三体船构型复杂，侧体布局对其阻力性能有很大的影响。基于计算流体动力学（Computational Fluid Dynamics，CFD）理论，利用SHIPMDO-WUT软件平台构建一种侧体布局自动优化方法。以某高速三体船为例，进行侧体布局的优化，结果表明：在4个不同弗劳德数下，优化船较母型船的兴波阻力均有所下降，总阻力也相应减小。得出在4个不同弗劳德数下总阻力最小的侧体布局方案，表明该方法的可行性与有效性。研究内容可为三体船减阻优化设计提供参考依据。
The configuration of trimaran is complex, and the side hull layout is of a great influence on its resistance performance. Based on the Computational Fluid Dynamics (CFD) theory, an automatic optimization method of side hull layout is constructed with the SHIPMDO-WUT software platform. Taken a high-speed trimaran ship for example, the optimization of side hull layout is performed. The results show that, under four different Froude numbers, the wave making resistances of optimized ship decrease compared with the parent ship, and the total resistances decrease correspondingly. The side hull layout scheme with the minimum total resistance under four different Froude numbers is obtained, which shows the feasibility and effectiveness of the method. The research content can provide reference for the trimaran resistance reduction optimization design.