Modal Analysis for a Rod-Fastened Rotor considering Contact Effect Based on Double Fractal Model

<table class="table-group" id="tab2"><tr><td><table class="table"><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr class="thead"><td class="align_left">Case</td><td class="align_center">Pretightening force, <i>F</i><sub>pre</sub> (<i>N</i>)</td><td class="align_center">Nominal contact pressure, <i>P</i><sub>0</sub> (MPa)</td></tr><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td class="align_left">1</td><td class="align_center">33750</td><td class="align_center">1.492</td></tr><tr><td class="align_left">2</td><td class="align_center">56250</td><td class="align_center">2.487</td></tr><tr><td class="align_left">3</td><td class="align_center">113400</td><td class="align_center">5.013</td></tr><tr><td class="align_left">4</td><td class="align_center">228600</td><td class="align_center">10.106</td></tr><tr><td class="align_left">5</td><td class="align_center">282186</td><td class="align_center">12.475</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Different pretightening forces applied on the tie rod set 2 and tie rod set 3.</div>

Shock and Vibration

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Table 2

Table 2: Modal Analysis for a Rod-Fastened Rotor considering Contact Effect Based on Double Fractal Model 