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Indirect approaches to individual aircraft structural monitoring

Indirect approaches to individual aircraft structural monitoring
Indirect approaches to individual aircraft structural monitoring
At present, aircraft structural integrity is maintained by equally applying to an entire fleet knowledge obtained during the design phase and/or from a fleet sample and by introducing conservative assumptions, load surveys, costly inspections and maintenance procedures to safeguard airworthiness. Several investigations have highlighted the significant variations in individual aircraft usage and have indicated the inadequacy of applying "conservative" assumptions and updating the assumptions by monitoring a fleet sample. They have, in addition, suggested the importance of individual aircraft tracking (IAT). IAT can be achieved by fitting each aircraft with strain gauges to monitor critical component loads directly, but maintaining a large number of strain gauges entails high operational costs. Affordable IAT can be achieved by analysing recorded flight parameters to indicate usage, loads and fatigue indirectly. This paper reviews the key investigations into indirect IAT structural monitoring methods.
aircraft structural monitoring, individual aircraft tracking (iat), recorded flight parameters
2041-3025
329-346
Wallace, M.
78438244-57f6-43d7-8aec-5b345cd2de31
Azzam, H.
794981f5-8f3e-4ec7-aa2e-83a7ab0eebe8
Newman, S.
802c97ed-ea28-477f-8b1e-8e4f873c4281
Wallace, M.
78438244-57f6-43d7-8aec-5b345cd2de31
Azzam, H.
794981f5-8f3e-4ec7-aa2e-83a7ab0eebe8
Newman, S.
802c97ed-ea28-477f-8b1e-8e4f873c4281

Wallace, M., Azzam, H. and Newman, S. (2004) Indirect approaches to individual aircraft structural monitoring. Proceedings of the Institution of Mechanical Engineers, Part G: Journal of Aerospace Engineering, 218 (5), 329-346. (doi:10.1243/0954410042467059).

Record type: Article

Abstract

At present, aircraft structural integrity is maintained by equally applying to an entire fleet knowledge obtained during the design phase and/or from a fleet sample and by introducing conservative assumptions, load surveys, costly inspections and maintenance procedures to safeguard airworthiness. Several investigations have highlighted the significant variations in individual aircraft usage and have indicated the inadequacy of applying "conservative" assumptions and updating the assumptions by monitoring a fleet sample. They have, in addition, suggested the importance of individual aircraft tracking (IAT). IAT can be achieved by fitting each aircraft with strain gauges to monitor critical component loads directly, but maintaining a large number of strain gauges entails high operational costs. Affordable IAT can be achieved by analysing recorded flight parameters to indicate usage, loads and fatigue indirectly. This paper reviews the key investigations into indirect IAT structural monitoring methods.

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More information

Published date: 2004
Keywords: aircraft structural monitoring, individual aircraft tracking (iat), recorded flight parameters

Identifiers

Local EPrints ID: 22970
URI: http://eprints.soton.ac.uk/id/eprint/22970
ISSN: 2041-3025
PURE UUID: e7556e5b-cfe0-463c-9f30-8b97fa59110b

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Date deposited: 23 Mar 2006
Last modified: 15 Mar 2024 06:42

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Contributors

Author: M. Wallace
Author: H. Azzam
Author: S. Newman

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