Abstract
With inclined plane-type thrust pad bearing, the effects of the pad number or pad length on load capacity and friction coefficient were investigated by numerical analysis. The friction coefficient decreased with decreasing the pad number or increasing the pad length. The minimum oil film thickness also increased with the pad length increased. The decrease in pad number, however, enhanced the side leakage flow, especially in the inlet area of the pad, so that the minimum film thickness inversely decreased with an increase in the pad number where the pad number was smaller than 10 for 1/10^3 pad incline or smaller than 5 for 1/10^4 incline. A pad with inclined groove or pocket in its central area exhibited the excellent load capacity and low friction coefficient compared with a pad without groove, since the side leakage was considerably suppressed by the groove.
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