Evolution of product module based on complex network brittleness theory

Aiming at the module organization structure optimization of modular product manufacturing enterprise, a module evolution method was proposed to improve the production stability. Product module network model was established by using complex network theory to analyze the topological feature of network deeply. On the basis of analyzing vulnerability and robustness of the network, the product module network's brittleness risk estimate function was established by considering factors such as arrival rate, completion rate, and use rate to evaluate the uncertainty of network' stability. According to brittleness risk source, module evolution strategy was proposed to improve network's stability. To guide the network change caused by module evolution and to achieve the purpose of dynamic control of product module network's vulnerability, the dynamic evolution model was built. A series of special vehicles was introduced to verify the presented method, and the results confirmed the effectiveness and rationality of the method.