61 www.ijergs.org Multiple Cracks Effects on Vibration Characteristics of Shaft Beam

Abstract—Whenever a mechanical component is subjected to fluctuating stresses the crack is oriented in the component due to fatigue failure. The cracked component is failed due to most dangerous and frequent catastrophic failure without any prior indication. In this paper vibration analysis of cantilever shaft beam is done using Experimental Modal Analysis and Finite Element Analysis. First three Natural Frequencies of transverse vibration are determined and also the mode shapes of these modes of vibrations are extracted and plotted using ANSYS 14.5. The results obtained using Finite Element Analysis are compared with the Experimental Modal Analysis. The study shows good agreement between the results obtained using Finite Element Analysis and Experimental Analysis