The presence of a crack in a structural member introduces a local flexibility that affects its
vibration response. Moreover, the crack will open and close in time depending on the …

The strain energy release rate (SERR) theory, combined with Linear Fracture Mechanics
and Rotordynamics theories, has been widely used over the last three decades in order to …

In this paper, the natural frequencies and mode shapes of a cracked beam are obtained
using the finite element method. An 'overall additional flexibility matrix', instead of the 'local …

A theoretical and experimental dynamic behavior of different multi-beams systems
containing a transverse crack is presented. The additional flexibility that the crack generates …

The influence of the presence of transverse cracks in a rotating shaft is analyzed. The paper
addresses the influence of crack opening and closing on dynamic response during …

The dynamic behaviour of structures, in particular, that of a rotor, containing cracks is a
subject of considerable current interest. Several researchers have developed models of …

Finite element (FE) formulations have been developed for dynamic analysis of a functionally
graded (FG) shaft having a transverse crack. Two nodded Timoshenko beam element with …

The vibration monitoring of the rotating machines is an effective tool to detect rotating
element's defects at their early stages. The dynamic characteristics such as natural …

Maintenance is essential to prevent catastrophic failures in rotating machinery. A crack can
cause a failure with costly processes of reparation, especially in a rotating shaft. In this study …

Wavelet transform (WT) has been used in the diagnosis of cracked rotors since the 1990s. At
present, WT is one of the most commonly used tools to treat signals in several fields …