Multiaxial life prediction of hydrodynamic plain bearings

Multiaxial life prediction of hydrodynamic plain bearings
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流体动压滑动轴承的多轴寿命预测

DOI:
10.1051/matecconf/201816516001
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发表时间:
2018
期刊:
影响因子:
--
通讯作者:
Christoph Broeckmann
Christoph Broeckmann
中科院分区:
--
文献类型:
--
作者:
Henrik Wünsch;Christopher Sous;Christoph Broeckmann

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径向轴承安装在透平机械和与传动技术相关的各种部件中。所有这些应用程序都要求高度的可靠性。轴、润滑剂和轴承壳体的功能相互作用导致轴承衬里内部处于多轴应力状态。然而,轴承材料在这些多轴载荷作用下的寿命评估在设计过程中大多被忽视。基于二次失效假设(QFH),建立了一套完整的长期疲劳评估方法。该方法满足坐标变换的不变性要求,考虑了正应力和负应力,适用于三维几何构型的非比例多轴载荷。
Journal bearings are installed in turbomachinery and in all kind of components related to drive technology. All of these applications expect a high degree of reliability. The functional interaction of shaft, lubricant and bearing shell result in a multiaxial stress state within the bearing lining. However, the life assessment of the bearing material exposed to these multiaxial loads is mostly neglected in the design process. The presented research work formulates a complete methodology for a long-term fatigue assessment, based upon the Quadratic Failure Hypothesis (QFH) This approach satisfies the invariant requirements of coordinate transformation, takes into account positive and negative stresses and is applicable to non-proportional multiaxial loads in 3-dimensional geometric configurations.
Zur Bestimmung des Sauerstoff-18-Gehaltes von Phosphaten
DOI: --
发表时间: 1959
期刊:
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