三叶错位轴承流体动力学特性的边界元分析  

Boundary Element Analysis for the Characteristics of Three Leaves Dislocated-bearing

作　　者：范体贵[1] 杨德全[2] 

机构地区：[1]赤峰学院,内蒙古赤峰024001 [2]内蒙古民族大学,内蒙古通辽028043

出　　处：《润滑与密封》2006年第4期100-102,共3页Lubrication Engineering

摘　　要：采用近年来新发展起来的边界元方法对三叶错位轴承和三叶轴承的流体动力学特性进行了数值计算,得到了轴承润滑区的流场分布、轴承内表面上的压力分布,对三叶错位轴承和三叶轴承的数值计算结果进行了比较分析。结果表明:在三叶轴承的每个尖角处形成了规则的环流,环流的方向与轴颈的旋转方向相反,三叶错位轴承(偏心率e=0.2)右叶尖角处润滑区较大,形成的环流较大,其它两叶的环流则较小;两轴承内表面压力的x分量与y分量呈现一定的变化规律,在90°和250°附近,两压力的x分量为0,在170°附近两压力的y分量为0。Lubricant dynamic characteristics in lubricant region of the three -leaves dislocated bearing were researched by using boundary element method. The distribution of flow field in lubricant and the pressure on the surface of bearing was obtained, and the numeric calculation result for three leaves dislocated-bearing was compared with that of three leaves bearing. Results show that the vortex is formed at each comer of the bearing. The direction of the vortex is opposite to that of bearing neck. A larger vortex is formed in the region of three leaves dislocated - bearing （ dislocated rate e = 0. 2 ）. x and y components of pressure vary regularly,x component is zero near 90° and 250° and y component is zero near 170°.

关 键 词：边界元方法 三叶轴承 三叶错位轴承 流场 压力场 

分 类 号：TH133.3[机械工程—机械制造及自动化]