Automatic mesh generation of quadrilateral elements using intelligent local approach
Automatic mesh generation of quadrilateral elements using intelligent local approach
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DOI：
10.1016/s0045-7825(99)00033-x
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发表时间：
1999-08
影响因子：
7.2
通讯作者：
S. Yoshimura;Y. Wada;G. Yagawa
中科院分区：
文献类型：
--
作者：
S. Yoshimura;Y. Wada;G. Yagawa
本文提出了一种新的网格自动生成方法--智能局部法（ILA），它能很好地控制二维平面四边形单元的尺寸和长宽比。ILA可以直接扩展到三维实体中的六面体单元。这里的元素创建顺序，考虑到当地的几何约束信息和用户的质量要求的元素。用户可以指定以下两个数值字段，（a）元素大小字段和（B）元素纵横比字段。元素创建的优先级字段也在ILA中指定。为了有效地处理各种复杂的几何约束，高品质的四边形单元，模糊知识处理技术有效地利用。ILA使用面向对象的技术实现。通过生成多个四边形网格，详细演示了ILA的基本性能。
This paper describes a new automated mesh generation method named Intelligent Local Approach (ILA), which well controls both size and aspect ratio of quadrilateral element in a two-dimensional plane. The ILA can be straightforwardly extended to hexahedral elements in a three-dimensional solid. Here elements are created sequentially, considering local information on geometrical constraints and user's demand on quality of elements. A user can specify the following two numerical fields, (a) a field of element size and (b) that of element aspect ratio. A field of priority of element creation is also specified within the ILA. To efficiently deal with various complicated geometrical constraints for high quality quadrilateral elements, a fuzzy knowledge processing technique is effectively utilized. The ILA is implemented using an object-oriented technique. Fundamental performances of the ILA are demonstrated in detail through generating several quadrilateral meshes.