Free Vibration Analysis of Arbitrary-Shaped Plates Based on the Improved Rayleigh–Ritz Method

<table class="table-group" id="tab1"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td class="align_left"> </td><td class="align_center">Clamped</td><td class="align_center">Simply supported</td><td class="align_center">Free</td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td class="align_left"><i>k</i> (N/m<sup>2</sup>)</td><td class="align_center">∞</td><td class="align_center">∞</td><td class="align_center">0</td></tr><tr><td class="align_left"><i>K</i> (N/rad)</td><td class="align_center">∞</td><td class="align_center">0</td><td class="align_center">0</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Classical boundary conditions corresponding spring values.</div>

Advances in Civil Engineering

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Table 1

Table 1: Free Vibration Analysis of Arbitrary-Shaped Plates Based on the Improved Rayleigh–Ritz Method 