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中文摘要：
针对航空发动机整机振动分析,建立了含不平衡-不对中-碰摩耦合故障的转子-滚动轴承-机匣耦合动力学模型.在耦合模型中,考虑了机匣运动,同时,充分考虑了滚动轴承间隙、非线性赫兹接触以及变柔性VC(varying compliance)等非线性因素;在耦合故障中,建立了不平衡、不对中和碰摩故障模型.运用数值积分方法获取了系统响应,研究耦合故障特征和规律.仿真计算分析表明了该模型的正确有效性.
英文摘要：
A new rotor-ball bearing-stator coupling system,including imbalance-misalignment-rubbing coupling fault,was established for aero-engine vibration.In the coupling system,the stator motion was considered,and the nonlinear factors of ball bearing such as the clearance,nonlinear Hertzian contact,and the varying compliance(VC),were fully taken into account;in the process of fault coupling,the imbalance,the misalignment and the rubbing faults were modeled respectively.The numerical integral method was used to obt...
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