Impedance Variations Due to a Single Cylindrical Hole in a Rubber Sheet

dc.contributor.author Harrison, Richard
dc.date 2018-02-14T05:19:52.000
dc.date.accessioned 2020-06-30T06:36:43Z
dc.date.available 2020-06-30T06:36:43Z
dc.date.copyright Mon Jan 01 00:00:00 UTC 1990
dc.date.issued 1990
dc.description.abstract <p>The absorption of acoustic energy by a rubber sheet containing a single cylindrical hole was reported in reference 1. In that case, the hole was sited so that the top of the hole was located in the middle of the rubber sheet and the bottom of the hole was against an infinitely hard surface upon which the sheet was mounted. There were two resonant systems, the first being the walls of the holes vibrating radially as the thickness of the rubber varied and the second being the motion of the top of the hole normal to the hard surface, similar to a drum-head. We have extended this work to the case where the hole entends through the rubber sheet and is capped with a steel plate. The additional mass of the steel plate causes the resonant frequency of the rubber-steel-hole system to be at a much lower frequency than the rubber alone and also eliminates the drum-head resonance. We have analyzed this system using a dedicated, time dependent finite element program and have also verified the results of the finite element program by use of a small water-filled guided wave tube. The results show that the impedance is a useful parameter which is both sensitive to the geometry of the entire system and is a good descriptor of the resonant system.</p>
dc.format.mimetype application/pdf
dc.identifier archive/lib.dr.iastate.edu/qnde/1990/allcontent/205/
dc.identifier.articleid 2243
dc.identifier.contextkey 5793282
dc.identifier.s3bucket isulib-bepress-aws-west
dc.identifier.submissionpath qnde/1990/allcontent/205
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/59592
dc.language.iso en
dc.relation.ispartofseries Review of Progress in Quantitative Nondestructive Evaluation
dc.source.bitstream archive/lib.dr.iastate.edu/qnde/1990/allcontent/205/1990_HarrisonR_ImpedanceVariations.pdf|||Fri Jan 14 22:25:24 UTC 2022
dc.source.uri 10.1007/978-1-4684-5772-8_205
dc.title Impedance Variations Due to a Single Cylindrical Hole in a Rubber Sheet
dc.type event
dc.type.genre article
dspace.entity.type Publication
relation.isSeriesOfPublication 289a28b5-887e-4ddb-8c51-a88d07ebc3f3
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