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

Non-linearities in the vibrations of elastic structures with a closing crack: A state of the art review

“…Thus, Darpe [109,110] used WT to reveal the transient features of the resonant bending vibrations connected with a closing crack. Guo et al [115] developed the methodology for breathing crack detection by using the superharmonic components obtained by empirical mode decomposition method combined with WT spectrum at steady states around the 1/3 and 1/2 of the critical speed. Prabhakar et al [116], Sekhar [117] and Zuo et al [118] used the continuous WT to extract characteristic features from vibration response of a cracked rotor system: the subcritical response peaks are clearly evident from the continuous WT plots, as well as from the vibration spectrum.…”

Fault Diagnosis for Supporting Rollers of the Rotary Kiln Using the Dynamic Model and Empirical Mode Decomposition

“…As it is difficult to achieve analytical solution of the complex dynamics equation, the numerical methods was used to solve the problem. And the fourth-order Runge-Kutta method [10] is selected to solve the Eq. (10) to obtain the dynamics response of the supporting rollers.…”

Feature Extraction Enhancement Based on Parameterless Empirical Wavelet Transform: Application to Bearing Fault Diagnosis

“…Moreover, it is considered very expensive in terms of computation time and resources. Despite these drawbacks, EMD and EEMD have been successfully applied for fault diagnosis of various rotating machinery faults [1,6,[25][26][27][28][29][30][31][32][33][34].…”