The main reasons resulting in the high oil temperature is that the oil starvation and the gap geometry shape between the bush and the trunnion is not suitable to the dynamic lubricant conditions.

The products from GTL include fuel oil, base oil for lubricant, and other chemicals, which are environmentally friendly due to their few S, N, metal, and aromatic hydrocarbon content.

The results show that when only the oil film forces are applied to the rotor, there only exists the period-doubling bifurcation arising from the instability of the lubricant in the bearings.