Abstrait

Fabrication and Analysis of Nano Composite Cylindrical Helical Spring

Suresh.G, Vignesh.R, Aravinth.B, Padmanabhan.K, A.Thiagararajan

The composite materials have more elastic strain energy storage capacity and high strength to weight ratio as compared with those of steel, so conventional helical coil springs are being replaced by composite cylindrical helical coil springs. This project describes design and experimental analysis of composite helical spring made of fiber reinforced polymer of Woven Roving Fiber (WRF), and Thermo set polymer (Epoxy Resin) with Nano clay (Garamite). The addition of nanoclay provides unique mechanical and tribological properties combined with low specific weight and a high resistance to degradation in order to ensure safety and economic efficiency. A comprehensive study was carried out a series of Nano composites containing varying amount of nano particles (Nano clay). The objective is to compare the load carrying capacity, stiffness and weight savings of composite helical spring with that of steel helical spring. The design constraints are stresses and deflections. The dimensions of an existing conventional steel helical spring of a light commercial vehicle are taken. Same dimensions of conventional helical spring are used to fabricate a composite spring.