中文摘要：

为探讨弹性复合圆柱滚子轴承滚动体与滚道的接触问题,首先采用有限元方法和经典赫兹接触理论计算方法对实心圆柱滚子轴承的接触应力与变形进行计算,并将两种方法得到的计算结果进行比较,比较结果表明：两种计算方法结果误差在10%以内,由此可知,有限元方法对计算轴承接触问题具有准确性。鉴于实心圆柱滚子轴承与弹性复合圆柱滚子轴承的内外圈接触副相似,可采用有限元方法对弹性复合圆柱滚子轴承接触应力分析。通过有限元方法对不同载荷下的弹性复合圆柱滚子轴承的接触应力、接触半宽、接触位移以及接触应力沿轴向分布进行计算与分析,得到的结果表明：一定载荷下,弹性复合圆柱滚动体的接触位移及接触半宽随着填充度的增大而增大;不同载荷下,弹性复合圆柱滚动体接触应力及等效应力随填充度的增大均存在极小值,且随着载荷的增大,极小值呈一定规律变化。弹性复合圆柱滚子轴承较实心圆柱滚子轴承在接触应力方面具有明显优势,设计合理的填充度能降低弹性复合圆柱滚子轴承的接触应力和改善＂边缘效应＂。

英文摘要：

In order to research into the contact between the rolling element and the rollaway nest of the elastic composite cylindrical roller bearing,the finite element method and the classical Hertz contact theory are separately used to calculate the contact stress and being out of shape of the cylindrical roller bearing. The two results have the error of ten percent. Thus the finite element method is verified to be accurate in roller bearing. Since the contact pairs of the inner and outer confine of the two types of roller bearings are similar,the finite element method could be used in the research of the contact stress of the elastic composite cylindrical roller bearing. Calculation and analysis are made on the contact stress,contact half width,contact displacement and the distribution along the axial direction under different burdening. The results show that under a certain burdening,elastic composite cylindrical roller contact displacement and contact half width increase with the expansion of filling degree; Under different burdening,elastic composite cylindrical roller contact stress and equivalent stress both have the minimum value along with the expansion of filling degree,and with the increase of burdening,the change of the minimum value is organized. In terms of contact stress,the elastic composite cylindrical roller bearing is superior to the solid cylindrical roller bearing. Reasonable filling degree can reduce the contact stress of elastic composite cylindrical roller bearings and improve the＂edge effect＂.