Finite Element Analysis and Vibration Control of a Deep Composite Cylindrical Shell Using MFC Actuators

<table class="table-group" id="tab5"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td align="left" rowspan="2">Mode number</td><td align="center" colspan="2">Frequency (Hz)</td><td align="center" rowspan="2">Damping</td></tr><tr class="thead"><td align="center">Experiment</td><td align="center">FEM (Present)</td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td align="left">Shell mode 1</td><td align="center">53.4</td><td align="center">52.12</td><td align="center">1.24</td></tr><tr><td align="left">Shell mode 2</td><td align="center">95.3</td><td align="center">103.46</td><td align="center">0.77</td></tr><tr><td align="left">Shell mode 3</td><td align="center">170.2</td><td align="center">171.43</td><td align="center">0.38</td></tr><tr><td align="left">Shell mode 4</td><td align="center">186.1</td><td align="center">193.05</td><td align="center">0.36</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

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Table 5

Table 5: Finite Element Analysis and Vibration Control of a Deep Composite Cylindrical Shell Using MFC Actuators 