Goal programming model for production planning in a toothpaste factory

A.D. Adeyeye^I; O.E. Charles-Owaba^II

^IDepartment of Industrial and Production Engineering, University of Ibadan, Ibadan, Nigeria ademola.adeyeye@mail.ui.edu.ng
^IIDepartment of Industrial and Production Engineering, University of Ibadan, Ibadan, Nigeria oeowaba@yahoo.com

ABSTRACT

The GP model was developed for production planning in a toothpaste factory. Two objectives were distinguished: minimization of processing cost, and maximization of the capacity utilization of production facilities. Two priority structures were used to explore the trade-off options. When processing cost minimization was assigned the first priority, the utilizations of Processing Plant 1 and Filling Machine 2 were 20.32% and 0.18% respectively. When capacity utilization was assigned first priority, the processing cost increased by 7.55% but capacity utilization improved. The least utilized facility was Filling Machine 1 with a utilization of 43.85%.

OPSOMMING

Die GP-model is ontwikkel vir die beplanning van produksie van 'n tandepastafabriek. Twee doelwitte is gestel w die beplanning naamlik minimisering van produksiekoste, en maksimering van prosesbesetting. Wanneer minimisering van koste gebruik word as eerste prioriteit is die besettingswaardes van prosesseringaanleg 1 20.32% en van vulmasjien 2 0.18%. Wanneer prosesbesetting gebruik word as eerste prioriteit neem die proseskoste toe met 7.55% en styg die prosesbesetting. Vulmasjien 1 se gevolglike besetting was 43.85%.

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