油液污染度等级模糊聚类评定方法的研究

Study on the evaluation method of oil contamination level through fuzzy clustering

用标准NAS1638评定油液污染度等级,往往与实际污染情况有很大差别。应用模糊聚类方法,建立了油液污染度等级的评定模型,以90%的置信度评定系统的污染度。该方法综合考虑5个粒度范围内的污染度等级,所得结果更为合理。

There are usually great differences from the reality with the standard code NAS1638 to evaluate oil contamination level. The present paper puts forward an evaluating model by considering five oil contamination levels through fuzzy clustering and better results can be obtained with 90% confidence.