考虑变更传播影响的产品模块分类方法

针对产品变更过程中遇到产品结构复杂及零部件间关联程度强的问题,基于设计结构矩阵,通过模糊聚类分析法,对产品变更模块分层级研究变更传播的特点.首先,将产品零部件按照不同要求划分为不同的模块,将模块作为基本元素,根据模块间的变更依赖关系建立含权重的设计结构矩阵;然后,利用模糊聚类分析法对变更模块聚类,对聚类结果分层级,分析各层级之间的变更传播特点,从而降低模块变更的复杂性,提高模块变更的速度.以某型罐式半挂车为例,对该方法的可行性和合理性进行验证.实验结果表明:该方法能够有效地降低车辆变更复杂性,并能提高车辆工程变更速度.

Classification Method of Product Modules Considering Influence of Change Propagation

Aiming at the complex product structure and strong correlation between parts in the process of product change, the characteristics of change propagation of product change modules were studied based on design structure matrix using the fuzzy clustering analysis method. First, product parts were divided into different modules according to different requirements. Taking the module as a basic element, the design structure matrix with weights was established according to the change dependence between modules. Then, the fuzzy cluster analysis method was used to cluster the changed modules and stratify the clustering results. The characteristics of change propagation between different levels were analyzed so as to reduce the complexity of module change and improve the speed of module change. The feasibility and rationality of the proposed method were verified by a kind of tank semi-trailer. The experimental results show that the proposed method can effectively reduce the complexity of vehicle change and improve the speed of vehicle engineering change.