基于GHS软件的倾覆船舶扳正计算与分析

在考虑难船浮性和稳性的基础上,研究了倾覆船舶的扳正过程。根据船舶的受力特点,建立了打捞难船的扳正力力学模型;针对传统扳正力编程计算时间长和前期数据输入量大的问题,提出利用GHS软件的Salvage模块进行分析计算。并以某倾覆船舶扳正为例,建立三维模型并对其扳正过程进行仿真计算研究,从计算结果可以分析出最大扳正力值及其出现的扳正阶段、该船舶的稳性状态及船舶纵向上的强度分布情况。GHS软件能够合理模拟横倾船舶的扳正过程,适用于制定船舶救助打捞方案。

Calculation and analysis of righting capsized vessel based on GHS software

The uprighting process of the capsized vessel considering the buoyancy and stability of the wreck has been studied in this paper. A model of the righting force for the wreck salvage is established according to the mechanical characteristics of the wreck. The analysis and calculation are demonstrated by the salvage module of GHS software in view of the problem of righting force programme， which needs long computing time and large amount of data input. Taking the simulation of righting a capsized ship as an example， a three-dimensional model is developed and the righting process is simulated by using GHS software. The maximum righting force and the occurring phase， angle of vanishing stability and longitudinal distribution of torque values can be obtained from the analysis. And the analysis results can play a crucial role in the uprighting process of the capsized ship. The uprighting process of the inclining ship can be simulated by using GHS software， which is suitable for making salvage schemes.