Bearing loads of dual rotor-bearing system under stationary and transient conditions  

作　　者：刘树辉 王国丽 朱清乐 周年发 陈勇 

机构地区：[1]School of Mechanical Engineering,Beijing Institute of Technology [2]Avic Shenyang Liming Aero-Engine (Group) Corporation Ltd

出　　处：《Journal of Beijing Institute of Technology》2012年第4期460-465,共6页北京理工大学学报（英文版）

基　　金：Supported by the National Natural Science Foundation of China (50875022)

摘　　要：Aimed at aeroengine vibration failure, bearing loads of dual rotor-bearing system caused by unbalance are calculated under stationary and transient conditions. The three-dimensional （3-D） finite element method （FEM） model of dual rotor-bearing system was established. Applying the ro- tor dynamics function of Ansys 12.0, bearing loads were calculated under various unbalance force in stationary condition, and the transient vibration characteristics and the effect of acceleration on bearing loads were discussed. On the basis of simulation results, the influence disciplines of unbal- ance on bearing loads and theoretic reference for reducing bearing loads during start-up were ob- tained.Aimed at aeroengine vibration failure, bearing loads of dual rotor-bearing system caused by unbalance are calculated under stationary and transient conditions. The three-dimensional （3-D） finite element method （FEM） model of dual rotor-bearing system was established. Applying the ro- tor dynamics function of Ansys 12.0, bearing loads were calculated under various unbalance force in stationary condition, and the transient vibration characteristics and the effect of acceleration on bearing loads were discussed. On the basis of simulation results, the influence disciplines of unbal- ance on bearing loads and theoretic reference for reducing bearing loads during start-up were ob- tained.

关 键 词：dual rotor-bearing system bearing loads rotor dynamics AEROENGINE 

分 类 号：TH774[机械工程—仪器科学与技术]