Finite Element Analysis and Modal Analysis of Shaft Composite Materials

Abstract

Composite materials are normally used in structures thatclaim a high level of mechanical recital. Their highstrength to weight and stiffness to weight ratios has facilitatedthe development of lighter structures, which often replaceconventional metal structures. Passivedamping is used to suppress vibrations by reducingpeak resonant response. Viscoelastic dampingmaterials add passive damping to structures bydissipating vibration strain energy in the form of heatenergy. The incorporation of damping materials inadvanced composite materials offers the possibility ofhighly damped, light-weight structural componentsthat are vibration-resistant. The aim of the project isto analyze the shaft without damping material andwith damping material. The present used material forshaft is steel. In this thesis, the composite materialsconsidered are HM Carbon Epoxy and HS CarbonEpoxy. The material for damping is rubber. Thestructural analysis is done to verify the strength ofthe shaft and compare the results for three materials.Modal analysis is done on the shaft to determinemode shapes.