A Multi-Crack Identification Algorithm Based on Forced Vibrations from a Shaft System

  • S. K. Singh
  • R. TiwariEmail author
  • S. Talukdar
Conference paper
Part of the IUTAM Bookseries book series (IUTAMBOOK, volume 1011)


A multi-crack identification algorithm has been developed based on the forced response from a shaft. Transverse vibrations of a cracked shaft in the two orthogonal planes are analyzed. The presence of cracks in a shaft introduces a local slope discontinuity in the elastic line of the shaft. This slope discontinuity is estimated by approximating the forced response of shaft at consecutive measurement axial locations by a polynomial. The algorithm is tested for numerically simulated responses from the FE modeling of a simply supported shaft having two cracks.


Crack identification Multi-cracked shaft Forced response 


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Copyright information

© Springer Science+Business Media B.V. 2011

Authors and Affiliations

  1. 1.Department of Mechanical EngineeringIndian Institute of TechnologyGuwahatiIndia
  2. 2.Department of Civil EngineeringIndian Institute of TechnologyGuwahatiIndia

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