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中文摘要：
在市场经济条件下，科学合理地确定物资储备是企业物资管理的重要内容。以某车身厂的冲压车间及生产库房为例，建立了库存储备定额优化模型。该模型考虑了机器加工时的换模具时间，以最小化库存成本为目标，一定的供应下游生产能力和库存平均占用资金为约束。运用遗传算法求得了模型中库存定额的优化值，从而帮助企业制定出更加合理的短周期生产计划。
英文摘要：
The scientific and reasonable determination of material reserve is one of the important contents of the enterprise inventory management under the market economy. Taking body pressing workshops and production warehouse of the automobile body factory for example, the optimization model of the storage ration is advanced. Considering set - up time of production, it is to minimize the inventory cost and is constrained by the certain supply capacity for downstream production line and the average occupancy fund of inventory. Then with genetic algorithm the optimal storage ration is obtained, thus helping the enterprise make more reasonable short - period plan.
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