Manufacturability Evaluation of Machine Products by Virtual Manufacturing based on Factory Modeling

在大多数先进的工业社会中，人们迫切希望实现灵活的变量型变量生产，而由于缺乏类似生产的重复，实现优化制造的难度极大。因此，利用实物来减少生产过程中的原型和实验是合适的，而使用计算机辅助方法来提高生产效率和质量是合适的。研究了基于产品/过程模型和关联工厂模型的虚拟制造和产品功能与可制造性综合仿真的概念。主要研究结果总结如下。(1)扩展了产品/过程建模框架，增强了工艺信息的表达能力，增强了对产品功能和制造过程的过程仿真能力。特别是，为了实现产品设计的系统性改进，机床装配运动的动态行为精确地与产品规格相关联。(2)讨论了工厂建模的概念，确定了工厂建模的基本组成部分。(3)考虑了由软件工具组成的虚拟制造环境，并为后续的研究活动准备了工具的部分原型。在本研究中，高性能图形工作站按分配的预算采购，预算的其余部分用于软件工程和相关成本。

In most advanced industrial society, it is strongly desired to achieve flexible variable-type variable-volume production, and it is extremely difficult to realize optimized manufacturing due to the lack of repetition of similar production. Therefore it is considered to be appropriate to reduce the prototyping and experiments in production processes by use of physical objects, but to increase the efficiency and quality of production by use of computer aided methods. In this research, a concept of virtual manufacturing and comprehensive simulation of product functionality and manufacturability based on product/process models and associated factory models have been investigated. The major results are summarized as follows. (1) The framework for product/process modeling has extended to enhance the ability of technological information representation, and to increase process simulation capability for product functionality and manufacturing processes. In particular, dynamic behavior of machine assembly motion is precisely related with the product specification in order to realize systematic improvements of product design. (2) A concept of factory modeling is discussed, and its basic components are identified. (3) Virtual manufacturing environment which consists of software tools is considered, and some of the prototypes of the tools have been prepared for use in subsequent research activities. In this research, highperformance graphics workstations were acquired by the assigned budget, and the rest of the budget was spent for software works and related cost.