CAREER: Decomposition-Based Assembly Synthesis of Bistructural Products

这项职业补助提供资金，用于开发设计和制造中离散建模和优化的综合研究和教育计划。研究的目标是开发一种系统的方法，在进行详细的部件设计之前，合成可行的双结构产品组件-具有由汽车车身等内部结构支撑加固的外部外壳的产品。通过对结构拓扑优化输出的变换和分解，实现了基于图形分解的内部结构支撑和外部围护结构几何结构的自上而下的多部件组合综合。其目的是为机械工程专业学生提供对各种并行工程问题的统一看法，使他们能够在离散的选择中做出决策，并为理解、设计和利用离散建模和优化方法应用于这些问题奠定坚实的基础。如果研究成功，将为通过分解进行双结构产品的装配综合提供理论基础，分解会影响装配产品的整体结构刚度和尺寸误差以及零部件的可制造性和可装配性。它将对汽车、航空航天和造船等双结构设计盛行的行业产生积极影响。该教育计划将通过倡导离散建模和优化与设计和制造的相关性，影响广泛的机械工程社区。它将通过将研究成果作为个案研究引入研究生课程，并在本科课程中使用开发的软件，实现与研究计划的结合。

This CAREER grant provides funding for the development of an integrated research and education program on discrete modeling and optimization in design and manufacturing. The research objective is the development of a systematic method for synthesizing feasible assemblies of bistructural products --- products with external enclosure reinforced by internal structural supports such as automotive bodies --- before conducting the detailed component design. Top-down synthesis of a multi-component assembly will be achieved based on the graph-based decomposition of the internal structural supports and external enclosure geometry, via the transformation and decomposition of a structural topology optimization output. The educational objective is to provide mechanical engineering students with a unified view of various concurrent engineering problems as decisions among discrete choices and a solid foundation to understand, design, and utilize discrete modeling and optimization methods as applied to these problems.If successful, the proposed research will provide a theoretical base for the assembly synthesis of bistructural products via decomposition, which influences the overall structural stiffness and dimensional errors of the assembled products and the manufacturability and assembleability of the components. It will positively impact industries where bistructural design is prevalent, such as automotive, aerospace, and ship building. The educational plan will impact a broad mechanical engineering community by advocating the relevance of discrete modeling and optimization to design and manufacturing. It will achieve integration with the research plan by the introduction of research results to a graduate course as case studies and by the use of the developed software in a undergraduate course.