Optimal production policy for economic production lot-sizing model with preventive maintenance

In this study, we determine the optimal manufacturing quantity for an economic production lot-sizing model with a defective rate and preventive maintenance for a manufacturing machine. We investigate the properties of economic manufacturing quantity to minimize expected costs during the production run when a random defective rate for that product is considered using an in-control condition and an out-of-control condition. If a manufacturing machine produces a proportion of defective items which is larger than the lot tolerance percent defective, then a machine shifts from an in-control condition to an out-of-control condition, and it should have a maintenance service to decrease the possibility that it will produce imperfect-quality products. A research model is developed to determine optimal manufacturing quantity and optimal production time when a defective rate and maintenance service are considered. Numerical examples are given for the applicability of the methodology derived in the paper.

Automated summary

This study focuses on determining the optimal manufacturing quantity for an economic production lot-sizing model with a defective rate and preventive maintenance. The research model developed in this study helps in deciding the optimal production time in different conditions. Numerical examples provided in the study demonstrate the applicability of the methodology derived.