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首页> 外文期刊>International Journal of Computer Integrated Manufacturing >Mid-surface abstraction for complex thin-wall models based on virtual decomposition
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Mid-surface abstraction for complex thin-wall models based on virtual decomposition

机译：基于虚拟分解的复杂薄壁模型的中间表面抽象

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摘要

Mid-surface abstraction is an effective simplification method for thin-wall models. A mid-surface model after abstraction can reduce the complexity of finite element analysis greatly. There are some methods for mid-surface abstraction. However, they are not satisfactory to handle complex models. To address this problem, this study proposes a mid-surface abstraction approach based on virtual model decomposition. The concept of face group pair is proposed to help virtually decompose thin-wall models into several virtual simple parts, and the connections between the parts are classified into three types. The topological boundary edges of the mid-surface model are then generated correctly with the help of the connection types. Meanwhile, an improved mesh-based discrete method is proposed to calculate the geometry of the mid-surface with high accuracy. Finally, some typical complex models are given to illustrate the effectiveness of the proposed method.
机译：中表面抽象是用于薄壁模型的有效简化方法。抽象后的中表面模型可以大大降低有限元分析的复杂度。有一些中间表面抽象的方法。但是，他们对处理复杂模型并不满意。为了解决这个问题，本研究提出了一种基于虚拟模型分解的中间表面抽象方法。提出面组对的概念是为了帮助将薄壁模型虚拟分解为几个虚拟的简单零件，零件之间的连接分为三种类型。然后，借助连接类型可以正确生成中间表面模型的拓扑边界。同时，提出了一种改进的基于网格的离散方法来高精度地计算中间表面的几何形状。最后，给出了一些典型的复杂模型来说明所提方法的有效性。

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