EFFECTS OF COUPLING MISALIGNMENT ON VIBRATIONS OF ROTATING MACHINERY
EFFECTS OF COUPLING MISALIGNMENT ON VIBRATIONS OF ROTATING MACHINERY
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DOI：
10.1006/jsvi.1995.0407
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发表时间：
1995-08-31
影响因子：
4.7
通讯作者：
PRABHU, BS
中科院分区：
文献类型：
--
作者：
SEKHAR, AS;PRABHU, BS
通过耦合的轴对齐不当通常会导致许多旋转机器的严重振动问题。通过考虑挠度，斜率，剪切力，每个节点的自由度八度，使用高阶元件使用高阶元件进行建模。在模型中得出并引入了由于柔性耦合未对准而产生的反作用力。评估了两个谐波中的不平衡响应。通过使用FEM分析，可以轻松地建模与未对准的谐波增加。相对于弯曲模式形状的耦合的位置对振动有很大影响。 （c）1995 Academic Press Limited。
Improper aligning of shafts through couplings often leads to severe vibration problems in many rotating machines. The rotor-bearing system is modelled using higher order finite elements by considering deflection, slope, shear force, bending moment with eight degrees of freedom per node. The reaction forces, moments developed due to flexible coupling misalignment are derived and introduced in the model. The imbalance response in two harmonics is evaluated. The increase in harmonics with misalignment can easily be modelled by using FEM analysis. The location of the coupling with respect to the bending mode shape has a strong influence on the vibrations. (C) 1995 Academic Press Limited.