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变动设计是为了克服传统 CAD 系统的缺点而发展起来的一种 CAD 新技术,它着重强调产品模型建模与修改的方便性,强调产品模型内部各子部分之间的联系和产品与产品之间的联系,实现多个产品的关联设计与联动修改。本文首先分析了传统 CAD 系统的设计流程与存在缺点。提出了变动设计的概念与功能要求,进而分别讨论了产品全过程变动设计,多类模型变动设计与多个设计对象之间的变动设计问题。
Variational design is a new CAD technology developed to overcome the shortcomings of the traditional CAD system. It emphasizes the convenience of modeling and modification of the product model, emphasizes the connection between the sub-parts within the product model and between the product and the product Contact, to achieve a number of products related to the design and linkage changes. This paper first analyzes the design process and shortcomings of the traditional CAD system. The concept and function requirements of variable design are put forward. Then, the design problems of whole process change, multi-type change design and multiple design changes are discussed respectively.