南京理工大学学报（自然科学版）Issue(2)：192-198,7.
高过载精密滚珠丝杠副弹塑性接触变形研究
Elastic-plastic contact deformation of precise ball screw pair in overload condition
摘要
Abstract
According to the load and the working characteristics of the precise balls crew pair under short-time overload,the theoretical calculation of the non-linear elastic-plastic contact deformation of the single-nut ball screw pair with overload is discussed by using the Hertz point contact theory and the elastic-plastic deformation theory. The finite element analysis model based on ABAQUS software is established considering the different force on balls in each circle. The theoretical calculation and the finite element analysis are made respectively for the contact stress and the elastic-plastic contact deformation of screw pairs. The results show that the contact plastic deformation is far less than the elastic deformation in the ball screw. By analyzing the real plastic deformation on the ball screw after bore over-load,the finite element analysis results verify the accuracy of the theoretical calculation.关键词
滚珠丝杠副/弹塑性变形/有限元分析/接触理论Key words
ball screw pairs/elastic-plastic deformation/finite element analysis/contact theory分类
机械制造引用本文复制引用
赵国平,范元勋,罗相银,李立毅..高过载精密滚珠丝杠副弹塑性接触变形研究[J].南京理工大学学报（自然科学版）,2014,(2):192-198,7.基金项目
航天专项基础研究项目(369040402) （369040402）
