The Effect of Oil Quantity Supplied on Micro-pitting Life for Rolling and Sliding Contact
The influence of oil quantity supplied and contact bulk temperature on micro-pitting lifetime is estimated using two-roller contact machine．The failure criterion is set as 4％ micro-pitting on contact surfaces，which is adopted from precedent researches．To quantify the，failure rate of damaged surfaces of micro pitting occurrence DBR(Dark and Bright Ratio)technique was effectively implemented for observing not a sudden emergence of macro-pitting but the transition of micro-pitting growth．The change of damaged surface area was measured and calculated by the use of dark and bright ratio of test specimen pictures taken by optical microscope．The optimum oil quantity was determined to obtain the minimum oil quantity with n0o change in bulk temperature despite of increasing the inlet oil quantity．in conclusion,the influence of supplied oil quantity and contact bulk temperature considering film parameter on micro-pitting lifetime and the surface contact strength by the S-N curves of failure rate are quantitatively reported and expressed as empirical formulas．
Gear surface strength Micro-pitting oil quantity S-N curve
Suk Man Moon Byung Wook Lee Tae-Wan Kim Yong-Joo Cho
Graduate School of Mechanical Engineering Pusan National University San 30,Jangjeon-Dong,Busan,609-7 Graduate School of Meehanical Engineering Pusan National University San 30,Jangieon-Dong,Busan,609-7 Department of Mechanical Engineering Pukyong National University San 100 Yongdang-Dong,Busan,608-739 Department of Mechanical Engineering Pusan National University San 30,Jangieon-Dong,Busan,609-735,Ko
国际会议
海口
英文
397-400
2011-02-22（万方平台首次上网日期，不代表论文的发表时间）