船舶用低速2サイクル型ディーゼルエンジンの就航条件及び潤滑油内元素とシリンダー部摩耗量の関係
In a low-speed 2 cycle diesel engine, Relationship between the service conditions, elements in lubricating oil and cylinder part wear
著者:
相原 涼馬 ファマキンワ アヨ 坂本 淳司 澁谷 忠弘 （横浜国大）
発刊日:
公開日:
Anomaly detectionCondition-based maintenanceFluorescent X-ray analysisGaussian graphical modelGraphical lassoLubricating oilMarine engine
概要
The prediction of wear rate is important to estimate useful life of the equipment. This paper focuses on lubricating oil analysis to predict wear out effects caused. Condition based maintenance using lubricating oil analysis can reveal failures before it actually occurs. However, in lubricating oil analysis, attention is often paid to the transition of iron. In my opinion it is difficult to make an abnormality judgment focusing on iron component only. In this research, the oil used in the cylinder is analyzed with different engine service conditions. The relationship between the service conditions and the elements in the lubricating oil are established. In addition, the relationship between different element in the oil are established. Firstly, Fluorescent X-ray analysis is adopted to reveal substances contained in lubricating oil. Secondly, the relationship between multivariable by applying a Gaussian graphical model to the analysis result is examined. From the study, it was found that the iron in the lubricating oil is strongly related to sulphur and vanadium caused by fuel and copper by wear.
