基于脆弱性分析的复杂产品生产线工艺路线优化

摘要

Complex process routes were contained in the manufacturing processes of complex products which possessed numerous equipment,and there was a high vulnerability with the produc-tion line of complex products.A directed weighted network model was constructed via applying the complex network theory.The topology characteristics of the production line net were described. Analysis results show that the uneven distribution of processes can lead to the vulnerability of the pro-duction line.An optimization model was proposed based on the deviation function of the process dis-tribution.The feasibility and effectiveness in balancing the processes distribution by optimizing the process routes of the model presented was verified by a case of an aero-engine casing production line operation.The model can optimize the process routes.%复杂产品的制造加工具有工艺路线复杂、制造工序众多的特点，产品生产线往往具有高的脆弱性。应用复杂网络理论建立了复杂产品的生产线网络模型，并通过对复杂产品生产线网络模型特点进行分析，揭示了工序在生产线网络中分布的不均衡性会导致生产线脆弱的本质，进而建立了工序分布偏差函数，构建了复杂产品生产线的网络优化模型，通过优化工艺路线提高了工序分布的均衡性。以某航空发动机零部件生产线为例验证了方法的可行性和有效性。