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中文摘要：
针对实际的航空发动机转子系统，建立了含碰摩故障的转子-滚动轴承-支承-机匣耦合动力学模型．在模型中，考虑了机匣运动，弹性支承、挤压油膜阻尼，充分考虑了轴承间隙、滚珠与滚道的非线性赫兹接触力以及由滚动轴承支撑刚度变化而产生的变柔性（Varying compliance VC）振动．运用数值积分方法获取了系统响应，并建立带机匣的航空发动机转子实验器进行碰摩故障实验，仿真结果与实验结果比较分析表明了模型的有效性．
英文摘要：
A new rotor-ball bearing-support-stator coupling system dynamic model including rubbing fault was established for rotor-bearing system of practical aeroengine. In the model, the stator motion, the flexible support, squeeze film damper （SFD） were considered, and the nonlinear factors of ball bearing such as the clearance of bearing, nonlinear Hertzian contract force between balls and races, and the varying compliance vibration because of periodical variety of contact position between balls and races were modeled. The numerical integral method was employed to obtain system＇s responses, and an aeroengine tester with stator was established to carry out rubbing fault experiment. Finally, the simulation results from rotor-ball bearing-support-stator coupling model were compared with the experiment results in order to indicate the validity of the new model.
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