本文主要介绍由船舶螺旋桨引起的激振力以及减少振动的尾部线型设计。
The paper gives a introduction to the mechanism of exciting force induced by propeller and the stern lines design that can reduce the vibration.
此外，文中还指出设计蜗尾船舶螺旋桨时，所采用的收到马力系数与常规方法应有所不同。
The expression of Bp for use in screw design of cochlea-channeled stern should be different from that for conventional ships.
整个方法对船舶螺旋桨噪声预报提供了工具，对螺旋桨的噪声控制及低噪声设计也有重要的工程价值。
The methods will not only make a key tool for noise prediction, but also play a role for noise control of the propeller in engineering project.
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