Abstract Over the last decades, concurrent engineering and design for X approaches have introduced knowledge-based decision supports, analysis methods and feature-based modelling techniques to deliver designed solutions ready for specific lifecycle purposes. However, to cover the emerging knowledge synthesis issue in engineering design, the underlying 3D representations need to be better understood and chained. This paper aims at developing original multi-representation and multi-scale CAD models to integrate properly knowledge in their most suitable form. Reconciliation mechanisms can be set up to validate semantic continuity of the geometric models and to justify the knowledge structuring the design solutions space.

中文翻译：

---

用于知识合成的多尺度和多表示 CAD 模型协调

摘要 在过去的几十年中，X 方法的并行工程和设计引入了基于知识的决策支持、分析方法和基于特征的建模技术，以提供为特定生命周期目的准备好的设计解决方案。然而，为了涵盖工程设计中新兴的知识综合问题，需要更好地理解和链接底层的 3D 表示。本文旨在开发原始的多表示和多尺度 CAD 模型，以最合适的形式正确集成知识。可以建立协调机制来验证几何模型的语义连续性，并证明构建设计解决方案空间的知识是合理的。