Effect of Crack Presence on In-Flight Airframe Noises in a Wing Attachment Component

dc.contributor.author McBride, S.
dc.contributor.author Maclachlan, J.
dc.date 2018-02-14T02:21:35.000
dc.date.accessioned 2020-06-30T06:29:23Z
dc.date.available 2020-06-30T06:29:23Z
dc.date.copyright Sat Jan 01 00:00:00 UTC 1983
dc.date.issued 1983
dc.description.abstract <p>The relation of the occurrence of airframe acoustic emissions to aircraft manoeuvre are reported for Avro CF-100 upper forward wing trunnions. Periods of excessive noise are found when the airframe load is changing during entry to and exit from sustained-G manoeuvres. During constant-G periods, the airframe noise level is reduced by a factor of more than one hundred. These quiet periods provide a suitable signal-to-noise level for the in-flight detection and monitoring of slow, stable crack growth in common airframe materials, even in a noisy load transfer component such as the wing trunnion studied here. Simultaneous in-flight acoustic emission measurements in symmetrically-located airframe components are also reported. The ratio of the number of recorded event counts in a cracked component to that in an uncracked component during the same flight is found to increase linearly with the crack face area for through crack lengths in the range 0–5 mm.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/qnde/1983/allcontent/31/
dc.identifier.articleid 1030
dc.identifier.contextkey 5761611
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath qnde/1983/allcontent/31
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/58558
dc.language.iso en
dc.source.bitstream archive/lib.dr.iastate.edu/qnde/1983/allcontent/31/1983_McBride_EffectCrack.pdf|||Fri Jan 14 23:30:03 UTC 2022
dc.source.uri 10.1007/978-1-4613-3706-5_31
dc.subject.disciplines Acoustics, Dynamics, and Controls
dc.subject.disciplines Structures and Materials
dc.title Effect of Crack Presence on In-Flight Airframe Noises in a Wing Attachment Component
dc.type event
dc.type.genre article
dspace.entity.type Publication
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