In this paper, the influence of technological parameters of the leaf spring shot peening process on the stress states in its surface layer was analyzed. Numerical analyses of the fatigue process of leaf spring-type parts were conducted. An application was developed in the Ansys/LS-Dyna system using the APDL language, which accounts for the shot peening of the leaf spring. Numerical calculations were performed using the Finite Element Method. The obtained results can serve as an aid, and the developed application as a supporting tool for the correct and informed development of the technological process for manufacturing leaf springs.Leaf springs have been almost completely replaced as elastic elements used in passenger cars, but they are primarily used in delivery vans and trucks [1]. Leaf springs constitute a universal elastic element used in vehicle suspensions, as they can transfer not only vertical forces generated while driving over road irregularities but also longitudinal forces, lateral forces, and torsional moments [8]. To counteract certain adverse phenomena resulting from the long-term operation of multi-leaf springs, the parabolic spring was created. A parabolic spring has leaves with variable thickness along its entire length. The thickest leaves are in the central part, and they become thinner towards the ends. (…)
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Source: Logistyka Magazine