基于Kuipers定性推理方法的概念设计建模与仿真

Modeling and simulation of conceptual design based on Kuipers qualitative reasoning method

概念设计是产品设计过程中最重要的一个阶段,这个阶段的产品信息通常是不精确的、模糊的、不完全的。传统的定量方法无法对其进行建模。使用定性推理方法对其建模仿真,进而对系统的行为进行预测,能为概念设计提供分析、推理和验证方法,能有效提高设计效率。在分析机械产品概念设计特性的基础上,提出使用Kuipers定性推理方法开展概念设计的建模和设计推理并以平面四杆机构为例说明其分析及推理过程,证实了这一方法的有效性。

Conceptual design is the most critical stage of product design. In this stage, the design information is usually not accurate, fuzzy and not complete. With this information, it is difficult to be modeled by conventional quantitative method. By modeling conceptual design with the qualitative reasoning method, predicting the system behaviour can assist design analysis, reasoning and verification, and can improve design efficiency effectively. Based on analyzing the characteristics of mechanical product conceptual design, the work on conceptual design modeling and simulation is presented with Kuipers qualitative reason- ing method, which is followed by a case study of a four-bar linkage to illustrate the whole procedure and also to demonstrate its effectiveness.