4 papers · 1 filter
Order allocation, rack allocation and rack sequencing for pickers in a mobile rack environment
Cristiano Arbex Valle, John E Beasley
In this paper we investigate the problem of simultaneously allocating orders and mobile storage racks to static pickers. Here storage racks are allocated to pickers to enable them…
Packing a fixed number of identical circles in a circular container with circular prohibited areas
C. O. Lopez, J. E. Beasley
In this paper we consider the problem of packing a fixed number of identical circles inside the unit circle container, where the packing is complicated by the presence of fixed siz…
Order batching using an approximation for the distance travelled by pickers
Cristiano Arbex Valle, John E Beasley
In this paper we investigate the problem of order batching for picker routing. Our approach is applicable to warehouses (storage areas) arranged in the standard rectangular grid la…
Packing unequal rectangles and squares in a fixed size circular container using formulation space search
C. O. López, J. E. Beasley
In this paper we formulate the problem of packing unequal rectangles/squares into a fixed size circular container as a mixed-integer nonlinear program. Here we pack rectangles so a…