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纵向表面粗糙度对滚子副乏油润滑性能的影响(Effects of Longitudinal Surface Roughness on the Lubricating Performance of Starved Roller EHL Contacts)
滚子副 粗糙度 乏油 润滑性能
2010/12/28
对全膜及乏油条件下纵向粗糙度滚子副弹流润滑问题进行了求解。结果表明,滚子接触副中部与端部的润滑特性不同,由于端部效应的存在,其端部油膜厚度远低于中部。表面粗糙度会引起油膜厚度及压力的波动,在纯滚动条件下,油膜波动的波长等于粗糙度的波长,而幅值大于粗糙度的幅值。表面粗糙度会降低油膜厚度,尤其在乏油润滑条件下。供油膜厚越小,滚子接触副越容易乏油。在一定供油量下,表面粗糙度的幅值越大,波长越小,对滚子副...
Film Thickness Analysis for EHL Contacts under Steady-State and Transient Conditions by Automatic Digital Image Processing
EHL Contacts Steady-State Transient Conditions Automatic Digital Image
2008/10/21
The knowledge of the film thickness values is very important in lubricated contacts to verify the lubrication conditions. Optical interferometry is one of the most used methodologies for film thicknes...