产品选型设计中的模糊推理方法

Approach of Fuzzy Reasoning on Type Selection in Product Design

基于模糊理论,提出了在产品概念设计阶段进行选型的方法。该方法的提出基于以下认识:一方面,任何一个产品超类都可划分为多个子类,每个子类都具有区别于其他子类的固有特征。为此,可为每一子类的产品建立一个标准模型;另一方面,产品的设计问题通常是由一组以技术参数表达的设计要求来描述的。那么,若能把设计问题映射到某个标准模型,则该标准模型所代表的结构类型就是问题的解。实现这种映射的方法就是模糊模型识别。该方法可以作为一种推理策略使用在设计型专家系统对相关问题的求解中。

Using the fuzzy technology, to select type of product in conceptual design, a method was proposed,this method is based on following cognition： the superclass of product is divided into several sub classes and a standard model to be set up for each of the sub classes, according to fuzzy recognition technology, the type selection of product can be mapped with a standard model, so, the solution is the structure represented by the standard model. This method can be used in other expert systems.