基于集成仿真的灯光渔船艏部型线优化

针对我国现有渔船标准化建设中遇到的船体型线优化难的问题,提出一种基于集成仿真优化技术的船体型线优化方法,并以一艘灯光渔船的兴波阻力性能优化为例,通过半参数化方法提取10个控制参数用于艏部型线的变换,兴波阻力采用势流理论方法进行评估,并采用Sobol算法与梯度搜索算法相结合的优化算法。基于上述的船体型线优化方法最终得到兴波阻力性能最优的船型,优化结果表明,文中提出的船体优化技术是有效的,有助于加快推进渔船船型的标准化建设。

Optimization of light-fishing vessels bow lines based on integrated simulation

In view of the existing difficulty of hull form optimization encountered in the fishing vessel standardization in China, a hull form optimization method based on integrated simulation and optimization techniques is proposed. Taking the optimization of wave resistance performance of a light fishing vessel as an example, 10 control parameters are extracted by the semi-parametric method for the transformation of the bow. Wave resistance performance was evaluated using potential flow method. The combination of Sobol algorithm and gradient search algorithm is used in optimization. Based on the hull form optimization method proposed, hull form with the optimal performance of wave resistance is finally obtained. The optimization results show the effectiveness of the technique proposed, which will speed up the standardization of fishing vessel types.