The Proposal of Demand Estimation of Repairable Items for the Weapon Systems During the Initial Support Period: F-16 Case Study

Yıl 2012, Cilt: 18 Sayı: 2, 145 - 153, 01.02.2012

Bahtiyar Eren Serpil Erol

Öz

Every country that has military systems such as aircraft, radar, warship or tank has to meet the operational needs of those military systems in order to keep them ready for military operations. Logistics support needs are defined basically either before or after procurement. If they are defined before procurement, they are called "initial support requirement", otherwise called "sustainment support requirement". Due to the fact that new system will be added into the Turkish military inventory, it is focused on the initial support requirement phase. In addition to that, it is focused on repairable items since most of the material acquisition cost within the initial support budget is allocated to repairable items. In this study, within the scope of initial support requirements,the method that produces much better results in terms of quantity and cost perspective than the ones used in Turkey and USA is established and demonstrated by using real data set of F-16.

Anahtar Kelimeler

Initial support requirement, Repairable item, Inventory, Logistics, Requirement computation.

İlk İdame İşletme Hesaplamasındaki Tamirlik Malzemelere Yönelik Talep Miktarının Belirlenmesine İlişkin Model Önerisi: F-16 Veri Seti ile Uygulama

Öz

Bünyesinde uçak, radar, gemi, tank v.b silah sistemlerini bulunduran her ülke, silah sistemlerini faal halde tutmak amacıyla harekât ihtiyaçlarını karşılamak zorundadır. Harekât ihtiyaçları silah sistemleri envantere girmeden önce ya da envantere girdikten sonra belirlenir. Girmeden önce belirlendiğinde ilk idame ihtiyaçları, girdikten sonra ise idame işletme ihtiyaçları olarak adlandırılır. Bu çalışmada, yakın gelecekte Türkiye'ninenvanterine yeni uçak gireceğinden dolayı ilk idame işletme safhasına ve ilk idame için ayrılan malzeme bütçesinin büyük çoğunluğunu tamirlik malzemeler oluşturduğu için de tamirlik malzemelere yoğunlaşılmıştır. İlk idame ihtiyaçlarının belirlenmesi kapsamında, Türkiye ve ABD'de uygulanan algoritmalara göre daha iyi sonuç veren bir algoritma geliştirilmiş ve geliştirilen bu algoritmanın etkinliği miktar ve maliyet bazında F-16uçağına ait gerçek bir veri setinde uygulanarak gösterilmiştir.

Anahtar Kelimeler

İlk idame işletme, Tamirlik malzeme, Envaner, İhtiyaç hesaplama.

Kaynakça

• AFMCI, 2007. Air Force Military Command Instruction.
• AECMA SPEC200M, 2000. Association Européenne des Constructeurs de Matériel Aérospatial Specification 2000M Issue 3.0.
• Anderson, B. 2009. “LOGM-570 Principles of Inventory Management” Ders Notları. Air Force Institute of Technology (AFIT).
• ATA SPEC2000, 2002. Air Transportation Association e-Business for Material Management SPEC2000.
• Daniel, V. and Srivastava, R. 1997. Repairable Inventory Theory: Models and applications. European Journal of Operational Research 102, 1-20.
• Fortuin, L. 1984. Initial supply and re-order level of new service parts. European Journal of Operational Research. 15 (3), 310-319.
• Gümüş, A.T. and Güneri, A.F. 2007. Multiechelon inventory management in supply chains with uncertain demand and lead times: Literature review from an operational research perspective. J.Engineering Manufacture. Vol. 221 Part B, 1553-1570.
• Hillstad, R.J. 1982. Dyna-METRIC: Dynamic Multi-Echelon Technique for Recoverable Item Control. R-2785-AF. RAND Corporation.
• İDS, 1997. Hv.K.K.lığı İDS Kullanıcı El Kitabı. Hv.K.K.lığı Basımevi.
• JSF COST, 2000. Joint Strike Fighter Cost and Operational Performance Trade Process: Concetp to Baseline.
• MIL-HDBK-502, 1997. Military Handbook Acquisition Logistics.
• MIL-STD-1388-1A, 1983. Military Standard Logistics Support Analysis.
• MIL-STD-1388-2B, 1991. Military Standard DOD Requirements for A Logistic Support Analysis Record
• Muckstadt, J.A. 1973. A model for a multiitem, multi-echelon, multi-indenture (MODMETRIC) inventory system. Management Science 20 (4), 472-481.
• Muckstadt, J.A. 2005. Analysis and Algorithms for Service Parts Supply Chains. Springer, New York-ABD.
• NATO, 2007. Lojistik El Kitabı.
• Paterson, C., Kiesmuller, G., Teunter, K. 2011. Inventory Models with Lateral Transshipments: A Review. European Journal of Operational Research, Volume 210, 125–136.
• Sherbrooke, C. 1968. METRIC: A MultiEchelon Technique for Recoverable Item Control. Operations Research. 16, 122-141.
• Sherbrooke, C. 1986. VARI-METRIC: Improved Approximations for Multi-Indenture, Multi-Echelon Availability Models. Operations Research. (34), 311-319.
• Sherbrooke, C. 1992. Optimal Inventory Modelling of Systems. John Wiley&Sons,Inc. New York.
• Slay, F.M., Bachman, T.C., Kline, R, C., O’Malley, T.J., Eichorn, F.L., King, R.M. 1996. Optimizing Spares Support: The Aircraft Sustainability Model (ASM). AF501MR1. Logistics Management Institute, Virginia-ABD.
• Wong, H., Houtum, G.J., Oudheusden, D.V. 2006. Multi-item spare parts systems with lateral transshipments and waiting time constraints. European Journal of Operational Research. (171), 1071–1093.