Stripe theory based numerical method for solving asymmetrical hysteresis of friction force in linear rolling guideways  

作　　者：ZHAO Yang XI YinHu MAO JunHong WONG Patrick Pat Lam ZHAO Yang;XI YinHu;MAO JunHong;WONG Patrick Pat Lam(Theory of Lubrication and Bearing Institute, Key Laboratory of Education Ministry for Modern Design and Rotor-Bearing System, Xi'an Jiaotong University;Department of Mechanical and Biomedical Engineering, City University of Hong Kong)

机构地区：[1]Theory of Lubrication and Bearing Institute, Key Laboratory of Education Ministry for Modern Design and Rotor-Bearing System, Xi'an Jiaotong University [2]Department of Mechanical and Biomedical Engineering, City University of Hong Kong

出　　处：《Science China(Technological Sciences)》2016年第9期1320-1327,共8页中国科学（技术科学英文版）

摘　　要：Linear rolling guideways(LRGs) play an important role in precision engineering. In the pre-rolling region, the hysteretic friction force exerts great impacts on the positioning accuracy. Numerical and experimental studies of the hysteresis of friction force are presented in this paper. A model, which is based on the stripe theory and the simplified theory of rolling contact, is built to describe the transient hysteresis of the friction force. Then, the model is modified by taking the anelasticity effect into consideration. Experimentally, a linear motor direct-drive setup is utilized to measure the transient asymmetrical hysteresis of the friction force in the pre-rolling region of an LRG. The influences of the pre-rolling displacement and the dwelling time on the asymmetrical hysteresis of the friction force are studied. The numerical and experimental results are well correlated, which shows good accuracy of the model. The transient asymmetrical hysteresis of friction force in the pre-rolling region of LRGs can thus be determined using the model.

关 键 词：pre-rolling friction ANELASTICITY HYSTERESIS linear rolling guideway 

分 类 号：TG333[金属学及工艺—金属压力加工]