Study on the Coupling Frequency of Double-Sided Submerged Ring-Stiffened Cylindrical Shells

<table class="table-group" id="tab4"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td class="align_left">Modal order</td><td class="align_center">Exp (Hz)</td><td class="align_center">Comp (Hz)</td><td class="align_center">Error %</td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td class="align_left">(1, 2)</td><td class="align_center">101.6</td><td class="align_center">100.1</td><td class="align_center">−1.48</td></tr><tr><td class="align_left">(1, 3)</td><td class="align_center">113.4</td><td class="align_center">109.6</td><td class="align_center">−3.35</td></tr><tr><td class="align_left">(1, 4)</td><td class="align_center">203</td><td class="align_center">204.4</td><td class="align_center">0.69</td></tr><tr><td class="align_left">(2, 3)</td><td class="align_center">220.5</td><td class="align_center">218.0</td><td class="align_center">−1.13</td></tr><tr><td class="align_left">(2, 4)</td><td class="align_center">243.6</td><td class="align_center">244.3</td><td class="align_center">0.29</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Natural frequencies of bare cylindrical shells near free surface (<i>H</i> = 0.21 m).</div>

Shock and Vibration

tab4

Table 4

Table 4: Study on the Coupling Frequency of Double-Sided Submerged Ring-Stiffened Cylindrical Shells 