滚子轴承准静态计算分析

QUASI-STATIC ANALYSIS OF ROLLER BEARING

本文提出向心圆柱滚子轴承准静态分析方法。分析时考虑了非圆滚道、套圈和滚子相对倾斜、轴承座柔性变形等因素对轴承性能的影响 ,研究了非圆滚道轴承设计的计算方法和内外圈反转时轴承的特性 ,提出了内圈倾斜时滚子承载判断方法、分片计算了倾斜滚子的接触力 ;用柔性二维接触问题的变分法计算了滚子最大应力。润滑模型考虑了赫兹区和入口区滑油的热效应及缺油的影响。并用该法对航空发动机主轴承进行了分析 。

The quasi static analysis of radial cylindrical roller bearing is introduced.The influences of the out of round raceway,the relative inclination of the roller and race,and flexible deformation of the bearing housing on bearing performance are taken into consideration.The calculation of out of round raceway and the counter rotating intershaft support bearing characteristics are studied.The precise determination of roller loading in an inclined inner race is presented,and the calculation of contact force on the inclined roller is carried out by means of the transverse“slicing”technique.The maximum stress of roller are calculated with the flexible two dimensional contact variational method.The thermal effects of oil in Hertzian zone and the entry region and the oil starvation influence are also taken into account in the lubrication model.The main bearing in an aeroengine was calculated with the quasi static analysis program on the M 150H computer.The agreement of calculated and experimental results is quite good.