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轴承载荷不足引起的机组振动故障分析
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    摘要:

    介绍流体动压径向滑动轴承的工作原理及油膜不同于一般机械元件的工作特点,分析载荷与轴承动力学特性的关系。通过建立转子-支承力学模型并推导公式,得出轴承载荷过轻会引起油膜刚度弱,导致振动增大,严重时会引起油膜失稳的结论,并结合工程案例分析以上两种情况。

    Abstract:

    The working principle of hydrodynamic journal bearing, and the features of oil film that are different from that of general mechanical elements were introduced. The relation between the load and the dynamic characteristics of bearing was analyzed. By modeling rotor-bearing system and deducing formulas, the conclusion that light load will cause weak oil-film stiffness which leads to larger vibration amplitude and oil whirl at the severe condition was put forward. The conclusion is successfully applied in dealing with typical fault of oil whirl and insufficient oil-film stiffness.

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引用本文

于光辉,杨 灵,陈 利,何 东.轴承载荷不足引起的机组振动故障分析[J].润滑与密封,2014,39(11):110-114.
.[J]. Lubrication Engineering,2014,39(11):110-114.

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  • 在线发布日期: 2015-04-21
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