Research on Torsional Property of Body-In-White Based on Square Box Model and Multiobjective Genetic Algorithm

<table class="table-group" id="tab5"><tr><td><table class="table"><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr class="thead"><td class="align_left">Method</td><td class="align_center">Torsional stiffness (N·m/(°))</td><td class="align_center">First-order torsional frequency (Hz)</td></tr><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td class="align_left">FEM</td><td class="align_center">6733.394</td><td class="align_center">24.752</td></tr><tr><td class="align_left">Proposed method</td><td class="align_center">7139.785</td><td class="align_center">24.987</td></tr><tr><td class="align_left">Relative error (%)</td><td class="align_center">6.04</td><td class="align_center">0.95</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>The comparison between the proposed method and FEM after the optimizations.</div>

Mathematical Problems in Engineering

tab5

Table 5

Table 5: Research on Torsional Property of Body-In-White Based on Square Box Model and Multiobjective Genetic Algorithm 