Analysis of Vibration Characteristics of a Cracked Rotor

Abstract:

This paper studies the Jeffcott cracked rotor based on level set, considering the oil film oscillation effects on crack rotor, building the stiffness matrix of the cracked rotor in the fixed coordinate system and the moving coordinate, deriving the nonlinear differential equations of coupled vibration of a cracked rotor, and analysis of its dynamic characteristic combined with case. Analysis shows that: crack rotor can produce nonlinear vibration in the crack and Oil film oscillation can be coupled bending and torsional vibration of cracked rotor. The analysis results provides practical basis for diagnosing Resonance of the rotor system fault and the safe operation of rotor.

• Periodical: Applied Mechanics and Materials (Volume 620)
• Pages: 296-299
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.620.296
• Online since: August 2014
• Authors: Xin Xing Chu*, Feng Lan Wang
• Keywords: Coupled Vibration, Cracked Rotor, Example Analysis, Oil Whip

References

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