Analyzing the effects of scrap, rework, random machine breakdowns and partial backordering on the economic production quantity model using Taguchi method

SUBULAN K., TAŞAN A. S.

41st International Conference on Computers and Industrial Engineering 2011, Los Angeles, CA, Amerika Birleşik Devletleri, 23 - 25 Ekim 2011, ss.297-302 identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası:
  • Basıldığı Şehir: Los Angeles, CA
  • Basıldığı Ülke: Amerika Birleşik Devletleri
  • Sayfa Sayıları: ss.297-302
  • Anahtar Kelimeler: Economic production quantity, Machine breakdowns, Rework, Taguchi method
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

There are several production-inventory studies which consider economic production quantity (EPQ) models with scrap, rework and random machine failures in the literature. However, the effects of these critical factors on the total annual inventory cost haven't been evaluated in an aggregated manner. In this paper, the major factors that affects the total annual inventory cost such as the characteristics of the machine breakdowns, defective item rates, rework rates, scrap rates and backordering rate are considered. The effects of these major factors are examined with the help of experimental design and Taguchi engineering. Experimental results obtained from the numerical example are evaluated and effects of related factors are examined through Taguchi's signal/noise ratios, analysis of means graphs, and interaction graphs. Experimental results yield that except the scrap rate, all factors have cause a significant variation on the total annual production-inventory cost.