关键词: 车辆修理, 集中化, 双层规划, 布局

Abstract: Focusing on the phenomenon that the maintenance workload in railway system is decreasing and that each maintenance center has surplus capacity, this paper proposes a method of the layout centralization for railway vehicle maintenance. First of all, it analyzes connotation of layout centralization for railway vehicle maintenance, proposes building thinking of the bi-level programming optimization model for the layout centralization for vehicle maintenance. Secondly, an upper model is established with the target of minimizing the total cost of reconstruction cost, operation cost and transport cost of maintenance center, the lower model is established with the target of minimizing the transport cost, and according to iterative thinking, designs double iterative optimization algorithm based on the improved ant colony algorithm to solve the bi-level programming model. Finally, the paper designs a case about it with solving the effectiveness of the model and the optimization algorithm.

Key words: vehicle maintenance, centralization, bi-level programming, layout