Optimizing multi-stage production with constant lot size and varying numbers of batches

Optimizing Multi-Stage Production with Constant Lot Size and Varying Numbers of Batches

The model presented in this paper assumes that a uniform lot size is produced through a series of manufacturing stages, with a single set-up mud without interruption at each stage. Transportation of partial lots, called batches, is allowed between stages after the whole batch is completed. The batch sizes must he equal at any particular stage, but the optimal number of equal-sized batches may d...

Combination of Genetic Algorithm With Lagrange Multipliers For Lot-Size Determination in Capacity Constrained Multi-Period, Multi-Product and Multi-Stage Problems

 Abstract : In this paper a meta-heuristic approach has been presented to solve lot-size determination problems in a complex multi-stage production planning problems with production capacity constraint. This type of problems has multiple products with sequential production processes which are manufactured in different periods to meet customer’s demand. By determining the decision variables, mac...

Dewey Library Lot Size Determination in Multi-stage Assembly Systems

Optimization of preventive maintenance schedule and production lot size

In this research, a developed mathematical model is proposed to optimize the preventive maintenance age and lot size for a single-unit production system producing a single item. The system is assumed to start in an in-control state producing items of acceptable quality and then after a period of production time the system may shift to an out-of-control state producing non-conforming items. The ...

An integrated vendor–buyer model with stochastic demand, lot-size dependent lead-time and learning in production

In this article, an imperfect vendor–buyer inventory system with stochastic demand, process quality control and learning in production is investigated. It is assumed that there are learning in production and investment for process quality improvement at the vendor’s end, and lot-size dependent lead-time at the buyer’s end. The lead-time for the first batch and those for the rest of the batches ...