Weak Fault Signal Detection of Rotating Machinery Based on Multistable Stochastic Resonance and VMD-AMD

<table class="fixed-width table-group" id="tab3"><tr><td><table class="table"><colgroup><col style="width:19.78em"/><col style="width:10.19em"/></colgroup><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr class="thead"><td class="align_left">Experimental parameters</td><td class="align_center">Parameter values</td></tr><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr><td class="align_left">Model of experimental gear</td><td class="align_center">ER-16K</td></tr><tr><td class="align_left">The number of big gear’s teeth on medium speed shaft</td><td class="align_center">100</td></tr><tr><td class="align_left">Rotational speed <br/>Gear box ratio</td><td class="align_center">1500 r/min <br/>39.408867</td></tr><tr><td class="align_left">Sampling frequency</td><td class="align_center">12k Hz</td></tr><tr><td class="align_left">Characteristic frequency of low speed shaft</td><td class="align_center">2.9 Hz</td></tr><tr class="table-tr"><td colspan="2"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Shock and Vibration

tab3

Table 3

Table 3: Weak Fault Signal Detection of Rotating Machinery Based on Multistable Stochastic Resonance and VMD-AMD 