EFFECT OF STACKING SEQUENCE ON THE PERFORMANCE OF GAS TURBINE CASING USING MODAL ANALYSIS

Gas turbine is a critical component used in many applications such as automotive, air-craft and spacecraft. Performance of a gas turbine depends on the weight of the casing and its vibration characteristics. Composites are promising materials now days which are finding applications in every field of engineering. In this work, an effort has been made to design gas turbine casing with composite materials so as to explore the advantages of them. Modal analysis is carried out for gas turbine casing made with conventional materials and composite materials with different stacking sequences. The results have shown that the casing made with composite material out performs the conventional casing when proper stacking sequence is selected.