A Load Identification Application Technology Based on Regularization Method and Finite Element Modified Model

<table class="table-group" id="tab4"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td class="align_left">Modal order</td><td class="align_center">Experimental mode (Hz)</td><td class="align_center">Finite element modal (Hz)</td><td class="align_center">Relative error (%)</td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td class="align_left">1</td><td class="align_center">4.91</td><td class="align_center">5.17</td><td class="align_center">4.55</td></tr><tr><td class="align_left">2</td><td class="align_center">30.64</td><td class="align_center">30.79</td><td class="align_center">−0.49</td></tr><tr><td class="align_left">3</td><td class="align_center">85.32</td><td class="align_center">76.03</td><td class="align_center">7.03</td></tr><tr><td class="align_left">4</td><td class="align_center">167.90</td><td class="align_center">132.89</td><td class="align_center">14.28</td></tr><tr><td class="align_left">5</td><td class="align_center">277.21</td><td class="align_center">226.95</td><td class="align_center">15.49</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Natural frequency comparison of beam structures and experimental structures.</div>

Shock and Vibration

tab4

Table 4

Table 4: A Load Identification Application Technology Based on Regularization Method and Finite Element Modified Model 