摘要
研究了可倾瓦推力轴承在名义转速分别为 2 0 0 0 r/ min和 40 0 0 r/ min下 ,当载荷突然变化时推力轴承油膜温度和油膜厚度的瞬态变化规律 .实验结果表明 :当载荷突然增大时 ,油膜温度以及进油边温度上升 ,油膜厚度减小 ;随着载荷变化幅度的增大 ,温度上升幅度也增大 ,油膜厚度进一步减小 ;在载荷变化相同的情况下 ,相同时间间隔内转速高时油膜温度增大幅度比转速低时要大 ,而油膜厚度减小幅度比低转速下小 .
The transient thermal effect of a tilting pad thrust bearing in the operation process with sudden variation in load and at different rotational speeds has been experimentally investigated. The results indicate that the temperature of oil film and the temperature of the entrances and outlets of the pad increase and the mean oil film thickness decreases with the sudden increase of the carrying loads. The rising amplitude of the oil film temperature increases and the decreasing amplitude of the mean oil film thickness increases with the increase of the load variation. The variation amplitude of the oil film temperature is larger at higher running speed, and the diminution amplitude of the mean oil film thickness is smaller at higher running speed under the same load variation.
出处
《摩擦学学报》
EI
CAS
CSCD
北大核心
2001年第1期55-58,共4页
Tribology
基金
国家自然科学基金!重大项目资助 (5 949370 3)
