关键词: 水面舰船, 初稳性高, 指标要求, 取值范围

Abstract: The stability of a surface ship is not only affected by the inherent characteristics, such as scale, shape, breadth, freeboard and superstructure, but also by the movement or change of the load on the ship during the operation. When the heeling angle of the ship is less than 15°, the stability of the surface ship is called the initial stability. The initial stability height is the index to represent the initial stability of the surface shape, with a definite limit requirement in the relevant ship standards and rules at home and abroad. It introduces the necessity of setting up the index requirement of the initial stability height of the surface ships, and analyzes the factors that should be considered in ascertaining the initial stability height. The range of the initial stability height is proposed in order to provide guidance and to help for the development and delivery of the surface ships in China.

Key words: surface ships, initial stability height, index requirement, range