并行工程环境下基于约束的产品设计理论及应用系统

Constraint based Product Design Theory and Application System within Concurrent Engineering Environment

本文从理论与实践上阐述了基于约束的设计方法如何在并行工程环境下实现面向产品生命周期的设计。首先介绍了基于约束设计方法的基本原理，包括表达产品生命周期内的信息以建立约束网络，和对设计问题的优化求解过程，即建立对约束网络的搜索算法。在此基础上，探讨了如何支持约束设计的并行设计智能框架工具（ＣＩＤＡＴ）以实现面向产品生命周期的设计。

The paper presents the constraint based design for product life cycle within concurrent engineering environment from both theoretical and practical points of view. At first the basic principle of constraint based product design is introduced. It includes building up constraint networks, that is, representing the product life cycle information fully and clearly at early design stage; and establishing search algorithm propagating through constraint networks, that is, solving the design problem. Then an Concurrent Intelligent Design Assistance Tool (CIDAT) is proposed for implementing the product life cycle oriented design.