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An integrated assessment of safety and efficiency of aircraft maintenance strategies using agent-based modelling and stochastic Petri nets. / Lee, Juseong; Mitici, Mihaela.

In: Reliability Engineering and System Safety, Vol. 202, 107052, 01.10.2020.

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@article{28b392020d644402b7ae0683e1ee0374,
title = "An integrated assessment of safety and efficiency of aircraft maintenance strategies using agent-based modelling and stochastic Petri nets",
abstract = "Aircraft maintenance is key for safe and efficient aircraft operations. While most studies propose cost-efficient maintenance strategies, the safety and efficiency of these strategies need to be quantified. This paper proposes a formal framework to assess the safety and efficiency of maintenance strategies by means of agent-based modelling, stochastically and dynamically coloured Petri nets, and Monte Carlo simulation. We model an end-to-end aircraft maintenance process, considering several maintenance stakeholders. We apply our framework for aircraft landing gear brakes, and use a Gamma process to model the degradation trends of the brakes. The numerical results show that applying data-driven strategies reduces the number of inspections by 36%, while maintaining the same level of safety as in the case of traditional time-based maintenance strategies. Furthermore, in order to discuss the possibility to substitute all inspections by sensor monitoring, an advanced data-driven strategy using prognostics is considered. Overall, our proposed framework is generic and can readily be applied to assess the safety and efficiency of the maintenance of other aircraft components and maintenance strategies.",
keywords = "Aircraft maintenance, Gamma process, Landing gear brake, Safety, Simulation, Stochastically and dynamically coloured Petri nets",
author = "Juseong Lee and Mihaela Mitici",
year = "2020",
month = oct,
day = "1",
doi = "10.1016/j.ress.2020.107052",
language = "English",
volume = "202",
journal = "Reliability Engineering & System Safety",
issn = "0951-8320",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - An integrated assessment of safety and efficiency of aircraft maintenance strategies using agent-based modelling and stochastic Petri nets

AU - Lee, Juseong

AU - Mitici, Mihaela

PY - 2020/10/1

Y1 - 2020/10/1

N2 - Aircraft maintenance is key for safe and efficient aircraft operations. While most studies propose cost-efficient maintenance strategies, the safety and efficiency of these strategies need to be quantified. This paper proposes a formal framework to assess the safety and efficiency of maintenance strategies by means of agent-based modelling, stochastically and dynamically coloured Petri nets, and Monte Carlo simulation. We model an end-to-end aircraft maintenance process, considering several maintenance stakeholders. We apply our framework for aircraft landing gear brakes, and use a Gamma process to model the degradation trends of the brakes. The numerical results show that applying data-driven strategies reduces the number of inspections by 36%, while maintaining the same level of safety as in the case of traditional time-based maintenance strategies. Furthermore, in order to discuss the possibility to substitute all inspections by sensor monitoring, an advanced data-driven strategy using prognostics is considered. Overall, our proposed framework is generic and can readily be applied to assess the safety and efficiency of the maintenance of other aircraft components and maintenance strategies.

AB - Aircraft maintenance is key for safe and efficient aircraft operations. While most studies propose cost-efficient maintenance strategies, the safety and efficiency of these strategies need to be quantified. This paper proposes a formal framework to assess the safety and efficiency of maintenance strategies by means of agent-based modelling, stochastically and dynamically coloured Petri nets, and Monte Carlo simulation. We model an end-to-end aircraft maintenance process, considering several maintenance stakeholders. We apply our framework for aircraft landing gear brakes, and use a Gamma process to model the degradation trends of the brakes. The numerical results show that applying data-driven strategies reduces the number of inspections by 36%, while maintaining the same level of safety as in the case of traditional time-based maintenance strategies. Furthermore, in order to discuss the possibility to substitute all inspections by sensor monitoring, an advanced data-driven strategy using prognostics is considered. Overall, our proposed framework is generic and can readily be applied to assess the safety and efficiency of the maintenance of other aircraft components and maintenance strategies.

KW - Aircraft maintenance

KW - Gamma process

KW - Landing gear brake

KW - Safety

KW - Simulation

KW - Stochastically and dynamically coloured Petri nets

UR - http://www.scopus.com/inward/record.url?scp=85086068440&partnerID=8YFLogxK

U2 - 10.1016/j.ress.2020.107052

DO - 10.1016/j.ress.2020.107052

M3 - Article

AN - SCOPUS:85086068440

VL - 202

JO - Reliability Engineering & System Safety

JF - Reliability Engineering & System Safety

SN - 0951-8320

M1 - 107052

ER -

ID: 73700594