浮体剖面载荷的几种计算方法

Computing methods for cross section loads of floating bodies

水中浮体的剖面载荷计算对于总体强度分析起着至关重要的作用。利用三维势流水动力软件预报浮体的运动及受力响应,以此结果为前提条件,采用三种不同的方法(压力积分法、多体法和广义模态法)。计算浮体的剖面载荷:最后以一个半潜平台结构为算例,并得到三种方法的相互验证。

The calculation of the cross section loads of floating bodies in water is very important for global strength analysis. The motions and forces of floating bodies are predicted by 3D hydrodynamic software. Based on the results,the cross section loads of floating bodies are computed with three methods：Pressure integrating method, Multiple-bodies analysis method and Generalized Modes. Finally ,the three methods have been validated through the case of a semi-submarine platform.