A Novel Rolling Horizon Based Solution Framework for Scheduling Airplane Maintenance

Year 2024, , 368 - 381, 29.05.2024

Mehmet Güray Güler

https://doi.org/10.21076/vizyoner.1332082

Abstract

Maintenance, Repair and Overhaul (MRO) activities on aircraft and systems in aviation is a service sector that relies heavily on skilled workforce. The output of MRO activities is basically bringing the system reliability values, which decrease because of the use of aircraft and systems in certain flight times and landing and take-off numbers, to the default levels determined during the design phase. MRO companies are accountable to the civil aviation authorities who directly authorize them to ensure the required levels of reliability of their products. Airline companies request MRO services at the most convenient time and cost. However, the maintenance of an aircraft is a process that can take up to five weeks, includes plenty of jobs some of which may have stochastic durations, and many over-costed qualified technicians spend thousands of man-hours. In addition, each MRO company is involved in the maintenance of several airplanes arriving at different time intervals. In the study such a problem faced by an MRO company is addressed. The company’s aim is to schedule several incoming airplane maintenance projects. A framework that employs an integer programming (IP) model working on a rolling horizon (RH) setting is used.

Keywords

Integer Programming, Rolling Horizon, Scheduling

Supporting Institution

The study is supported by TEYDEB 1507 Project (Project No: 7161160).

Project Number

The study is supported by TEYDEB 1507 Project (Project No: 7161160).

Uçak Bakımının Planlanması İçin Yeni Bir Kayan Ufuk Tabanlı Çözüm Çerçevesi

Abstract

Havacılıkta uçak ve sistemler üzerindeki Bakım, Onarım ve Revizyon (MRO) faaliyetleri, ağırlıklı olarak kalifiye işgücüne dayanan bir hizmet sektörüdür. MRO faaliyetlerinin çıktısı temel olarak uçak ve sistemlerin belirli uçuş saatlerinde ve iniş kalkış sayılarında kullanılması nedeniyle azalan sistem güvenilirlik değerlerinin tasarım aşamasında belirlenen varsayılan seviyelere getirilmesidir. MRO şirketleri, ürünlerinin gerekli güvenilirlik düzeylerini sağlama konusunda kendilerine doğrudan yetki veren sivil havacılık yetkililerine karşı sorumludur. Havayolu şirketleri MRO hizmetlerini en uygun zaman ve maliyetle talep etmektedir. Bununla birlikte, bir uçağın bakımı beş haftaya kadar sürebilen bir süreçtir, bazıları stokastik sürelere sahip olabilen çok sayıda işi içerir ve bakım için birçok kalifiye teknisyen, binlerce adam-saat harcar. Ek olarak, her MRO şirketi, farklı zaman aralıklarında gelen birkaç uçağın bakımıyla ilgilenmektedir. Bu çalışmada bir MRO şirketinin karşılaştığı böyle bir sorunu ele alıyoruz. Şirketin amacı, gelen birkaç uçak bakım projesini planlamaktır. Kayan ufuk (RH) üzerinde çalışan bir tamsayılı programlama (IP) modeli kullanan bir çerçeve sunuyoruz.

Keywords

Tam Sayılı Programlama, Kayan Ufuk, Çizelgeleme

Supporting Institution

The study is supported by TEYDEB 1507 Project (Project No: 7161160).

Project Number

The study is supported by TEYDEB 1507 Project (Project No: 7161160).

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