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虚拟制造 ( VM)为产品设计和生产过程的优化提供了集成的建模和仿真环境。以设计为中心 VM在设计阶段为设计者提供了制造信息 ,它采用基于制造的仿真来优化产品和过程设计 ,从而实现制造目标。为此 ,提出了以设计为中心 VM系统的体系结构 ,分析了 VM环境下有限元分析的特点 ,并用 IDEF1 X方法描述了有限元分析的信息模型。基于以设计为中心 VM系统的集成环境 ,对某产品关键机械零件进行了有限元分析 ,优化了产品结构。结果表明 ,有限元分析与 VM系统的集成有效地减少了产品开发的时间和成本 ,提高了产品质量。
Virtual Manufacturing (VM) provides an integrated modeling and simulation environment for the optimization of product design and manufacturing processes. Design-Centric VMs provide designers with manufacturing information during the design phase, which uses manufacturing-based simulation to optimize product and process design to achieve manufacturing goals. Therefore, the architecture of design-centric VM system is proposed, the characteristics of finite element analysis in VM environment are analyzed, and the information model of finite element analysis is described by IDEF1 X method. Based on the integrated environment of design-centric VM system, finite element analysis of the key mechanical parts of a product is carried out to optimize the product structure. The results show that the integration of finite element analysis and VM system can effectively reduce the time and cost of product development and improve product quality.