关键词: 三维物探调查船, 完整稳性, 破舱稳性, 优化设计

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