Abstract
Customers requirements are mapped into function modules, matching with structure modules and signing the corresponding structure entities. Main structure of product family can be depicted as a directed complex network. Parameters such as node betweenness, edge betweenness and Q function values are calculated through simple-path detecting algorithm, for obtaining distributing curve of Q and clustering dendrogram which we can gain division results from. The results are adjusted and optimized according to the parts usage times and structure entities with sign. As an example, the product family of industry steam turbine is analyzed with this algorithm and some practical results are obtained.
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