三种常用油液污染度表示法之间关系的理论研究  

Theoretical Investigation on Relation between Three Normal Oil Contaminating Levels

作　　者：刘峰璧[1] 

机构地区：[1]佛山科学技术学院,广东佛山528000

出　　处：《润滑与密封》2005年第3期97-98,共2页Lubrication Engineering

摘　　要：理论推导了油液固体污染颗粒粒度概率密度、污染颗粒数量、ISO4406污染度、NAS1638固体颗粒污染度及污染颗粒质量之间的关系。算例表明,在常见污染范围里,油液的ISO4406污染度与NAS1638固体颗粒污染度之间近似呈线性关系;NAS1638固体颗粒污染度随油液中固体污染物质量的增加而增加,两者大体呈指数关系。Mathematical relations between the probability density distribution of dimension and total number of solid contamination particles, the ISO 4406 and NAS 1638 contaminating levels and mass of solid contaminants in oil were deduced. It shows that in the common oil contamination situation, the NAS 1638 solid particle contaminating level is approximately directly proportional to the contaminating level represented by ISO 4406, NAS 1638 solid particle contaminating level increases with mass of the contamination particles and on the whole there exits a linear relation between them.

关 键 词：油液污染度 理论研究 表示法 颗粒污染度 NAS 概率密度 颗粒粒度 理论推导 颗粒质量 污染范围 线性关系 指数关系 ISO 固体 颗粒数 物质量 

分 类 号：TH137[机械工程—机械制造及自动化] O211.5[理学—概率论与数理统计]