近年来随着船舶功率的提高和推进轴系的不断大型化，轴系的振动问题变得严重起来，且常常引发船舶严重的艉部振动。

Of late years, with the development of huge shafting, the vibration problem becomes more severe, and this usually causes grave vibration of the ship's rear part.

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文章认为在船尾型线设计中若不考虑横剖线的UV度、各水线去流角大小等对船体振动的不利影响，很可能会导致艉部水流异常；

This paper posits that the flow at stern will be unusual if designing stern lines without considering of U or V of body lines and exit angle of water lines;

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