On modeling and damage detection methodologies in rotor systems

R Abdul Nasar, T Alzarooni, MA AL-Shudeifat - Nonlinear Dynamics, 2024 - Springer
Damages in rotor systems have severe impact on their functionality, safety, running
durability and their industrial productivity, which usually leads to unavoidable economical …

The influence of cracks in rotating shafts

JJ Sinou, AW Lees - Journal of sound and vibration, 2005 - Elsevier
In this paper, the influence of transverse cracks in a rotating shaft is analysed. The paper
addresses the two distinct issues of the changes in modal properties and the influence of …

Adaptive spectral kurtosis filtering based on Morlet wavelet and its application for signal transients detection

H Liu, W Huang, S Wang, Z Zhu - Signal Processing, 2014 - Elsevier
Spectral kurtosis (SK) provides a valuable tool for detecting the signal transients buried in
noise, which makes it very powerful for designing a filter to extract the signal transients …

Multiple cracks effects and identification

AS Sekhar - Mechanical Systems and Signal Processing, 2008 - Elsevier
An important rotor fault, which can lead to catastrophic failure if undetected, is fatigue crack
in the shaft. The cracked rotor problem received the first attention in 1970, since when the …

Identification of multiple cracks in beams under bending

AC Chasalevris, CA Papadopoulos - Mechanical systems and signal …, 2006 - Elsevier
The identification of a transverse crack on a beam is the subject of many investigators.
Identifying the crack means to find its position and depth. In many cases there are more than …

Hilbert–Huang transform for detection and monitoring of crack in a transient rotor

TR Babu, S Srikanth, AS Sekhar - Mechanical Systems and Signal …, 2008 - Elsevier
The dynamics and diagnostics of a cracked rotor have been gaining importance in the
recent years. Vibration monitoring during start-up or shut-down is as important as during …

Application of empirical mode decomposition to a Jeffcott rotor with a breathing crack

C Guo, MA Al-Shudeifat, J Yan, LA Bergman… - Journal of Sound and …, 2013 - Elsevier
Fatigue damage, appearing due to developing cracks, is considered to be one of the main
faults in rotating machinery. The damage in rotating components can be catastrophic, posing …

Vibration behavior of a two-crack shaft in a rotor disc-bearing system

H Khorrami, S Rakheja, R Sedaghati - Mechanism and Machine Theory, 2017 - Elsevier
The vibration response characteristics of a rotor disc-bearing system with one and two
cracks are analytically investigated using a modified harmonic balance method. The …

A comparative study on time–frequency feature of cracked rotor by Wigner–Ville distribution and wavelet transform

J Zou, J Chen - Journal of Sound and Vibration, 2004 - Elsevier
Based on the simple hinge crack model, the dynamic equation of transient response in a
cracked rotor system is modelled; the numerical simulation solutions of the cracked rotor and …

Vibration analysis of a misaligned rotor—coupling—bearing system passing through the critical speed

S Prabhakar, AS Sekhar… - Proceedings of the …, 2001 - journals.sagepub.com
The transient response of a misaligned rotor—coupling—bearing system passing through
the critical speed has been analysed by using the finite element method (FEM) for flexural …