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Detection of rubbing location in rotor system by super-harmonic responses

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Abstract

A detection strategy for the rubbing locations in a rotor system based on the super-harmonic responses is developed. Firstly, the dynamics of the rotor system with rubbing fault is investigated based on the theory of nonlinear output frequency response function. Then, the relationship between the super-harmonic components of the vibrations of fault rotor system and the receptance matrix of the fault-free rotor system is established. The detection method is then set up for rubbing location along the rotor. With this approach, the rubbing location can be determined by using super-harmonic responses measured at only two nodes under one case of operating speed. Finally, numerical simulations and experimental observations are carried out to verify the efficiency of the proposed detection method for rubbing location in a rotor system.

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Authors and Affiliations

  1. School of Mechanical Engineering and Automation, Northeastern University, Shenyang, 110819, China

    Hongliang Yao, Qingkai Han, Lingxuan Li & Bangchun Wen

Authors
  1. Hongliang Yao
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  2. Qingkai Han
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  3. Lingxuan Li
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  4. Bangchun Wen
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Corresponding author

Correspondence to Hongliang Yao.

Additional information

Recommended by Associate Editor Ohseop Song

Hongliang Yao is currently an associate professor at Northeastern University, China. He received his Bachelor’s degree in 2000 from Hebei Institute of Technology, China, and received his Master’s and PhD degrees in 2003 and 2006, respectively, from Northeastern University, China. His research interests include rotor dynamics and rotating machinery fault diagnosis.

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Yao, H., Han, Q., Li, L. et al. Detection of rubbing location in rotor system by super-harmonic responses. J Mech Sci Technol 26, 2431–2437 (2012). https://doi.org/10.1007/s12206-012-0417-4

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  • DOI: https://doi.org/10.1007/s12206-012-0417-4

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