平箔式箔片径向气体轴承的试验研究  

Experimental Study of Plate Foil Journal Gas Bearings

作　　者：侯予[1] 王秉琛[1] 熊联友[1] 陈纯正[1] 

机构地区：[1]西安交通大学

出　　处：《西安交通大学学报》1999年第3期60-63,共4页Journal of Xi'an Jiaotong University

基　　金：国家教委博士点基金

摘　　要：对一种用于高速低温透平膨胀机的新型平箔式箔片径向气体轴承进行了试验研究，试验箔片径向轴承的直径为２５０ｍｍ．试验结果表明，轴承的结构参数决定了轴承的性能；通过选取合适的轴承半径间隙和刚度，此种结构的箔片轴承具有较好的稳定性及启停性能．因此，该型轴承在小型高速低温透平膨胀机中具有广阔的应用前景．文中还就轴承结构参数对轴承－转子系统稳定性的影响进行了讨论．This work is concerned with the application of gas lubricated plate foil journal bearing for a high speed cryogenic turboexpander. Tests were conducted for 25 0 mm diameter journal bearings. The results indicate that the rotor bearing system stability and durability could be enhanced by properly choosing the bearing clearance and the foil stiffness. The foil bearing designed here can achieved sufficently good operation performance. This confirms that this type of plate foil journal bearing is feasible and hopeful as a reliable bearing applying to the high speed turboexpander.

关 键 词：气体轴承 箔片 轴承 试验 透平式膨胀机 

分 类 号：TB653[一般工业技术—制冷工程] TH133.3[机械工程—机械制造及自动化]