Equipment performance degradation often leads to increased production energy consumption and pollu-tant emissions,while the existing preventive maintenance strategy research rarely considers environmental protection factors.To reduce the impact of production activities on the environment,a multi-level opportunistic maintenance strategy for production systems considering energy conservation and emission reduction is proposed.The relationship between the cumulative service age of the equipment and the production energy consumption and pollutant emis-sions is constructed.The production stop is taken as an external maintenance opportunity.When the planned main-tenance point of the equipment falls into the external opportunity interval,the opportunity maintenance is taken;otherwise the shutdown maintenance is taken.With the lowest comprehensive cost rate in the life cycle of the equip-ment as the goal,the optimal preventive maintenance times of each equipment are first optimized.On this basis,considering the maintenance correlation between equipment,the related equipment that falls into the opportunity in-terval in the group is repaired together,and the equipment that fails to use the production stoppage for maintenance is repaired by shutdown maintenance.The influence of shutdown opportunity on the remaining equipment is consid-ered.The optimization objective is to minimize the energy consumption cost,emission cost and equipment mainte-nance cost of the system in a certain period,and the opportunity maintenance threshold is used as the decision vari-able.Finally,the algorithm is designed and the effectiveness of the model is verified by an example.
关键词
节能减排/机会维修/预防性维修/生产能耗/维修相关性
Key words
energy saving and emission reduction/opportunity maintenance/preventive maintenance/production energy consumption/maintenance relevance
维普
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