Vibration Analysis of Multiple Cracked Shaft
Journal Title: International Journal of Modern Engineering Research (IJMER) - Year 2014, Vol 4, Issue 6
Abstract
Crack in component if undetected may lead to catastrophic failure of the component. The cracked rotor problem received the first attention in 1970 and after that the interest among the researchers started. The vibration behavior of cracked structures, in particular cracked rotors, is important to study as the introduction of the crack alters the vibration characteristics of the structure. The problem of damage and crack detection in structural components has acquired important role in past few years. However, cracked rotor studies are mainly deals with single crack. For multiple cracked structures the problem of crack sizing and location becomes more complex. Only few authors have pointed out the multiple crack assessment in the rotor. The proposed work is on vibration analysis of multiple cracked shaft beam. An Euler Bernoulli beam fixed at one end with two transverse cracks is considered. The vibration characteristics of the shaft are studied using Experimental Modal Analysis and Finite Element Analysis. The mode shapes and natural frequencies of the beams are studied and their variation with change in position and depth of the crack is also studied. The study shows good agreement of the results obtained using Finite Element Analysis and Experimental Modal Analysis.
Authors and Affiliations
Dinesh R. Satpute , Milind S. Mhaske
Keywords
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