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- W2272365830 abstract "To realize the quantitative damage detection of a rotor, firstly an impedance analytic model is built. Then the change of bending stiffness is introduced as the damage index. Given the circular boundary condition of a rotor, annular elements are used as the analyzed objects and spectral element method is used. The electro-mechanical (E/M) coupled impedance expression of an undamaged rotor is derived with the application of a low-cost impedance test circuit. A Taylor expansion method is used to obtain the approximate E/M coupled impedance expression for the damaged rotor. After obtaining the difference between the undamaged and damaged rotor impedance, a rotor damage detection algorithm is proposed. In this paper, a preset damage configuration is used for the numerical simulation and experiment validation. The detection results have shown that the quantitative damage detection algorithm based on spectral element method and piezoelectric impedance proposed in this paper can identify the location and the severity of the damaged rotor accurately." @default.
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- W2272365830 date "2015-11-12" @default.
- W2272365830 modified "2023-09-24" @default.
- W2272365830 title "Quantitative rotor damage detection based on piezoelectric impedance" @default.
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- W2272365830 doi "https://doi.org/10.1088/0957-0233/26/12/125012" @default.
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