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Multicriterion evolutionary optimization of ship hull forms for propulsion and seakeeping.

机译：用于推进和海上航行的船体形式的多准则进化优化。

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摘要

For a given set of ship design and operational criteria, there exists a trade-off between the ship's calm water powering performance and its seakeeping performance. Ship hulls that are designed for optimal powering performance can have poor sea keeping performance, and vice versa. It is typically not possible to obtain the global optimal objective for both of these objectives due to the competition between the powering and seakeeping performance functions and the design constraints. The set of globally nondominated solutions, or Pareto front, considering these competing criteria is searched for by navigating the multi-modal search space for these criteria using a multicriterion, population-based evolutionary algorithm optimization process. The optimization process uses a nontraditional objective function formulation that eliminates the need to tune the penalty function parameters for each new problem formulation and appears to provide a more thorough representation of the numerically approximated Pareto front. Results show that properly integrating this optimization process with the design criteria yields a set of hydrodynamically superior design solutions. The problem formulation and development is applicable to naval surface vessels and applied to a monohull frigate type example.*; *This dissertation is a compound document (contains both a paper copy and a CD as part of the dissertation). The CD requires the following system requirements: Adobe Acrobat.
机译：对于给定的一组船舶设计和运行标准，在船舶的平静水动力性能和海上航行性能之间要进行权衡。为实现最佳动力性能而设计的船体，其海上航行性能可能很差，反之亦然。由于动力和航海性能功能与设计约束之间的竞争，通常不可能同时获得这两个目标的全局最优目标。通过使用基于多准则，基于种群的进化算法优化过程在这些条件的多模式搜索空间中进行导航，可以搜索考虑了这些竞争条件的一组全局非控制解或Pareto前沿。优化过程使用非传统的目标函数公式，从而无需为每个新问题公式调整惩罚函数参数，并且似乎可以更全面地表示数值近似的Pareto前沿。结果表明，将此优化过程与设计标准正确集成可以产生一组流体动力学优越的设计解决方案。问题的提出和发展适用于海军水面舰艇，并适用于单舰护卫舰类型的例子。 *本论文是复合文件（作为论文的一部分，包含纸质副本和CD）。该CD需要满足以下系统要求：Adobe Acrobat。

著录项

  • 作者

    Zalek, Steven Francis.;

  • 作者单位

    University of Michigan.;

  • 授予单位 University of Michigan.;
  • 学科 Engineering Marine and Ocean.
  • 学位 Ph.D.
  • 年度 2007
  • 页码 194 p.
  • 总页数 194
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 海洋工程;
  • 关键词

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