空心圆柱滚子接触变形的一种计算方法  

An Analytical Method for Calculating of Hollow Cylindrical Roller Contact Deformation

作　　者：李伟建[1] 潘存云[1] 王荣吉[1] 张湘[1] 

机构地区：[1]国防科学技术大学机电工程与自动化学院,长沙410073

出　　处：《轴承》2009年第8期1-5,共5页Bearing

基　　金：中国博士后科学基金(20080441284);湖南省自然科学基金(09JJ3108)

摘　　要：空心圆柱滚子与套圈间的接触属于非Hertz接触问题。通过对空心圆柱滚子接触特性的分析,发现空心滚子与内、外圈具有线接触变形和本身弹性弯曲变形的双重特性,把空心度作为影响接触变形的一个重要参数,提出了一种计算空心滚子接触变形的方法。该方法计算的结果与有限元方法获得的结果进行对比,结果表明:对于3种不同规格的滚子分别在不同空心度及外载荷的情况下,两者计算结果相当吻合,该计算式可作为空心滚子接触变形计算的一个参考公式。The hollow cylindrical roller/race contact belongs to the Non - Hertz contact problem. With the analysis of contact characteristic of hollow cylindrical roller, the two - sided characteristics of this type of contact are found： line contact deformation between hollow roller and race and elastic bending deformation of the hollow roller. A method is presented for calculating of hollow roller contact deformation, in which hollowness is considered as an important parameter that affects the contact deformation. For validation, the method is compared to results obtained by FEM analysis. It is shown that two results are comparatively identical as for three types of roller under the condition of different hollowness and external loads.

关 键 词：滚动轴承 空心圆柱滚子 Non—Hertz接触 空心度 接触变形 有限元 

分 类 号：TH133.332[机械工程—机械制造及自动化] O242.21[理学—计算数学]