CAD-free hydrodynamic optimisation using consistent kernel-based sensitivity filtering
CAD-free hydrodynamic optimisation using consistent kernel-based sensitivity filtering
复制标题
使用一致的基于内核的灵敏度过滤进行无 CAD 流体动力学优化
DOI：
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复制
发表时间：
2015
期刊：
影响因子：
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通讯作者：
T. Rung
中科院分区：
文献类型：
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作者：
J. Kröger;T. Rung
本文主张一致的基于核的过滤函数的好处，致力于从CAD自由伴随水动力形状优化程序获得的形状灵敏度的过滤。重点给出了显式修正截断高斯滤波器在离散空间中进行一阶一致性约束。该方法的性质支持表面网格点的不规则分布，而不修改形状敏感性的影响。该方法有利于一个明显简单的显式拉格朗日曲面参数化在一个温和的计算盈余。结果表明，一个一致的方法的好处，关于表面网格属性的保护和朝向最优的方法。实例表明了船尾和尾流均衡导管实例的实际影响。因此，可以使用单个工具而不是工具链在几个小时的周转时间内检查具有初始形状的大（局部）变形的设计。
This paper advocates the benefits of consistent kernel-based filter functions dedicated to the filtering of shape sensitivities obtained from CAD-free adjoint hydrodynamic shape optimisation procedures. Emphasis is given to explicit corrections of truncated Gaussian filters in discrete space subjected to first-order consistency constraints. The nature of the approach supports an irregular distribution of surface-mesh points without modifying the shape sensitivity influences. The methodology facilitates an apparently simple explicit Lagrangian surface parameterisation at a moderate computational surplus. Results indicate benefits of a consistent approach as regards the conservation of surface-mesh properties and the approach towards optima. Examples indicate the practical impact for aftship and wake-equalising duct examples. Accordingly, designs that feature large (local) deformations of the initial shape can be examined during a few hours of turn-around time using a single tool rather than a tool chain.
DOI：
10.1007/978-3-540-68942-3
发表时间：
2008-07
期刊：
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影响因子：
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作者：
C. Bischof;H. M. Bücker;P. Hovland;U. Naumann;J. Utke
通讯作者：
C. Bischof;H. M. Bücker;P. Hovland;U. Naumann;J. Utke