基于功能使用、行为相似及制造可行性的可变功能机械系统模块划分研究

Module identification for the adaptable-function mechanical system based on function usage,behavior similarity and manufacturability

可变功能机械系统通常具有功能多、整体结构复杂的特点,适宜于采用模块化方法进行产品设计和设计管理。针对该类产品模块化设计的模块划分研究还相对较少。文中通过对可变功能机械系统各功能使用情况、相应行为的相似程度及构件组合的制造可行性等的分析计算,建立功能构件间的相关度矩阵,然后应用模糊聚类法得到多种模块划分方案,最后借助模块连接复杂度和再设计复杂度建立数学评价模型,对方案进行评估,最终获得最优模块划分方案。通过对家用套装工具箱中的多种工具进行模块化设计,获得一个可用以设计可变功能组合工具的最佳模块划分方案,验证了文中方法的可行性。

The adaptable-function mechanical system is usually characterized with multiple functions and complex overall structure. Therefore,it is feasible to apply the modular design in terms of product design and management. Since currently the research on module identification for such products is rare. In this article,the correlation matrix of functional structures is worked out by means of the analysis and calculation of certain features of the adaptable-function mechanical system,including the usage of each adaptable function,the similarity of the corresponding behavior,as well as the manufacturability of combined functional structures. Then,based on the correlation matrix,the method of fuzzy clustering is applied to work out various module-identification schemes. Finally,the mathematical evaluation model is set up by calculating the module-connection complexity and the redesign complexity,through which the schemes are evaluated and the optimal scheme is obtained. By the modular design of a household toolkit with various tools,the optimal module-identification scheme is identified for adaptable-function combined toolkits,and thus the proposed method has proved feasible.