在装配制造供应链中,为了避免供应中断的风险,制造商往往向多个供应商采购相同的零部件,即采用多源供货方式。近年来,随着越来越多的装配制造企业采用准时制(Just in time,JIT)方式进行生产运作,Supply-Hub模式作为一种有效支持JIT运作...在装配制造供应链中,为了避免供应中断的风险,制造商往往向多个供应商采购相同的零部件,即采用多源供货方式。近年来,随着越来越多的装配制造企业采用准时制(Just in time,JIT)方式进行生产运作,Supply-Hub模式作为一种有效支持JIT运作的供应物流运作模式,在装配制造供应链中也逐渐得到了广泛应用。Supply-Hub不仅是供应链中零部件物流的枢纽节点,更重要的是,它还起到信息集中平台的作用,掌握各方供应商的库存和补货信息,这使供应相同零件的供应商之间实现横向协同运作成为可能。目前,虽然已有较多关于多源供货问题的研究文献,但仍还没有文献涉及供应同种零件的供应商之间横向协同的问题。基于Supply-Hub模式,通过数学建模分析,研究一种两个供应相同零件的供应商利用Supply-Hub,在横向共享库存信息条件下的协同补货策略,并通过算例对该协同补货策略的有效性进行验证分析。研究结果表明,运用横向协同补货策略,在不降低系统服务水平的情况下,可以明显降低供应链系统的总成本。展开更多
A replenishment decision-making model for supply-hub is firstly established from the angle of supplier, and optimal replenishment decision of the supplier is analyzed. Then, inventory optimization model for supply-hub...A replenishment decision-making model for supply-hub is firstly established from the angle of supplier, and optimal replenishment decision of the supplier is analyzed. Then, inventory optimization model for supply-hub is formulated from the angle of the manufacturer, and the optimization algorithm for obtaining optimal inventory levels is given. The result shows that liability period decides the share of the inventory cost between two sides in supply chain. With the increase of liability period, the service level has been quickly reduced even though the manufacturer's cost has been cut down by transferring the inventory cost to the supplier. As to the safety inventory, if the lower bound of components safety inventory increases, the supplier's cost will rise up more slowly than the liability period does, while the service levels increases as the safety inventory's lower bound is raised.展开更多
文摘在装配制造供应链中,为了避免供应中断的风险,制造商往往向多个供应商采购相同的零部件,即采用多源供货方式。近年来,随着越来越多的装配制造企业采用准时制(Just in time,JIT)方式进行生产运作,Supply-Hub模式作为一种有效支持JIT运作的供应物流运作模式,在装配制造供应链中也逐渐得到了广泛应用。Supply-Hub不仅是供应链中零部件物流的枢纽节点,更重要的是,它还起到信息集中平台的作用,掌握各方供应商的库存和补货信息,这使供应相同零件的供应商之间实现横向协同运作成为可能。目前,虽然已有较多关于多源供货问题的研究文献,但仍还没有文献涉及供应同种零件的供应商之间横向协同的问题。基于Supply-Hub模式,通过数学建模分析,研究一种两个供应相同零件的供应商利用Supply-Hub,在横向共享库存信息条件下的协同补货策略,并通过算例对该协同补货策略的有效性进行验证分析。研究结果表明,运用横向协同补货策略,在不降低系统服务水平的情况下,可以明显降低供应链系统的总成本。
基金Projects(71102174,70971036) supported by the National Natural Science Foundation of ChinaProject(9123028) supported by the Beijing Natural Science Foundation,China+3 种基金Project(20111101120019) supported by the Specialized Research Fund for Doctoral Program of Higher Education of ChinaProject(11JGC106) supported by the Beijing Philosophy&Social Science Foundation of ChinaProjects(NCET-10-0048,NCET-10-0043) supported by the Program for New Century Excellent Talents in Universities of ChinaProject(2010YC1307) supported by the Excellent Young Teacher in Beijing Institute of Technology of China
文摘A replenishment decision-making model for supply-hub is firstly established from the angle of supplier, and optimal replenishment decision of the supplier is analyzed. Then, inventory optimization model for supply-hub is formulated from the angle of the manufacturer, and the optimization algorithm for obtaining optimal inventory levels is given. The result shows that liability period decides the share of the inventory cost between two sides in supply chain. With the increase of liability period, the service level has been quickly reduced even though the manufacturer's cost has been cut down by transferring the inventory cost to the supplier. As to the safety inventory, if the lower bound of components safety inventory increases, the supplier's cost will rise up more slowly than the liability period does, while the service levels increases as the safety inventory's lower bound is raised.
