COMPARISON OF WEIGHTS OF STEEL AND COMPOSITE COIL SPRING FOR TWO WHEELER SUSPENSION SYSTEMS

Abstract

 Thepresent article givesinformation on design of steel and composite coil spring for two-wheelerapplication. The reason to develop the composite coil spring is to minimize the weight of coil spring. In this article, study has been done on a two-wheeler vehicle. Dimensions of the exiting steel coil spring are measured. The load on the spring has been calculated mathematically. Deflection, shear stress, weight and stiffness are calculated using dimensions of existing steel coil springare measured. The load on the spring has been calculated mathematically. Deflection, shear stress, weight and stiffness are calculated using dimensions of existing steel coil spring.The design of composite coil spring has been done as same stiffness as that of steel spring byusingtrial and error method. The metal coil spring weight was 0.782 kg and the newly developed composite coil spring has 0.244 kg. So, weight of the existing coil spring has been reduced by 70% using composite coil spring.