The Study of Contact Pressure Analyses and Prediction of Dynamic Fatigue Life for Linear Guideways System

作     者：Thin-Lin Horng 

作者机构：Department of Mechanical Engineering Kun-Shan University Tainan Chinese Taipei 

出 版 物：《Modern Mechanical Engineering》 (现代机械工程（英文）)

年 卷 期：2013年第3卷第2期

页      面：69-76页

学科分类：1002[医学-临床医学] 100214[医学-肿瘤学] 10[医学] 

主　　题：Linear Roller Guideways System Analysis System Stress Analyses Prediction of Fatigue Life 

摘      要：The application of the linear guideways is very extensive, such as automation equipment, heavy-duty carry equipment, heavy-cut machining tool, CNC grinding machine, large-scale planning machine and machining center with the demand of high rigidity and heavy load. By means of the study of contact behavior between the roller/guideway and roller/slider, roller type linear guideways can improve the machining accuracy. The goal of this paper is to construct the fatigue life model of the linear guideway, with the help of the contact mechanics of rollers. In beginning, the analyses of the rigidity of a single roller compressed between guideway and slider was conducted. Then, the normal contact pressure of linear guideways was obtained by using the superposition method, and verified by the FEM software (ANSYS workbench). Finally, the bearing life theory proposed by Lundberg and Palmgren was used to describe the contact fatigue life.