FATIGUE LIFE ENHANCEMENT IN CONVENTIONAL MULTI-LEAF SPRINGS USING NEW DESIGN TECHNIQUE AND COMPARISON BETWEEN VKP AND CONVENTIONAL MULTI-LEAF SPRING

Abstract

A new design technique for designing multi-leaf springs is the subject of this research paper. Automobile industries always search for alternatives to reduce the mass of the vehicle, to increase its performance. A new approach is used for reducing the mass of a conventional multi-leaf spring, and also enhancing its fatigue life. The new spring made by using this approach is called ‘VKP spring’. Stress, strain, and total deformation are the designing constraints. 55Si2Mn90 steel and E-Glass/epoxy are used to compare the results of fatigue life of multi-leaf springs, at a range of loads. Modeling is done using FUSION 360 and ANSYS 15 is used to perform static structural analysis. ----------------------------------------------------------------------***--------------------------------------------------------------------1.