超大型半潜船振动设计研究——甲板室总振动控制设计

On vibration design of ultra-large semi-submersibles— control design of global vibration of deck house

采用三维有限元分析技术、依托项目船型进行四种不同设计方案的甲板室总体振动研究,从增加甲板室支撑刚度和剪切刚度出发,结合半潜船自身的结构布置特点,研究各方案对结构设计的影响及优缺点,为超大型半潜船的甲板室振动控制设计提供理论与技术支撑。

This paper describes four different design schemes about the global vibration investigation of the deck house for the ultra-large semi-submersibles by three-dimensional finite element method (FEM). The influence of the different schemes on the structural design and their advantages and disadvantages have been studied based on the enhanced supported stiffness and shear the stiffness of the deck house, combined with the structural arrangement characteristics of the semi-submersibles. It can provide the design foundation for the control design of the deck house on the ultra-large semi-submersibles.