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Experimental study on static and dynamic characteristics of small sized aerostatic annular thrust bearings with inherently compensated restrictors

机译：具有固有补偿限制器的小型空气静止环形推力轴承静态和动态特性的实验研究

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摘要

In aerostatic bearings, small holes of 0.1-0.5 mm diameter are generally used to supply pressurized air into the bearing clearance to support a load. However, in small sized bearings of less than 10 mm in diameter, it is difficult to reduce the diameter of air feed holes to less than 0.05 mm. Therefore, small sized aerostatic bearings also use air feed holes in the diameter of 0.1-0.5 mm. Thus, the ratio of the area of feed holes to the effective bearing area in these small bearings becomes relatively large compared with that of ordinary aerostatic bearings of several tens of mm in diameter. Hence it is expected that the characteristics of small sized aerostatic bearings are greatly influenced by air flow structure around air feed holes compared with those of ordinary aerostatic bearings. Therefore, the objective of the present paper is to investigate the static and dynamic characteristics of small sized aerostatic bearings. Figure 1 shows the schematic views of the aerostatic thrust bearing with inherently compensated restrictors. In this paper, effects of bearing clearance, supply pressure and number of air feed holes on the static and dynamic characteristics were investigated experimentally.
机译：在空气静止轴承中，直径为0.1-0.5mm的小孔，用于将加压空气供应到轴承间隙中以支撑载荷。然而，在直径小于10mm的小尺寸轴承中，难以将空气进给孔的直径降低至小于0.05mm。因此，小尺寸的空气静止轴承也使用直径为0.1-0.5mm的空气供给孔。因此，与直径几十mM的普通空气静止轴承相比，将进料孔面积与这些小轴承的有效轴承区域的比率相对较大。因此，与普通的空气轴承的轴承相比，预计小尺寸的空气轴承轴承的特性受到空气进孔周围的空气流动结构的影响。因此，本文的目的是研究小型尺寸空气轴承的静态和动态特性。图1示出了具有固有补偿限流器的空气膏推力轴承的示意图。在本文中，实验研究了轴承间隙，供应压力和空气进给孔的数量的影响。

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