摘要
为了获得阻力性能优良船型,以兴波阻力理论为基础,利用非线性规划法并结合CAD技术研究最小阻力船型的优化设计.以总阻力为目标函数,总阻力用兴波阻力和平板摩擦阻力之和来表达,设计变量取船型修改函数的参数,在保证必要的排水量为基本约束条件下,选取Wigley船型为初始船型,分别对船体的首部和全船线型进行优化设计.通过将改良船型的阻力性能、船体线型和基于Michell积分法的优化计算结果相比较,证实了在相同的设计参数和约束条件下,采用Rankine源法进行船型优化结果更可靠.
In order to get the excellent hull form with least resistance performance, an optimization de- sign model of minimum resistance is proposed based on the nonlinear wave resistance theory, the non- linear programming method combined with the CAD technology is used to solve the problem. Objec- tive function is minimum total resistance which can be expressed as sum of wave resistance and friction resistance. The parameter of hull form modification function is used the design variables, and the ap- propriate displacement as the constraints to optimize the bow shape and whole ship. The s60 ship model is chosen as initial hull, which is improved to obtain the final hull form. Compared improved hull form resistance performance and body lines with the results of Michell integral method, on the condition the same design variable and constraints condition, we can conclude that the method based on the Rankine source method is more reliable.
出处
《武汉理工大学学报（交通科学与工程版）》
2010年第2期358-361,共4页
Journal of Wuhan University of Technology（Transportation Science & Engineering）
