Title
Monitoring load experience of individual aircraft
Author
de Jonge, J.B.
Institution
National Aerospace Laboratory NLR
Date
1990-03-09
Abstract
Paper presented at the 17th ICAS Congress, Stockholm, September 1990. The actual service load experience of aircraft may differ appreciably from design assumptions. The necessity to monitor service loads is generally recognized now for military aircraft. This paper starts with a general review of the overall life management procedure commonly used today. Specific elements in this procedure are discussed in some detail. Specific attention is paid to the amount of scatter in severity between different flights and the required sample sizes of flight load measurements for obtaining reliable average load spectrum data. Possible causes for variation in load experience between different aircraft flying the same duty are analysed. It is concluded that Individual Aircraft Tracking (lAT), if necessary at all, can usually be adequately accomplished by administrative means, indicated as Usage Monitoring.
Subject
fighter aircraft
fatigue (materials)
aircraft maneuvers
wing loading
dynamic loads
in-flight monitoring
data recording
service life
tolerances (mechanics)
damage assessment
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Publisher
Delft University of Technology
Access restriction
Campus only
Source
NLR Technical Publication TP 90084 U
Part of collection
Aerospace Engineering Reports
Document type
report
Rights
(c) 1990 National Aerospace Laboratory NLR