Experimental Study on the Nonlinear Vibrations and n× Amplitudes of a Rotor With a Transverse Crack | Zendy

Jean-Jacques Sinou | Zendy

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Experimental Study on the Nonlinear Vibrations and n× Amplitudes of a Rotor With a Transverse Crack

Author(s) -

Jean-Jacques Sinou

Publication year - 2009

Publication title -

journal of vibration and acoustics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.605

H-Index - 82

eISSN - 1528-8927

pISSN - 1048-9002

DOI - 10.1115/1.3086928

Subject(s) - subharmonic function , transverse plane , nonlinear system , rotor (electric) , vibration , helicopter rotor , amplitude , structural engineering , mechanics , materials science , acoustics , physics , engineering , mathematical analysis , optics , mathematics , mechanical engineering , quantum mechanics

International audienceIn this paper, the nonlinear response of a rotor system containing a transverse crack is analyzed experimentally in order to propose a nondestructive detection of cracks in the rotor. More particularly, the evolutions of the n× superharmonic frequency components at the various subcritical resonant peaks and the decrease in the subcritical resonant speeds are investigated for various crack depths. The experimental results that are presented in this study confirm the theoretical analysis of many researchers and provide a possible basis for an on-line monitoring system

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