Abstract: Aiming at the evolution control problem of modular product family, a network evaluation approach oriented to complex degree of modular product family was proposed. By abstracting modules as nodes, relations as edges, the module relation network was formed. Based on this network, the product family was described from three layers of module, relation and system, and a five-indicator evaluation system was formed which included module information quantity, module information coupling ratio, module important degree, information strength for relation, and system information structure entropy. Based on engineering meaning of these quantitative indicators, designers could realize the assessment for product complexity and monitoring its evolution state. The feasibility of this approach was verified by using a shovel module system of wheel loader as an example.

Key words: article characteristic, module, relation network, assessing, product family, product design

摘要： 针对模块化产品族的演化控制问题，提出面向模块化产品族复杂程度的网络化评价方法。将产品族中的模块描述为节点，模块间的关系描述为边，并将模块化产品族抽象形成产品系统的模块关系网络。借助模块关系网络，从模块、关系和系统三个层次对产品族进行量化描述，形成由模块信息量、信息耦合比、关重度、关系强度和系统信息结构熵5个量化指标组成的评价体系。基于量化指标的工程意义，设计人员可以对产品族系统进行复杂程度评估和演化状态监控。以某轮式装载机铲斗的模块化系统为例，验证了所提方法的可行性。

关键词: 事物特性, 模块, 关系网络, 评价, 产品族, 产品设计