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由于动车组价格昂贵、运行速度快、运行安全要求高,因此,对动车组的检修要求非常严格,需要同时编制动车组的运用计划和检修计划,而动车组是否检修同时受定检里程和定检时间的双重约束。通过研究具有定检时间约束条件下的动车组运用计划编制模型,并经过案例检算,发现定检时间约束进一步加剧了动车组运用计划编制的复杂程度,不仅所需动车组的数量增加,而且检修次数也高于只有定检里程约束下的检修次数。
As EMUs are expensive, fast running and high operational safety requirements, the requirements for EMU overhauls are very strict. At the same time, it is necessary to compile EMU operation plans and overhaul plans. Whether EMUs are overhaul at the same time is subject to fixed inspection mileage Double check the time constraints. By studying the EMU planning model with the fixed inspection time constraint, and through case analysis, it was found that the inspection time constraints further aggravated the complexity of EMU planning, which not only increased the number of EMUs required, but also The number of overhaul is also higher than the number of overhauls under the condition of only fixed-check mileage.