Detection of cracks in rotor based on the 2 × and 3 × super-harmonic frequency components and the crack-unbalance interactions

  title={Detection of cracks in rotor based on the 2 × and 3 × super-harmonic frequency components and the crack-unbalance interactions},
  author={Jean-Jacques Sinou},
The purpose of this paper is to investigate the use of the 2× and3× super-harmonic components for detecting the presence of a single transverse breathing cra ck in non-linear rotor system. This procedure is based on the detection of the super-harmonic components o f the non-linear dynamical behaviour at the associated sub-critical resonant peaks. The non-linear behaviour of the rotor system with a breathin g crack is briefly analysed numerically: it will be illustrated that the effects of the… CONTINUE READING


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