Fault Diagnosis of Spindle Device in Hoist Using Variational Mode Decomposition and Statistical Features

<table class="table-group" id="tab6"><tr><td><table class="table"><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr class="thead"><td class="align_left">Feature</td><td class="align_center">Detail</td></tr><tr><td class="thead-hr" colspan="2"><hr/></td></tr><tr><td class="align_left">Bearing type</td><td class="align_center">SKF22207CA/W33</td></tr><tr><td class="align_left">Roller diameter d (mm)</td><td class="align_center">8.2</td></tr><tr><td class="align_left">Pitch diameter D (mm)</td><td class="align_center">55</td></tr><tr><td class="align_left">Number of balls (N)</td><td class="align_center">30</td></tr><tr><td class="align_left">Contact angle <svg height="13.0648pt" id="M80" style="vertical-align:-2.268101pt" version="1.1" viewbox="-0.0498162 -10.7967 30.8474 13.0648" width="30.8474pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g transform="matrix(.013,0,0,-0.013,2.175,0)"><path d="M300 -147C201 -63 143 98 143 270S200 602 300 686L282 710C136 610 70 450 70 271V270C70 89 136 -72 282 -170L300 -147Z"></path></g><g transform="matrix(.013,0,0,-0.013,6.673,0)"><path d="M475 507C475 612 440 712 326 712C139 712 23 420 23 215C23 96 58 -12 180 -12C369 -12 475 293 475 507ZM391 522C391 486 387 448 379 394H126C155 538 222 677 310 677C386 677 391 571 391 522ZM373 346C344 193 283 22 189 22C126 22 106 114 106 196C106 243 111 293 118 346H373Z"></path></g><g transform="matrix(.013,0,0,-0.013,13.148,0)"><path d="M300 -147C201 -63 143 98 143 270S200 602 300 686L282 710C136 610 70 450 70 271V270C70 89 136 -72 282 -170L300 -147Z"></path></g><g transform="matrix(.013,0,0,-0.013,17.646,0)"><path d="M300 -147C201 -63 143 98 143 270S200 602 300 686L282 710C136 610 70 450 70 271V270C70 89 136 -72 282 -170L300 -147Z"></path></g><g transform="matrix(.0091,0,0,-0.0091,22.144,-5.741)"><path d="M339 262C339 340 273 403 193 403S48 340 48 262S113 121 193 121S339 184 339 262ZM283 262C283 210 242 168 193 168S104 210 104 262S144 356 193 356S283 314 283 262Z"></path></g><g transform="matrix(.013,0,0,-0.013,26.159,0)"><path d="M275 270C275 450 212 609 64 710L45 686C145 604 203 442 203 270S147 -63 45 -147L64 -170C213 -68 275 89 275 270Z"></path></g></svg></td><td class="align_center">0</td></tr><tr class="table-tr"><td colspan="2"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>The specifications of the test bearing.</div>

Shock and Vibration

tab6

Table 6

Table 6: Fault Diagnosis of Spindle Device in Hoist Using Variational Mode Decomposition and Statistical Features 