Durability Analysis of the Pulley in the Power Steering System Considering the Variation of the Fatigue Strength

摘要

In order to secure the safety of the power steering system, it is necessary to perform a strength and a fatigue analysis of the pulley. The applied stress distribution of the pulley under combined loads was obtained by finite element analysis. Based on these results, the fatigue life of the pulley with the variation of the fatigue strength was evaluated by a durability analysis simulator. The robust geometric shape to improve the safety of the pulley was investigated by a few parametric studies. Moreover, the predicted fatigue life using the durability simulator was verified by the durability test.