An analytical model of the replacement costs of aircraft engine life-limited parts
Само за регистроване кориснике
2021
Чланак у часопису (Објављена верзија)
Метаподаци
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Purpose The purpose of this paper is to present novel recursive expressions for modelling the replacement costs of aircraft engine life-limited parts during shop visits to assist engine operators in both evaluating their decisions regarding the applied life-limited parts management strategies and tracking the replacement costs consistently throughout the life of the engine. Design/methodology/approach The replacement costs of aircraft engine life-limited parts are modelled analytically in this research, which strives to quantify the costs of used and unused lives of the replaced parts, incurred during engine shop visit events. Inputs for this model include the list price of life-limited parts, the replacement decisions made on all previous shop visits and the number of cycles the engine has operated at different thrust ratings on all previous operating intervals. Findings The average annual escalation rate of life-limited parts list prices was shown to range from 5% to 7%. The presente...d model is not only suitable for calculating the costs of used and unused lives of life-limited parts during past engine shop visit events but also for application in the life-limited parts replacement cost forecasting and optimisation models. Originality/value Uniquely derived recursive expressions represent the final result of the developed model which, to the authors' knowledge, had not been studied elsewhere in the academic literature. The analysis of aircraft engine life-limited part list prices carried out to account for the average annual escalation rate enables the prediction of replacement costs during subsequent shop visits.
Кључне речи:
Shop visit / Replacement decisions / Replacement cost / Life-limited parts / Aircraft engineИзвор:
Aircraft Engineering and Aerospace Technology, 2021, 93, 5, 776-782Издавач:
- Emerald Group Publishing Ltd, Bingley
Финансирање / пројекти:
- Систем управљања заштитом животне средине у оквирима емисије штетних гасова и ризика од удеса транспортних ваздухоплова у Републици Србији (RS-MESTD-Technological Development (TD or TR)-36001)
DOI: 10.1108/AEAT-12-2020-0297
ISSN: 1748-8842
WoS: 000660284000001
Scopus: 2-s2.0-85107736209
Колекције
Институција/група
Mašinski fakultetTY - JOUR AU - Stojiljković, Branimir AU - Vasov, Ljubiša AU - Cokorilo, Olja AU - Vorotović, Goran PY - 2021 UR - https://machinery.mas.bg.ac.rs/handle/123456789/3505 AB - Purpose The purpose of this paper is to present novel recursive expressions for modelling the replacement costs of aircraft engine life-limited parts during shop visits to assist engine operators in both evaluating their decisions regarding the applied life-limited parts management strategies and tracking the replacement costs consistently throughout the life of the engine. Design/methodology/approach The replacement costs of aircraft engine life-limited parts are modelled analytically in this research, which strives to quantify the costs of used and unused lives of the replaced parts, incurred during engine shop visit events. Inputs for this model include the list price of life-limited parts, the replacement decisions made on all previous shop visits and the number of cycles the engine has operated at different thrust ratings on all previous operating intervals. Findings The average annual escalation rate of life-limited parts list prices was shown to range from 5% to 7%. The presented model is not only suitable for calculating the costs of used and unused lives of life-limited parts during past engine shop visit events but also for application in the life-limited parts replacement cost forecasting and optimisation models. Originality/value Uniquely derived recursive expressions represent the final result of the developed model which, to the authors' knowledge, had not been studied elsewhere in the academic literature. The analysis of aircraft engine life-limited part list prices carried out to account for the average annual escalation rate enables the prediction of replacement costs during subsequent shop visits. PB - Emerald Group Publishing Ltd, Bingley T2 - Aircraft Engineering and Aerospace Technology T1 - An analytical model of the replacement costs of aircraft engine life-limited parts EP - 782 IS - 5 SP - 776 VL - 93 DO - 10.1108/AEAT-12-2020-0297 ER -
@article{ author = "Stojiljković, Branimir and Vasov, Ljubiša and Cokorilo, Olja and Vorotović, Goran", year = "2021", abstract = "Purpose The purpose of this paper is to present novel recursive expressions for modelling the replacement costs of aircraft engine life-limited parts during shop visits to assist engine operators in both evaluating their decisions regarding the applied life-limited parts management strategies and tracking the replacement costs consistently throughout the life of the engine. Design/methodology/approach The replacement costs of aircraft engine life-limited parts are modelled analytically in this research, which strives to quantify the costs of used and unused lives of the replaced parts, incurred during engine shop visit events. Inputs for this model include the list price of life-limited parts, the replacement decisions made on all previous shop visits and the number of cycles the engine has operated at different thrust ratings on all previous operating intervals. Findings The average annual escalation rate of life-limited parts list prices was shown to range from 5% to 7%. The presented model is not only suitable for calculating the costs of used and unused lives of life-limited parts during past engine shop visit events but also for application in the life-limited parts replacement cost forecasting and optimisation models. Originality/value Uniquely derived recursive expressions represent the final result of the developed model which, to the authors' knowledge, had not been studied elsewhere in the academic literature. The analysis of aircraft engine life-limited part list prices carried out to account for the average annual escalation rate enables the prediction of replacement costs during subsequent shop visits.", publisher = "Emerald Group Publishing Ltd, Bingley", journal = "Aircraft Engineering and Aerospace Technology", title = "An analytical model of the replacement costs of aircraft engine life-limited parts", pages = "782-776", number = "5", volume = "93", doi = "10.1108/AEAT-12-2020-0297" }
Stojiljković, B., Vasov, L., Cokorilo, O.,& Vorotović, G.. (2021). An analytical model of the replacement costs of aircraft engine life-limited parts. in Aircraft Engineering and Aerospace Technology Emerald Group Publishing Ltd, Bingley., 93(5), 776-782. https://doi.org/10.1108/AEAT-12-2020-0297
Stojiljković B, Vasov L, Cokorilo O, Vorotović G. An analytical model of the replacement costs of aircraft engine life-limited parts. in Aircraft Engineering and Aerospace Technology. 2021;93(5):776-782. doi:10.1108/AEAT-12-2020-0297 .
Stojiljković, Branimir, Vasov, Ljubiša, Cokorilo, Olja, Vorotović, Goran, "An analytical model of the replacement costs of aircraft engine life-limited parts" in Aircraft Engineering and Aerospace Technology, 93, no. 5 (2021):776-782, https://doi.org/10.1108/AEAT-12-2020-0297 . .