多学科设计优化中的需求建模研究

Research on the Requirement Modeling of the Engineering Multidisciplinary Design Optimization

需求建模的过程就是对产品进行全过程、全系统和全性能建模的过程。具体地讲就是对产品全生命周期进行分解,按时间段建模;或者对产品进行层次分析,用专业理论进行建模;或者按产品在生产、装配和使用等过程中,体现出来的性能对产品进行描述。

Requirement modeling means the modeling of the whole process for the products, the modeling of the whole system and the modeling of the whole function. In detail, the modeling of the whole process divides the whole living period of the product, and finishes the modeling according to the time. The modeling of the whole system analysis the product by hierarchy and finishes the modeling using specialized knowledge. The modeling of the whole function means the modeling of the product functions including the manufacture, the assembling, the using, and so on..