Abstract: The topology optimization and shape parameter optimization technology are applied to the transverse webs in cargo hold. It enables not only the design of vertical girder without cross brace for the longitudinal bulkhead, but also the reduction of the structural weight of the cargo hold and the simplification of the construction process. The number and the length of the swash bulkhead can be minimized with the significant reduction of the envelope value of the static bending moment under all the operation conditions by the reasonable arrangement of the transverse bulkhead and the longitudinal bulkhead, which can improve the ship safety. It’s expected that the construction cost of the cargo hold of a very large crude carrier (VLCC) will be reduced by more than 5%.

Key words: very large crude carrier (VLCC), without cross brace, swash bulkhead, topology optimization, cargo hold arrangement, common structural rules for bulk carriers and oil tankers (CSR-H)

摘要： 在货舱横向强框架上应用拓扑优化和形状参数优化技术,不仅实现了VLCC纵舱壁垂直桁无横撑设计的目的,而且使货舱区结构重量减轻,建造工艺简化。通过合理布置货舱的横舱壁和纵舱壁,可以在实现制荡舱壁数量和长度最小化的同时,明显减小装载手册所有工况的静水弯矩包络值,从而提高船体的安全性。预计可以降低VLCC货舱区建造成本的5％以上。

关键词: 超大型油船, 无横撑, 制荡舱壁, 拓扑优化, 货舱布置, 油船散货船结构共同规范