Impact of Structural Health Monitoring on Aircraft Operating Costs by Multidisciplinary Analysis

Cusati, Vincenzo; Corcione, Salvatore; Memmolo, Vittorio

doi:10.3390/s21206938

Cited by 18 publications

(17 citation statements)

References 54 publications

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“…Another important factor from the point of view of further application of an SHM system is the added mass from sensor deployment, which, in the case of aircraft structures, has a significant impact, even if sensors are lightweight. The influence of deployed sensors on the take-off weight of an aircraft and further economic consequences are discussed in [ 55 ]. In addition to that, the number of modes of composite plate is also of interest because sensors should deliver the most relevant dynamic information about the measured structure with limited data processing.…”

Section: General Experiments and Definition Of Ospmentioning

confidence: 99%

Optimal Sensor Placement for Modal-Based Health Monitoring of a Composite Structure

Ručevskis

Rogala

Katunin

2022

Sensors

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Optimal sensor placement is one of the important issues in monitoring the condition of structures, which has a major influence on monitoring system performance and cost. Due to this, it is still an open problem to find a compromise between these two parameters. In this study, the problem of optimal sensor placement was investigated for a composite plate with simulated internal damage. To solve this problem, different sensor placement methods with different constraint variants were applied. The advantage of the proposed approach is that information for sensor placement was used only from the structure’s healthy state. The results of the calculations according to sensor placement methods were subsets of possible sensor network candidates, which were evaluated using the aggregation of different metrics. The evaluation of selected sensor networks was performed and validated using machine learning techniques and visualized appropriately. Using the proposed approach, it was possible to precisely detect damage based on a limited number of strain sensors and mode shapes taken into consideration, which leads to efficient structural health monitoring with resource savings both in costs and computational time and complexity.

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Section: General Experiments and Definition Of Ospmentioning

confidence: 99%

Optimal Sensor Placement for Modal-Based Health Monitoring of a Composite Structure

Ručevskis

Rogala

Katunin

2022

Sensors

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“…Aircraft health monitoring aims at enhancing flight safety allowing the reduction of maintenance and operational costs simultaneously [122]. A system that enables automatic detection, diagnosis, prognosis, and mitigation of adverse events arising from component failure, can be conceptualised in an integrated vehicle health management system.…”

Section: Smart Intelligent Composite Structurementioning

confidence: 99%

The Enabling Technologies for a Quasi-Zero Emissions Commuter Aircraft

et al. 2022

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The desire for greener aircraft pushes both academic and industrial research into developing technologies, manufacturing, and operational strategies providing emissions abatement. At time of writing, there are no certified electric aircraft for passengers’ transport. This is due to the requirements of lightness, reliability, safety, comfort, and operational capability of the fast air transport, which are not completely met by the state-of-the-art technology. Recent studies have shown that new aero-propulsive technologies do not provide significant fuel burn reduction, unless the operational ranges are limited to short regional routes or the electric storage capability is unrealistically high, and that this little advantage comes at increased gross weight and operational costs. Therefore, a significant impact into aviation emissions reduction can only be obtained with a revolutionary design, which integrates disruptive technologies starting from the preliminary design phase. This paper reviews the recent advances in propulsions, aerodynamics, and structures to present the enabling technologies for a low emissions aircraft, with a focus on the commuter category. In fact, it is the opinion of the European Community, which has financed several projects, that advances on the small air transport will be a fundamental step to assess the results and pave the way for large greener airplanes.

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“…However, the net weight saving is around 5% taking into consideration the mass of the SHM system. In addition, a detailed investigation provided by the authors showed that multidisciplinary analysis can be used to outfit a range of options according to number of sensors and achievable benefit [ 27 ]. In particular, according to the transducer density over the airframe, the SHM system can either reduce or increase DOC and the limit for this define the breakeven point for the feasibility of a specific SHM technology.…”

Section: Introductionmentioning

confidence: 99%

Potential Benefit of Structural Health Monitoring System on Civil Jet Aircraft

Cusati

Corcione

Memmolo

2022

Sensors

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Structural health monitoring represents an interesting enabling technology towards increasing aviation safety and reducing operating costs by unlocking novel maintenance approaches and procedures. However, the benefits of such a technology are limited to maintenance costs reductions by cutting or even eliminating some maintenance scheduled checks. The key limitation to move a step further in exploiting structural health monitoring technology is represented by the regulation imposed in sizing aircraft composite structures. A safety margin of 2.0 is usually applied to estimate the ultimate loading that composite structures must withstand. This limitation is imposed since physical nondestructive inspection of composite structures is really challenging or even impossible in some cases. However, a structural health monitoring system represents a viable way for a real time check for the health status of a composite structure. Thus, the introduction of structural health monitoring should help into reducing the stringent safety margin imposed by aviation regulation for a safe design of composite structures. By assuming a safety margin reduction from 2.0 to 1.75 thanks to the installation of permanently attached sensors for structural health diagnostics, this paper assesses the potential fuel savings and direct operating costs through a multidisciplinary analysis on a A220-like aircraft. According to the foreseen level of technology, addressed through the number of sensors per square meter, a DOC saving from 2% up to 5% is achievable preserving, at the same time, all the key aircraft performance.

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Impact of Structural Health Monitoring on Aircraft Operating Costs by Multidisciplinary Analysis

Cited by 18 publications

References 54 publications

Optimal Sensor Placement for Modal-Based Health Monitoring of a Composite Structure

Optimal Sensor Placement for Modal-Based Health Monitoring of a Composite Structure

The Enabling Technologies for a Quasi-Zero Emissions Commuter Aircraft

Potential Benefit of Structural Health Monitoring System on Civil Jet Aircraft

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