Production Planning for Parts Reuse by using Reusability Models

Abstract

This paper describes a production planning method addressing the issue that the timings and quantities of returned products and reusable components included in them are unknown. This method first predicts the quantities of returned products and reusable components at each time period by using reusability models. Using the predicted results, the method performs production planning based on Material Requirement Planning (MRP). This method enables us to plan at each time period : the quantity of the products to be disassembled; the quantity of the reusable components to be used; and the quantity of the new components to be produced. The simulation is carried out to show the effectiveness of the method.