Title
Production and inventory management under multiple resource constraints
Abstract
In this paper we present a model and solution methodology for production and inventory management problems that involve multiple resource constraints. The model formulation is quite general, allowing organizations to handle a variety of multi-item decisions such as determining order quantities, production batch sizes, number of production runs, or cycle times. Resource constraints become necessary to handle interaction among the multiple items. Common types of resource constraints include limits on raw materials, machine capacity, workforce capacity, inventory investment, storage space, or the total number of orders placed. For example, in a production environment, there may be limited workforce capacity and limits on machine capacities for manufacturing various product families. In a purchasing environment where a firm has multiple suppliers, there are often constraints for each supplier, such as the total order from each supplier cannot exceed the volume of the truck. We present efficient algorithms for solving both continuous and integer variable versions of the resource constrained production and inventory management model. The algorithms require the solution of a series of two types of subproblems: one is a nonlinear knapsack problem and the other is a nonlinear problem where the only constraints are lower and upper bounds on the variables. Computational testing of the algorithms is reported and indicates that they are effective for solving large-scale problems.
Year
DOI
Venue
2006
10.1016/j.mcm.2005.12.009
Mathematical and Computer Modelling
Keywords
Field
DocType
model formulation,machine capacity,production environment,multiple resource constraint,limited workforce capacity,integer programming,inventory management problem,inventory management model,nonlinear optimization,resource constraint,production batch size,production and inventory management,inventory investment,total order,raw materials,cycle time,knapsack problem
Production manager,Resource management,Mathematical optimization,Nonlinear programming,Operations research,Inventory control,Integer programming,Inventory investment,Knapsack problem,Mathematics,Constrained optimization
Journal
Volume
Issue
ISSN
44
1-2
Mathematical and Computer Modelling
Citations 
PageRank 
References 
4
0.40
4
Authors
4
Name
Order
Citations
PageRank
Kurt M. Bretthauer130023.24
Bala Shetty227429.50
Siddhartha Syam3493.61
Robert J. Vokurka412113.23