STRUCTURAL ANALYSIS OF COMPOSITE MATERIAL HELICAL GEAR UNDER DIFFERENT LOADING CONDITION

Gearing is one of the most critical components in a mechanical power transmission system, and in most industrial rotating machinery. In recent years it is required to operate machines at varying load and speed. Gear teeth normally fail when load is increased above certain limit. Therefore it is required to explore alternate materials for gear manufacturing. Composite materials provide adequate strength with weight reduction and they have emerged as a bette r alternative for replacing metallic gears. In this work an attempt has been made to replace the metallic gears of steel alloy with the composites . The composites consider were the Aluminium Silicon carbide composite Carbon fiber epoxy composites and c arbon fiber silicon carbide ceramic composite . Efforts have also been carried out for modelling of the transmittiing power gear assembly on creo 3.0 and fem based structural behaviour of different material were studied. Ansys 14.0 is used the analysis too l in the present work to detrmine the total deformation , von misses stress and the natural frequencies at various mode. Composite gears offer improved properties over steel alloys and these can be used as better alternative for replacing metallic gears .