This paper deals with the problem of optimally planning the production, inventory and distribution of products transported via multi-compartment vehicles. It assumes that facilities in the distribution network have preservation-storing devices to inventory products on-site. Production activities may be performed on any time period of the planning horizon. Due to problem complexity, a two-stage solution strategy that first generates a set of multi-period distribution routes through a column generation approach is proposed. The routes are used for feeding the MILP formulation of the problem. Several valid inequalities are proposed for expediting the MILP resolution. The aim is to maximize the profit obtained by the company that fabricates and distributes the products. This profit is computed as the total income from sales minus the sum of all costs incurred along the planning horizon. The effectiveness of the two-stage solution strategy is tested on an extensive set of realistic instances.

本文讨论了对通过多厢车运输的产品的生产，库存和分配进行最佳规划的问题。假定分销网络中的设施具有保存存储设备以在现场对产品进行库存。生产活动可以在计划范围的任何时间段进行。由于问题的复杂性，提出了一种两阶段的解决方案策略，该策略首先通过列生成方法生成一组多周期分布路由。这些路线用于解决问题的MILP公式。为加快MILP分辨率，提出了几个有效的不等式。目的是使制造和分销产品的公司获得的利润最大化。该利润是根据销售总收入减去沿计划范围产生的所有成本之和计算得出的。两阶段解决方案策略的有效性已在大量实际实例中进行了测试。