Enriching Assembly CAD Models With Functional and Mechanical Informations to Ease CAE
Enriching Assembly CAD Models With Functional and Mechanical Informations to Ease CAE
复制标题
利用功能和机械信息丰富装配 CAD 模型以简化 CAE
DOI：
10.1115/detc2010-28805
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
J. Le´on
中科院分区：
文献类型：
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作者：
Gilles Foucault;J. Le´on
装配模型可以被看作是产品开发过程的核心，它们可以有效地为许多产品仿真行为做出贡献。装配模型通常包含3D B-Rep CAD模型，可能在组件和物料清单之间具有几何约束。然而，这些模型通常很难进行模拟处理，因为算法经常面临非常大的配置多样性。这种困难的一个根源可以在公司的实践中找到，其中一个公司的组件可能以不同的方式表示到另一个公司以及它们的接口。在任何情况下，组件之间的接口都不是显式的，这会导致繁琐的模型处理任务。本文通过对公司实践的分析说明了装配模型的准备，以简化CAE，表明传统表示的概念是有效处理装配的重要起点。此外，还描述了如何将接口和传统表示结合起来，从部件的几何模型中派生出功能和机械信息。本文使用各种标准组件给出了所提出方法的示例。ASME版权所有©2010
Assembly models can be regarded as a kernel for product development processes where they can efficiently contribute to many product simulation behaviors. Assembly models are often containing 3D B-Rep CAD models, possibly with geometric constraints between the components and bill of materials. However, these models are often difficult to process for simulations because algorithms often face a very large diversity of configurations. One origin of such difficulties can be found in companies’ practice where components may be represented differently from one company to another and their interfaces as well. In any case, interfaces between components are not explicit, which leads to tedious model processing tasks. This paper illustrates preparation of assembly models to ease CAE through an analysis of company practices, showing that a concept of conventional representations is an important starting point to efficient treatments of assemblies. In addition, it is described how interfaces and conventional representations can be combined to derive functional and mechanical information from geometric models of components. Illustrations of the proposed approach is given throughout the paper using various standard components.Copyright © 2010 by ASME