Fixed-charge production problems

Provides examples of production problems in which the production is an integer value and the factories need to rent or acquire tools to produce the products.

Fixed-charge problems resemble other production problems but differ in two respects: the production is an integer value (for example, a factory must produce bikes or toys), and the factories need to rent (or acquire) some tools to produce some of the products.

A fixed-charge manufacturing model

A company manufactures shirts, shorts, and pants. Each product requires a number of hours of labor and a certain amount of cloth, and the company has a limited capacity of both. In addition, all of these products can be manufactured only by renting an appropriate machine. The profit on each product (excluding the cost of renting the equipment) is known. The company would like to maximize its profit. This is a simple model to introduce fixed-charge production.

To access this example, click: examples/opl/fixed.

See Fixed-charge problems in the Language User’s Manual.

A fixed-charge production model

The fixed-charge production model upgrades the inside/outside production model to include a fixed charge for the products.

To access this example, click: examples/opl/prodmilp.

See also Mixed integer-linear programming in the Language User’s Manual.