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- W2067963562 abstract "Jeffcott rotor is employed to study the nonlinear vibration characteristics of breathing cracked rotor system and explore the possibility of further damage identification. This paper is an extension work of prior study based on 4 degree-of-freedom Jeffcott rotor system. With consideration of disk tilting and gyroscopic effect, 6-dof EOM is derived and the crack model is established using SERR (strain energy release rate) in facture mechanics. Same as the prior work, the damaged stiffness matrix is updated by computing the instant crack closure line through Zero Stress Intensity Factor method. The breathing crack area is taken as a variable to analyze the breathing behavior in terms of eccentricity phase and shaft speed. Furthermore, the coupled vibration among lateral, torsional and longitudinal d.o.f is studied under torsional/axial excitation. The final part demonstrates the possibility of using vibration signal of damaged system for the crack diagnosis and health monitoring." @default.
- W2067963562 created "2016-06-24" @default.
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- W2067963562 date "2015-04-01" @default.
- W2067963562 modified "2023-09-23" @default.
- W2067963562 title "Nonlinear dynamics and health monitoring of 6-DOF breathing cracked Jeffcott rotor" @default.
- W2067963562 cites W2044947297 @default.
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- W2067963562 doi "https://doi.org/10.1117/12.2084362" @default.
- W2067963562 hasPublicationYear "2015" @default.
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