Experimental and numerical analysis of cracked shaft in viscous medium at finite region

Abstract

The present investigation is an attempt to evaluate the dynamic behaviors of cantilever cracked shaft with attached mass at the end of the shaft in viscous medium at finite region. In this work we focused on the theoretical expression which is developed for finding the fundamental natural frequency and amplitude of the shaft with attached mass using influence co-efficient method. External fluid forces are analyzed by the Navier Stoke’s equation. Viscosity of fluid and relative crack depth is taken as main variable parameters. In this investigation, the presence of transverse crack in the shaft has been considered. After that the suitable theoretical expressions are considered, and coding is done using Matlab. Further experimental verification have also done to prove the validity of the theory which is developed so far.