In a network of subassembly lines, balance becomes more difficult to achieve as it requires that all subassembly lines be synchronized to produce at the same rate. We show how to adapt the ''bucket brigade'' protocol of work-sharing so that balance emerges spontaneously. 1. In-tree assembly networks Consider a network of subassembly lines such as shown in… (More)
When a logistics system is " self-organizing " it can function without significant intervention by managers, engineers, or software control. The social insects, such as ants or bees, provide models of self-organizing logistics systems that may be profitably emulated. We illustrate some of these ideas for the problem of balancing assembly lines.
A ssigning products to and retrieving them from proper storage locations are crucial decisions in minimizing the operating cost of a unit-load warehouse. The problem becomes intractable when the warehouse faces variable supply and uncertain demand in a multiperiod setting. We assume a factor-based demand model in which demand for each product in each period… (More)
Workers in a bucket brigade production system perform unproductive travel when they walk to get more work from their colleagues. We introduce a new design of bucket brigades to reduce unproductive travel. Under the new design, each worker works on one side of an aisle when he proceeds in one direction and works on the other side when he proceeds in the… (More)
A two-item two-warehouse periodic review inventory model with transshipment. Abstract We study a two-item two-warehouse periodic review inventory model that allows transshipment between warehouses and emergency orders. The model helps to determine two decisions: (i) the order up to levels for the two items at the two warehouses, and (ii) whether to accept a… (More)