Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : September 03, 2023 - September 06, 2023
The purpose of this study is to clarify the relationship between dimple shape and seizure resistance and to derive the optimal design solution for the texture shape. The authors conducted ring-on-plate tribotests with five different dimpled specimens and measured the seizure load. The results showed that the dimple depth and area ratio had a greater influence on the seizure load than the other parameters, suggesting that elliptical dimples have higher seizure resistance than circular ones. We analyzed the maximum load-carrying capacity and fluid pressure using the TED/CPA when multiple dimples were subjected to load and sliding velocity in oil lubrication in order to clarify the effect of oil film pressure on seizure resistance. By comparing these values with the seizure load obtained from tribotests, a correlation was found between the maximum load-carrying capacity and the seizure load for dimples of similar area. This suggests that using the maximum load-carrying capacity as an indicator is effective in designing dimples with high seizure resistance.
