...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Ocean Engineering >An optimization approach for fairing of ship hull forms
【24h】

An optimization approach for fairing of ship hull forms

机译：船体外形整流罩的优化方法

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This paper presents a numerical fairing procedure to be used at the preliminary design stage to create high-quality ship hull form geometry. The procedure is based on a variational optimization approach in which a fairness measure related to the surface curvature is the objective function to be minimized subject to a set of geometric constraints to ensure that the final form has the required geometric characteristics. The optimization variables are selected as the control points of a B-spline surface representing the initial hull form. A nonlinear direct search technique is employed to solve the problem. The methodology is applied for typical ship forms to indicate that, provided that the designer can specify appropriate design objectives and geometric constraints, the methodology can produce alternative hull forms with significantly improved fairing characteristics. The choice of the fairness objective function is shown to have a crucial effect on the quality of the hull surface. Highly nonlinear exact fairness functionals yield surfaces of high quality at the expense of high-computerized effort.
机译：本文提出了一种数值整流罩程序，该程序将在初步设计阶段使用，以创建高质量的船体形状几何。该程序基于变分优化方法，其中与表面曲率相关的公平性度量是要受一组几何约束条件约束的最小目标函数，以确保最终形式具有所需的几何特征。选择优化变量作为代表初始船体形式的B样条曲面的控制点。采用非线性直接搜索技术来解决该问题。该方法适用于典型的船型，以表明只要设计者可以指定适当的设计目标和几何约束，该方法就可以生产具有明显改善的整流罩特性的替代船体型。公平目标函数的选择显示出对船体表面质量的关键影响。高度非线性的精确公平性函数会以付出大量的计算机工作为代价来生成高质量的曲面。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号