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Design of flat pad aerostatic bearings with the aid of finite element analysis

机译:借助有限元分析设计平板空气静止轴承

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A need has been recognised for an aerostatic, flat pad bearing design procedure that has the simplicity of use of design charts, whilst retaining the accuracy offered by finite difference or finite element models. To meet this requirement a finite element code has been combined with the automatic mesh generation procedure described here. The results provided by this code for a range of bearing designs are also presented. It is shown that the identification of an optimum pressure ratio is more complex than with journal bearings, due to the lack of a natural, concentric position and the variation in pressure ratio over a number of orifices. It is concluded that the multi-criteria nature of the bearing design problem should be taken into account at an early stage. A code capable of determining a Pareto optimal but criteria constrained set of bearing designs is proposed.
机译:需要为空气静力,平坦的垫轴承设计程序认可,具有设计图的简单性,同时保留有限差分或有限元模型提供的精度。为了满足此要求,有限元代码已与此处描述的自动网格生成过程组合。还提出了该代码提供的一系列轴承设计的结果。结果表明,由于缺乏自然,同心位置和多种孔口的压力比的变化,识别最佳压力比比轴颈轴承更复杂。结论是,应在早期阶段考虑轴承设计问题的多标准性质。提出了一种能够确定Pareto最佳但标准的代码,但是标准的轴承设计集合。

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