0351.787593.2175113.9325145.005165.7200181.2563
0.03551.787593.2175113.9325145.005165.7200181.2563
0.0451.787593.2175113.9325145.005165.7200181.2563
0.0551.787593.2175113.9325145.005165.7200181.2563
0.0751.787593.2175113.9325145.005165.7200181.2563