Abstract: The stability of the 3D geophysical survey vessel is an important problem to be solved in the design process due to the large area of its superstructure and the high position of the center of gravity. This paper introduces the stability optimization design of the first 3D geophysical survey vessel with six cables that was fully self designed in China. Firstly, it presents the characteristics of the 3D geophysical survey vessel. And then it introduces the effect of the optimization of the general arrangement and the control of the weight and the center of gravity of the lightship on the stability. Finally, it analyzes the calculation and optimization of the intact stability and the damage stability. The summarization and considerations of the stability characteristics can provide guidance for the future design.

Key words: 3D geophysical survey vessel, intact stability, damage stability, optimization design

摘要： 三维物探船因上层建筑面积大、重心位置高,其稳性问题是设计过程中需解决的重要问题。文章以国内首艘完全自主设计的6缆三维物探调查船为例,介绍其稳性优化设计方面的经验。首先对三维物探调查船的特点进行介绍;然后介绍总体布置优化、空船重量重心的控制对稳性的影响;最后分别就完整稳性和破舱稳性的计算特点及优化方法进行分析。该文总结了三维物探调查船的稳性特点和注意事项,为今后设计工作提供指导。

关键词: 三维物探调查船, 完整稳性, 破舱稳性, 优化设计