The detection and monitoring of slant crack in the rotor system using mechanical impedance was discussed. The effect of a slant crack parameters on normalized impedance was found to be the same as transverse cracks. The changes in rotor impedance due to cracks were found to be significant, as compared to that of natural frequencies of the rotor-bearing system. It was suggested that the measurements of mechanical impedance can also be used for slant crack detection and monitoring.

A. Seshadri Sekhar

Department of Mechanical Engineering

A.R. Mohanty

S. Prabhakar

Indian Institute of Technology Palakkad&nbsp;(IIT Palakkad or IIT PKD) is a public autonomous&nbsp;engineering&nbsp;and&nbsp;research&nbsp;institute located in&nbsp;Palakkad,&nbsp;Kerala. It was&nbsp;one of the five new&nbsp;IITs&nbsp;proposed in the&nbsp;2014 Union budget of India. The campus was inaugurated on 3 August 2015. The institute has 94 faculty, 978 students, and 63 non-teaching staffs.

IT Palakkad currently offers four-year Bachelor of Technology (B.Tech) and two years MS programmes in 8 different engineering disciplines including&nbsp;Computer Science, Electrical, Mechanical, Civil among others.

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Journal	Journal of Sound and Vibration
Publisher	Academic Press
ISSN	0022460X