Analysis Of Semi Elliptical Multi Leaf Spring Using Ansys

A multi-leaf spring is one of the most important components of automobile suspension system. Leaves are basically a series of flat plates, usually of semi-elliptical shape. Generally, a multi leaf spring used in automobile suspension, consists of two types of leaves i.e. graduated- length leaves and full-length leaves. The present work is an attempt to estimate the magnitude of bending stresses in the above-mentioned leaves for a semi-elliptic multi- leaf spring made of structure steel and titanium alloy. A lot of research work has been carried out in the context of leaf spring considering its material and a significant progress has been observed in the field of weight reduction, improvement of load carrying capacity. This project includes the study of deflection and stress distribution of leaf spring for heavy duty vehicles, considering two materials. The results highlight the best suitable material for better dynamic behavior of leaf spring and its design optimization. Finally referring to the results obtained in these research studies, the present work proposes a new idea regarding the construction of multi-leaf spring based on practical applications and cost analysis. Keywords: Leaf spring, Torsion, Static analysis. Semi elliptical, Fatigue failure