YEDEK PARÇA STOK YÖNETİM SİSTEMİ İÇİN LOJİSTİK AĞ OLUŞTURMAK

Öz

Bu makale, belirli uçakların yedek parçaları için lojistik ağ tasarımıyla ilgilidir. Bu makalede, 10 adet hava aracının faaliyet gösterdiği üslere %85 hazır bulunuşluluk performansıyla yedek parça sağlamak için kurulan bir lojistik ağ söz konusudur. Bu yedek parçaların hazır bulunuşluluğu, uçakların çalışması için kritik öneme sahiptir. Bu lojistik destek konsepti, geleneksel envanter ve tedarik zinciri işlevlerini, garantili bir yedek parça hazır bulunuşluluk performansına dönüştürmektedir. Bu uçaklar, X, Y ve Z olmak üzere üç farklı üsse konuşlandırılır. Y ve X'te dört uçak ve Z'de iki uçak olacaktır. Çözüm yaklaşımı için 5 alternatif lojistik ağı belirtilmiştir. Bu tedarik ağı alternatiflerinden dördü tek kademeli ve biri iki kademeli tedarik ağıdır. Daha sonra, bu alternatif lojistik ağları envanter tutma, depo konumu, nakliye ve genel gider maliyetleri dahil olmak üzere maliyetlerine göre karşılaştırılır.

Anahtar Kelimeler

• yedek parça
• envanter yönetimi
• stok yönetimi

A LOGISTICS NETWORK DESIGN PROBLEM FOR A SPARE PART SYSTEM

Abstract

This paper is about logistics network design for spare parts of certain aircrafts. In this paper, the problem is to setup a logistics network for spare parts of ten aircrafts in order to provide spare parts with 85 % availability performance to the bases air vehicle operates. Availability of these spare parts have critical importance for aircrafts to operate properly. This logistics support concept transfers traditional inventory and supply chain functions for a guaranteed level of spare part availability performance. These aircrafts deploy on three different bases, X, Y and Z. There will be four aircrafts in Y and X and two aircrafts in Z. For solution approach, five alternative logistics networks are stated. Four of these supply network alternatives is single echelon and one of them is two-echelon setting. Then, these alternative logistics networks are compared according to their costs including inventory holding, warehouse location, transportation and overhead costs.

Keywords

• Inventory Management
• Spare Part
• Maintenance
• Overhead Cost

Kaynakça

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