摘要
静稳性分析是半潜式平台设计过程中的重要过程,半潜式平台几何形状的复杂性给静稳性分析带来了困难。本文阐述了表面建模技术,着眼点由几何体转为表面;针对半潜式平台复杂的几何形状,提出了辐射积分方式,用于水线面面积、漂心、排水体积、浮心的计算;提出了基于向量投影的坐标系转换技术,能够实现海洋平台倾斜、吃水改变后的浮性参数计算。以浮性基本参数计算和坐标系转换为基础,能够实现静稳性的计算。
The analysis of static stability is an important process in the design of semi-submersible,the complexity of the geometry of semi-submersible poses difficulties for analysis of static stability.This paper describes the surface modeling technology,focus from geometry to the surfaces;in consideration of the floating platform complex geometry,proposes radiate integral,used to calculate the area of waterline,centroid of waterline,drainage volume,floating heart;A coordinate transformation algorithm based on vector projection is proposed,calculation of buoyancy parameters for tilting and draught of offshore platforms.Based on the calculation of the basic parameters of buoyancy and the transformation of coordinate system,Calculation of static stability can be calculated.
作者
逯广东
闫铁
单丹丹
LU Guang-dong;YAN Tie;SHAN Dan-dan(School of Petroleum Engineering,Northeast Petroleum University,Daqing,Heilongjiang 163318,China)
出处
《海洋工程装备与技术》
2018年第B10期26-29,共4页
Ocean Engineering Equipment and Technology
关键词
辐射积分方法
表面建模
静稳性分析
半潜式平台
radiate integral method
surface modeling
static stability analysis
semi-submersible
