Analysis of Elastohydrodynamic Lubrication of Ball Screw with Rotating Nut
The isothermal elliptical contact elastohydrodynamic lubrication (EHL) problem in ball screw with rotating nut was studied.Numerical solution to the problem was obtained for various parameters with a multigrid solver.Based on work mentioned above,the influence of the working parameters such as the rotating speed of screw shaft and the contact force,on the lubricant oil film thickness and pressure is analyzed.The results showed that,with the increasing loads,the pressure became higher,the film thickness became smaller.On the other hand,when the angular velocity was higher,the film thickness was higher,while the pressure spike was closer to the center of the contact.Because of the spinning,the slide-roll ratio was not a constant.
ball screw mechanism elastohydrodynamics lubrication film thickness friction coefficients
Shigang Mu Xianying Feng
School of Mechanical Engineering,Shandong University, Jinan 250061,China
国际会议
台湾
英文
3132-3139
2011-12-11（万方平台首次上网日期，不代表论文的发表时间）