Investigation on Low Frequency Bandgap of Coupled Double Beam with Quasi-Zero Stiffness for Power Transformer Vibration Control

<table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr class="thead"><td class="align_left">Names</td><td class="align_center"><i>k</i><sub>1</sub> (N·m<sup>−1</sup>)</td><td class="align_center"><i>K</i><sub>3</sub> (N·m<sup>−1</sup>)</td></tr><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td class="align_left">PA12-I</td><td class="align_center">1035</td><td class="align_center">2.9982<i>e</i>6</td></tr><tr><td class="align_left">PA12-II</td><td class="align_center">2092</td><td class="align_center">3.2527<i>e</i>6</td></tr><tr><td class="align_left">PA12-III</td><td class="align_center">4150</td><td class="align_center">3.4481<i>e</i>6</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Coefficients of Taylor approximation.</div>

Shock and Vibration

tab3

Table 3

Table 3: Investigation on Low Frequency Bandgap of Coupled Double Beam with Quasi-Zero Stiffness for Power Transformer Vibration Control 