一、前言 近年来,由于磁盘录刻等新兴工业的出现,要求精密轴承的转速提高到2000～3000rpm,因此如何使得静压流体润滑精密轴系既提高转速又尽可能减少其回转精度的损失,就成为一个迫切需要研究的课题。 笔者认为,可将油润滑改作气润滑,从结构上设法用多层气膜(气膜层数≥2)支承一根转轴,犹如弹簧并联,气膜刚度并联后,其总刚度可以成倍提高。 I. Introduction In recent years, due to the emergence of new industries such as magnetic recording, precision bearings to speed up to 2000 ~ 3000rpm, so how to make the hydrostatic lubrication of precision shaft system both to increase the speed and minimize the loss of its accuracy of rotation, It becomes an urgent research topic. I believe that the oil lubrication can be changed for gas lubrication, from the structure to try to use a multilayer gas film (gas film layer ≥ 2) to support a shaft, like a spring in parallel, the stiffness of the film in parallel, its total stiffness can be doubled .