关键词: 过程管理, 产品设计, 知识集成, 过程模型, 设计结构矩阵, 敏度

Abstract: Aiming at such shortcomings as over-reliance on experience, incapable of quantitative control, low design efficiency in the development process of products, a process management approach for variant design was proposed. Based on the references of the node properties in product structure model, the general model of design knowledge was established. According to the design knowledge, the sensitivity among the parameters was calculated, parameter associations were determined, and then a design structure matrix(DSM) was obtained. Based on traditional DSM optimization methods, a reengineering and estimation method of the process activities was presented under the environment of knowledge integration. And process design planning with appropriate task granularity was obtained. Finally, the general variant design system supporting the shock absorber design process modeling was developed,. Compared with traditional methods, the approach presented was less dependent on experience with higher automation degree and was helpful to improve the design concurrency.

Key words: process management, product design, knowledge integration, process model, design structure matrix, sensitivity