Fatigue Simulation Analysis of an Automotive Stabilizer Bar Linkage

<div class="section abstract"><div class="htmlview paragraph">As a part of an automobile suspension structure, fatigue durability performance of the automotive stabilizer bar linkage is crucial to the safety and reliability of the suspension system. In this study, the modeling and simulation analysis methods of the stabilizer bar linkage were described in detail, especially for the welded positions between the connecting rod and the spherical shells (or sleeves).</div><div class="htmlview paragraph">Based on the equivalent structural stress method and the theory of critical distances, damage values of welded positions in the stabilizer bar linkage were solved. For the spherical shell end, the simulation reproduced the bench test; and for the sleeve end, the analysis approach was determined by comparing in several different modeling ways. Mooney-Rivlin model was adopted to fit the constitutive relationship of rubber material in the bushing.</div><div class="htmlview paragraph">The above methods were applied to predict the fatigue durability performance of the stabilizer bar linkage product, and the effectiveness was proved.</div></div>