A Set-Based Design Method for Material-Geometry Structures by Design Space Mapping
A Set-Based Design Method for Material-Geometry Structures by Design Space Mapping
复制标题
一种基于设计空间映射的材料几何结构设计方法
DOI：
10.1115/detc2015-46760
复制
发表时间：
2015
期刊：
影响因子：
4.1
通讯作者：
D. Rosen
中科院分区：
文献类型：
--
作者：
D. Rosen
这项工作的目标是一个多尺度，基于集合的设计方法，机械零部件及其制造工艺和材料与交互式识别可行的设计区域。所提出的方法的一个独特方面是通过工艺规划来调整材料特性和通过探索各种细胞结构（例如，网格、蜂窝），以实现设计目标。更具体地说，所提出的设计方法可以有效地探索通过控制工艺条件，材料性能，和/或选择适当的特征配置所需的机械性能的实现。材料的工艺性能关系和细胞结构的结构性能关系进行建模，以创建一个全面的多尺度设计空间映射数据库。贝叶斯网络分类器实现了实时“逆映射”，识别单元格，特征和工艺空间的可行区域，从而为设计师提供关于当前组件设计可行性的即时反馈。该设计方法在一类通过电子束熔炼（EBM）在Ti-6Al-4V中制造的机械部件上进行了演示。© 2015 ASME
The objective of this work is a multiscale, set-based design method for mechanical components and their manufacturing processes and materials with interactive identification of feasible design regions. A unique aspect of the proposed method is the ability to adjust both material properties, through process planning, and part geometry, through exploration of various cellular structures (e.g., lattices, honeycombs), in order to achieve design goals. More specifically, the proposed design method can effectively explore the achievement of desired mechanical properties by controlling process conditions, material properties, and/or selecting appropriate feature configurations. Material process-property relationships and cellular structure structure-property relationships are modeled to create a comprehensive multiscale design space mapping database. Bayesian network classifiers enable real-time “inverse mapping” that identify feasible regions of the unit cell, feature, and process spaces, thus providing immediate feedback to the designer regarding the feasibility of the current component design. The design method is demonstrated on a class of mechanical components that are manufactured by electron-beam melting (EBM) in Ti-6Al-4V.© 2015 ASME