关键词: 模块化设计, 维修, 多目标优化, 混合多目标蛙跳算法

Abstract: To overcome the shortage that single maintenance department participated in existing maintenance activities, the driven factors and strategy selection of maintenance stage were introduced in design stage of complex equipment, and modular design method of complex equipment oriented to maintenance was proposed. From the perspectives of maintenance cost, maintenance complexity and maintenance efficiency, the criteria for modular design were discussed, and specific calculation methods of maintenance properties were obtained. The modular design optimization model oriented to maintenance was constructed by considering constraint conditions. The model was optimized and solved by using hybrid multi-objective shuffled frog leaping algorithm which combined shuffled frog leaping algorithm with bacteria optimization, therefore a series of Pareto optimal solution which represented modular design schemes were obtained. The final modular design scheme was gained by using information entropy theory based Pareto optimized method. GMC precise 5-axis machining center in Shenyang machine tool factory was taken as an example to verify the effectiveness and feasibility of proposed method.

Key words: modular design, maintenance, multi-objective optimization, hybrid multi-objective shuffled frog leaping algorithm, Pareto solution sets