Research on Dynamic Characteristics of the Two-stage Planetary Gear Transmission System of TBM Reducers
Xu Younan
Li Mingqin
Liu Shanjuan
Liu Zhiqiang
Abstract：Tunnel boring machine(TBM)reducers are important components of TBM's cutter-head drive system.In order to reveal the dynamic characteristics of the two-stage planetary gear transmission system of the TBM reducer,the influence factors such as tooth surface friction,the time-varying meshing stiffness,the back-lash and meshing error of the two-stage planetary gear transmission system of the TBM reducer are considered.The torsional dynamics model of the two-stage planetary gear transmission system of the TBM reducer is estab-lished by the lumped parameter method,and its dynamic characteristics are solved and analyzed.The inherent characteristic analysis results show three vibration modes of the planetary gear train:rigid body vibration mode,torsional vibration mode and the planetary gear vibration mode;the vibration displacement of each gear and the dynamic meshing force between the gear pairs are obtained from the dynamic response analysis.The result lays the foundation for the dynamic optimization design of planetary gear trains.
Keywords：TBMTwo-stage planetary gear trainDynamicsDynamic responseInherent character-istic
Publication Date：2024-03-15
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：7( 118-124 )