延迟制造下基于Petri网的矿山供需链仿真协调优化
投稿时间:2017-12-27  修订日期:2018-12-12  点此下载全文
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作者单位E-mail
卢才武 西安建筑科技大学管理学院 lcw1114238783@163.com 
马青青 西安建筑科技大学管理学院 1227191629@qq.com 
基金项目:国家自然科学基金面上项目;陕西省社会科学基金项目
中文摘要:为了解决矿山供需链中终极客户对产品的差异化需求,提高矿料及产品流动过程中的效率,实现大宗产品的最优化流动策略。在综合分析矿山供需链整体生产运作模式后,采用petri网技术对矿山四级供需链进行动态建模,并用Flexsim软件对模型仿真优化分析。通过仿真发现采用延迟生产策略可以使设备利用率保持在55%~85%的有效的生产运营范围内,不同库存平均存放时间降低了35%~70%,即可让链条下游企业库存水平接近零库存。由此表明矿山供需链的运作效率在很大程度上受到延迟生产制造策略的影响,也使得矿山供需链的运作形式由基于需求预测的标准化生产向响应消费者产品需求的差异化生产转变。该模型识别和消除了矿山供需链的运作瓶颈,为矿山供需链各节点企业制定合理高效的生产计划,增强链条逆向流动信息的响应能力提供了参考依据。
中文关键词:矿山供需链  Petri网  Flexsim  延迟制造  仿真优化
 
Simulation and optimization of mine supply chains based on petri net under postponed manufacturing
Abstract:In order to solve the demand of differentiated products from the ultimate customers in the supply chain of mines, the efficiency in the flow of mineral materials and products is improved and the optimal flow strategy of bulk products is realized. After comprehensively analyzing the overall production and operation mode of the supply and demand chain in the mine, petri net technology and Flexsim software was respectively used to optimize the simulation of the four-level supply and demand chain of the mine. Through the simulation, it is found that using the delayed production strategy can keep the equipment utilization within 55% -85% of the effective production and operation range. The average storage time of different stocks before and after model optimization is reduced by 35% -70% level close to zero stocks. The result shows that the operation efficiency of mine supply and demand chain is greatly affected by the delayed manufacturing strategy and also makes the operation mode of mine supply and demand chain change from the standardized production based on demand forecast to the differentiated production in response to consumer demand. The model identifies and eliminates the operational bottlenecks in the supply chain and provides a reference for enterprises in a supply chain to formulate a reasonable and efficient production plan and enhance the response ability of the chain reverse flow information.
keywords:mine supply chains  Petri net  Flexsim  postponed manufacturing  simulation optimization
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