Geometric processing for analysis
Geometric processing for analysis
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用于分析的几何处理
DOI：
10.1109/gmap.2000.838237
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发表时间：
2000
期刊：
影响因子：
--
通讯作者：
M. Price
中科院分区：
文献类型：
--
作者：
C. Armstrong;R. McKeag;H. Ou;M. Price
处理用于有限元分析的几何模型是开发和优化设计所需时间的主要因素。有效的分析可能需要通过降维(用等效线或表面元素替换材料的薄板或细棒)或细节抑制(去除分析中感兴趣的尺度以下的小特征)来简化几何模型。在许多情况下，可以将全维的详细局部模型与包含降维元素的全局模型相结合，或者可以使用在初步设计中使用的抽象模型来生成3D实体模型的初始版本。此外，对象的最合适表示取决于分析类型。这些要求对未来几代CAE软件在特征识别以及几何对象的建模和表示方面提出了重大挑战。
Processing geometric models for finite element analysis is a major factor in the time required to develop and optimise a design. Efficient analysis may require simplification of the geometric model by dimensional reduction (replacing thin sheets or slender bars of material with equivalent line or surface elements) or detail suppression (the removal of small features below the scale of interest in the analysis). There are many situations where detailed local models of full dimension could be combined with global models containing reduced dimensional elements, or in which the abstract models used in preliminary design could be used to generate an initial version of the 3D solid model. Furthermore, the most appropriate representation of an object is dependent on the analysis type. These requirements provide significant challenges for future generations of CAE software in feature recognition and the modelling and representation of geometric objects.