Open AccessNonlinear vibration characteristics of gear-rotor-bearing system
Author(s) -
Fei Huang,
Xinqiang Wang,
Fang Hao,
Lixuan Sima,
Yue Cui
Publication year - 2022
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/2229/1/012002
Subject(s) - bearing (navigation) , reducer , vibration , backlash , stiffness , structural engineering , rotor (electric) , finite element method , nonlinear system , timoshenko beam theory , helicopter rotor , engineering , control theory (sociology) , mechanical engineering , computer science , physics , acoustics , quantum mechanics , artificial intelligence , control (management)
Based on the Timoshenko beam element model in the finite element theory and the lumped mass method, the meshing dynamics equation of helical gears was established considering the time-varying meshing stiffness of helical gears, tooth side clearance, bearing support stiffness and other factors, and the nonlinear dynamics model of the gear-rotor-bearing system was established. Through the analysis of the dynamics model, meshing stiffness, backlash and the influence of bearing stiffness for the system vibration characteristics, studies have shown that the bearing stiffness for the purpose of this article studies the effect to the stability of the main reducer system transmission, vibration noise of the gear-rotor-bearing system parameter selection, and provides theory basis for diagnosis.