Abstract
AbstractIn this paper, the low-pressure rotor of the typical high bypass ratio turbofan engine is taken as the model, and the dynamic model of the two disk rotor with casing is taken as the basis. Through the finite element numerical simulation, the influence of the vector angle between the unbalanced eccentricity of the fan disk and the turbine disk on the dynamic characteristics of the rotor system wind-impact of the rotor system is emphatically analyzed. The numerical simulation results show that with the increase of the vector angle between unbalanced eccentricity, the rotor system first moves from P-1 periodic motion to P-2 periodic motion, and then enters into the quasi-periodic motion and finally enters into the chaotic motion state.KeywordsTwo disk rotor system7Amount of unbalanceEccentric angleRubbing
Published Version
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