Application of FEM Analysis to Fault Diagnosis of Cracked Rotor

Kang Yang; Yi Yang

doi:10.4028/www.scientific.net/AMM.37-38.181

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Application and Analysis of RBF Neural Network for Burr Prediction in Micro-Machining
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Application of Analog Compound Orthogonal Neural Network to Temperature Control of Electric Heating Dryers
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Application of FEM Analysis to Fault Diagnosis of Cracked Rotor
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Application of Maslow's Hierarchy of Needs to Modern Chinese Furniture
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Application of the Structural Topological Optimization in the Column Stability Design
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Application Research on Collaborative Design of Engineering Machinery Design
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 37-38Application of FEM Analysis to Fault Diagnosis of...

Application of FEM Analysis to Fault Diagnosis of Cracked Rotor

Abstract:

Based on the simple crack model and the finite element method (FEM) theorem, the corresponding dynamic equation of the cracked rotor based on FEM analysis is modeled and the numerical simulation solutions are obtained. By analyzing the dynamic characteristics of cracked rotor in diverse conditions, the properties of the un-cracked rotor and cracked rotor are discussed. A valid fault diagnosis method of cracked rotor is purposed. The method demonstrates that the cracked rotor can be identified by estimating if the swing of disk center obviously accretion and appear wave crest when rotate speed is a half critical speed of rotor shaft system.