Synchronizing Condition-based Maintenance with Necessary Scheduled Maintenance

Pattabhiraman, Sriram; Gogu, Christian; Kim, Nam Hoon; Haftka, Raphael T.; Bès, Christian

doi:10.2514/6.2012-1596

Cited by 4 publications

(6 citation statements)

References 18 publications

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“…They conclude that the incurred costs due to the weight increase are five times higher than the benefits, arguing that a lifetime revenue of $50M is lost due to payload reduction. In contrast, Pattabhiraman et al 11 state that SHM could incur a cost increase of $3.5 M due to the weight penalty, but on the other hand, CBM could lead to a $12M benefit over scheduled maintenance, leading to a net benefit of approximately $8M over the lifetime of an aircraft. Here, the mass of the SHM system was assumed a percentage of the fuselage mass.…”

Section: Introductionmentioning

confidence: 94%

“…Considering the power demand P USI of a USS interrogator and per unit area p A,US ¼ P USI n USI A PWAS (11) In the case of FOS, required electrical power per fiber length, assuming an interrogator power demand of P FOSI , is…”

Section: Pwasmentioning

confidence: 99%

“…One of the principal economic benefits arises from shifting scheduled maintenance to condition based, predictive or prescriptive maintenance. [11][12][13][14][15][16] Thereby, improvements in maintenance planning, maintenance downtime, unexpected delays, and overall cost of MRO are expected. Moreover, current inspection methods require the removal of structural components in order to access and inspect buried structural parts.…”

Section: Introductionmentioning

confidence: 99%

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Modeling of an aircraft structural health monitoring sensor network for operational impact assessment

Büchter

Saez

Steinweg

2021

Structural Health Monitoring

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Structural health monitoring (SHM) of aircraft components can improve maintenance operations, potentially reducing costs for inspections, unscheduled maintenance events, and unexpected delays. On the other hand, aircraft safety and net present value can be adversely influenced by false alarms, missed detections, system costs, and weight and power requirements of the SHM system. In order to gain a better understanding into the latter, we present a weight and power model for a sensor network, comprising sensors, interrogators, data collectors, and wiring. We assess the net benefit of using SHM in terms of reduced expenditure as function of network coverage, considering a corresponding potential in reducing the inspection effort.

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Section: Introductionmentioning

confidence: 94%

Section: Pwasmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Modeling of an aircraft structural health monitoring sensor network for operational impact assessment

Büchter

Saez

Steinweg

2021

Structural Health Monitoring

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“…The database was populated with information derived from several producers, in terms of geometrical characteristics, autonomy, tank capacity, and maintenance costs for the service life. Data were recovered using the scientific literature [23,25,30,31]. Appendix A summarizes the input data recovered and stocked before starting the analysis.…”

Section: Numerical Application To the Aerospace Industrymentioning

confidence: 99%

Economic and Environmental Sustainability for Aircrafts Service Life

et al. 2020

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Aircrafts are responsible for a significant environmental impact mainly due to the air pollution caused by their motors. The use of composite materials for their production is a way to significantly reduce the weight of the structures and to maximise the ratio between the payload weight and the gasoline consumption. Moreover, the design phase has to consider the cost of different operations performed during the aircraft service life. During the entire life cycle, one of the main costs is the maintenance one. In the current literature, there is a lack of knowledge of methods for maintenance cost estimation in the aircraft industry; moreover, very few environmental assessment methods have been developed. Thus, the aim of this paper is to define a new method to support the aircraft design process; both the environmental and the economic dimensions have been included with the purpose of assessing the aircraft sustainability during its service life. A green index has been identified mixing the maintenance cost and an environmental parameter with the aim of identifying the greenest solution. A final practical application shows the feasibility and the simple application of the proposed approach.

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“…As the technology involved in maintenance of the aircraft advanced, the cost of maintenance also increased to a considerable extent. Still, the maintenance operations has to be carried out on a periodic basis to ensure safe and reliable operation of the industry (Pattabhiraman et al , 2012; Knezevic et al , 2017; Gonçalves et al , 2017).…”

Section: Introductionmentioning

confidence: 99%

LCA of the maintenance of a piston-prop engine

Şöhret

Ekici

Altuntaş

et al. 2019

AEAT

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Purpose This study aims to introduce an approach to evaluate environmental impact of a piston-prop engine from the view point of life cycle assessment (LCA). Design/methodology/approach In the aviation industry, safety is an important issue. For reliable and safe flights, the maintenance of aerial vehicles and engines is mandatory. Additionally, regular and correct maintenance plays a key role in keeping efficiency at a high level. With this in mind, a LCA of a regular 50 hourly maintenance process of Cessna type training aircraft is conducted. During the assessment, the starting of the engine before maintenance, replacement of the oil filter, test procedure of the spark plugs, a compressor test, engine cleaning and engine starting following maintenance are taken into account. Findings At the end of the study, normalization and characterization values for the maintenance, electricity consumption during maintenance and used fuel are obtained. Practical implications Regarding the number of this type aircraft worldwide, the current study offers a valuable contribution to the literature. The authors also intend to introduce an approach which may be useful for the assessment of large body aircraft still in service. Originality/value The present paper is a pioneer for future applications of LCA methodology to piston-prop engines and training aircraft.

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Synchronizing Condition-based Maintenance with Necessary Scheduled Maintenance

Cited by 4 publications

References 18 publications

Modeling of an aircraft structural health monitoring sensor network for operational impact assessment

Modeling of an aircraft structural health monitoring sensor network for operational impact assessment

Economic and Environmental Sustainability for Aircrafts Service Life

LCA of the maintenance of a piston-prop engine

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