کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
614338 | 1454809 | 2016 | 27 صفحه PDF | دانلود رایگان |
This paper presents a wear analysis procedure and the wear calculation of journal bearings for a stripped-down single cylinder engine during start-up and coast-down. For this analysis, we assume that a steady load is applied to the journal bearings. We utilize lift-off speed to decide whether a journal bearing is in the mixed elasto-hydrodynamic lubrication (EHL) regime. We formulate an equation for the modified film thickness in a journal bearing considering the additional wear volume. Also, we calculate journal bearing wear by using a modified specific wear rate considering the mixed lubrication regime. We show that the accumulated wear volume after 1 turn-on and off of an ignition switch is normally increasing with increasing surface roughness, with a few exceptions.
Journal: Tribology International - Volume 97, May 2016, Pages 440–466