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REDUCTION OF UNCERTAINTIES IN SHM DATA TRANSMISSION AND FAILURE ANALYSIS WITHIN LIMITATIONS TO ECONOMIC AND SAFETY ASPECTS

Meyer, Hendrik and Thyagarajan, Sowmya and Gollnick, Volker (2017) REDUCTION OF UNCERTAINTIES IN SHM DATA TRANSMISSION AND FAILURE ANALYSIS WITHIN LIMITATIONS TO ECONOMIC AND SAFETY ASPECTS. In: PROCEEDINGS OF THE 6TH INTERNATIONAL WORKSHOP ON AIRCRAFT SYSTEM TECHNOLOGIES. Shaker. AST 2017, 21.-22. Feb.2 017, Hamburg, Deutschland. ISBN 978-3-8440-5086-8

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Abstract

In Clean Sky 2 project DEMETER the potential of Structure Health Monitoring (SHM) is investigated in the context of Condition Based Maintenance. Data generated through SHM systems can be managed by Direct or Indirect measurement techniques. Indirect measurements comprise of selecting physical parameter or signals which have a negative effect on structural load and stresses like g-force or differential pressure. For the usage in SHM solutions physical data need to be collected, stored, transmitted and transferred to structural load models. Therefore, the concept proposed in this paper deals with a generic approach for tolerances and failure calculation with an extension of analysis on their negative effects over indirect measurements. The failures and remaining usage of the structure taken into consideration will be calculated, wherein magnitude of different failure rates will also be depicted. This will be followed by defining and analysing the limitations that could be caused due to implementation .of indirect measurements. In this study A320 engine mount bolts subjected to CBM program are analysed. For the proposed indirect SHM systems existing components in the aircraft are used and no design changes on the aircraft are planned. This may further emerge problems with design integrity of the existing components, which in turn bring restrictions to the use of health management and adds uncertainties via the data generated by structure health monitoring systems. The results will give possible recommendations to reduce the confidence interval with the usage model developed and therefore increasing the benefit of the health monitoring approach proposed.

Item URL in elib:https://elib.dlr.de/112583/
Document Type:Conference or Workshop Item (Speech)
Title:REDUCTION OF UNCERTAINTIES IN SHM DATA TRANSMISSION AND FAILURE ANALYSIS WITHIN LIMITATIONS TO ECONOMIC AND SAFETY ASPECTS
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Meyer, Hendrikhendrik.meyer (at) dlr.deUNSPECIFIED
Thyagarajan, SowmyaSowmya.Thyagarajan (at) dlr.deUNSPECIFIED
Gollnick, VolkerVolker.Gollnick (at) dlr.deUNSPECIFIED
Date:21 February 2017
Journal or Publication Title:PROCEEDINGS OF THE 6TH INTERNATIONAL WORKSHOP ON AIRCRAFT SYSTEM TECHNOLOGIES
Refereed publication:No
Open Access:No
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Editors:
EditorsEmail
von Estorff, OttoTUHH
Thielecke, FrankTUHH
Publisher:Shaker
Series Name:Luft- und Raumfahrttechnik
ISBN:978-3-8440-5086-8
Status:Published
Keywords:Maintenance, Structure, SHM, Uncertainties, Wartung, Struktur, Fehler
Event Title:AST 2017
Event Location:Hamburg, Deutschland
Event Type:international Conference
Event Dates:21.-22. Feb.2 017
Organizer:Technische Universität Hamburg
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Systems and Cabin
Location: Hamburg
Institutes and Institutions:Air Transport Operations > System Analysis Air Transport
Deposited By: Meyer, Hendrik
Deposited On:13 Jul 2017 15:28
Last Modified:13 Jul 2017 15:28

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