Vibration and Structural Acoustics Analysis: Current Research and Related Technologies

327 Pages·2011·0.46 MB·English

by  L. M. J. S. Dinis

Vibration and Structural Acoustics Analysis

C.M.A. Vasques (cid:2) J. Dias Rodrigues
Editors
Vibration and
Structural Acoustics
Analysis
Current Research and Related Technologies
Editors
C.M.A.Vasques J.DiasRodrigues
INEGI FaculdadedeEngenharia
UniversidadedoPorto UniversidadedoPorto
CampusdaFEUP R.DrRobertoFriass/n
R.Dr.RobertoFrias400 4200-465Porto
4200-465Porto Portugal
Portugal [email protected]
[email protected]
ISBN978-94-007-1702-2 e-ISBN978-94-007-1703-9
DOI10.1007/978-94-007-1703-9
SpringerDordrechtHeidelbergLondonNewYork
LibraryofCongressControlNumber:2011935121
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Preface
Vibrationandstructuralacousticsanalysisisnowadaysanessentialrequirementfor
high-quality structural and mechanical design in order to assure acoustic comfort
and the integrity, reliability and fail-safe behavior of structures and machines. In
some conditions vibration and radiated sound in structures and machines is desir-
able, as is the case of the motion of a tuning fork, the enjoyable melody that a
classical guitar may produce or the motion induced by vibration conveyors. More
often,vibrationandtheunderlyingradiatednoiseareundesirableandinconvenient,
as is the case of the vibrational motion of internal combustion engines, the noise
generatedbyrailwaytraffic,theimperfectionsinthemillingandturningprocesses
due to machine tool chatter or the vibration instability of light-weight aerospace
structures.
Theunderlyingtechnologiesofthisfieldofmultidisciplinaryresearchareevolv-
ing very fast and their dissemination is usually scattered over different and com-
plementaryscientificandtechnicalpublicationmeans.Inordertomakeiteasyfor
developersandtechnologyend-userstofollowthelatestdevelopmentsandnewson
the field, this book collects into a single volume selected, extended, updated and
revisedversionsofthepaperspresentedattheSymposiumonVibrationandStruc-
tural Acoustics Analysis, coordinated by J. Dias Rodrigues and C.M.A. Vasques,
ofthe3rdInternationalConferenceonIntegrity,Reliability&Failure(IRF’2009),
co-chairedbyJ.F.SilvaGomesandShakerA.Meguid,heldattheFacultyofEngi-
neeringoftheUniversityofPorto,Portugal,20–24July2009.Theselectedpapers
wherechosenamongthemorethan60paperspresentedattheconferencesympo-
sium.
Writtenbyexperiencedpractitionersandresearchersinthefield,thisbookbrings
togetherrecentdevelopmentsinthefield,spanningacrossabroadrangeofthemes:
vibrationanalysis,analyticalandcomputationalstructuralacousticsandvibration,
materialsystems andtechnologiesfor noiseandvibrationcontrol,vibration-based
structuralhealthmonitoring/evaluation,machinerynoise/vibrationanddiagnostics,
experimental testing in vibration and structural acoustics, applications and case
studies in structural acoustics and vibration. Each chapter somewhat presents and
describesthestateoftheart,presentscurrentresearchresultsanddiscussestheneed
v
vi Preface
for future developmentsin a particular aspect of vibrationand structural acoustics
analysis.
Thebookisenvisagedtobeanappellativetextfornewcomerstothesubjectand
ausefulresearchstudytoolforadvancedstudentsandfacultymembers.Practition-
ersandresearchersmayalsofindthisbookanappellativereferencethataddresses
current and future challenges in this field. The variety of case studies is expected
tostimulateaholisticviewofsoundandvibrationandrelatedfieldsandtoappeal
toabroadspectrumofengineerssuchastheonesinthemechanical,aeronautical,
aerospace,civilandelectricalcommunities.
Withthesynergisticcombinationofeffortsofauthors,editorsandinvitedreview-
ers,thisbookbringstogethersomanyinterrelatedandyetdiversetopicsinasingle
volume.Hopefully,theeditorsexpectitallowsthereaderstogetanupdatedsense
of the interest, technical diversity and applicability of this ever evolving research
field,andthatitmaybeusedasaroad-maptotherequiredpracticalunderstanding
andtechnicalskillsrequiredtoanalyzeandengineernewsolutionsforproblemson
vibrationandstructuralacousticsfields.
UniversityofPorto C.M.A.Vasques
Porto,Portugal J.DiasRodrigues
Acknowledgements
Theeditorsstronglyacknowledgethevaluableeffortsofallbookcontributorsand
authors.Puttingforwardthisbookwasonlypossibleduetotheirpositiveanswerto
thecallforpapersandtothenumberofcontributionssubmittedandevaluatedfrom
wherethebestwereselected.
The contributions in this volume have undergone a full peer-review. In view of
this, we are particular indebted to all peer reviewers that have kindly accepted the
invitationtotakepartinthereviewingprocessandthatprovidedvaluablecomments
whichcertainlyledtoimprovementsinthechapterscontainedinthisbook.Inpar-
ticular,wewouldliketoacknowledgethecollaborationof:
Aassif,E.H. Collet,M.
(IbnZohrUniversity,MA) (UniversityofFranche-Comté,FR)
Abdo,J. Devriendt,C.
(SultanQaboosUniversity,OM) (VrijeUniversiteitBrussel,BE)
Albarbar,A. Ducarne,J.
(ManchesterMetropolitanUniv.,UK) (ThalesAleniaSpace,FR)
Alfano,M. Duffey,T.
(UniversitàdellaCalabria,IT) (ConsultingEngineer,US)
Anthonis,J. Dutta,D.
(KatholiekeUniversiteitLeuven,BE) (CarnegieMellonUniversity,US)
Bard,D. Fidlin,A.
(LundUniversity,SE) (KarlsruheInstituteofTechnology,DE)
Beck,B. Foltête,E.
(GeorgiaInstituteofTechnology,US) (UniversityofFranche-Comté,FR)
Borza,D. Gil,L.
(INSAdeRouen,FR) (Univ.PolitècnicadeCatalunya,ES)
Chen,J.-T. Gu,Y.
(NationalTaiwanOceanUniv.,TW) (QueenslandUniv.ofTechnology,AU)
vii
viii Acknowledgements
Han,J.-G. Ravina,E.
(HainanUniversity,CN) (UniversityofGenova,IT)
Kessler,S.S. Ribeiro,A.M.R.
(MetisDesignCorporation,US) (TechnicalUniversityofLisbon,PT)
Küchler,S. Ripamonti,F.
(UniversityofStuttgart,DE) (PolitecnicodiMilano,IT)
Latif,R. Samandari,H.
(IbnZohrUniversity,MA) (UniversityofTabriz,IR)
Lee,D.-H. Sarigül,A.S.
(Dong-EuiUniversity,KR) (DokuzEylülUniversity,TR)
Li,H.J. Seçgin,A.
(OceanUniversityofChina,CN) (DokuzEylülUniversity,TR)
Loendersloot,R. Sinha,J.K.
(UniversityofTwente,NL) (UniversityofManchester,UK)
Martarelli,M. Sohn,H.
(Univ.PolitecnicadelleMarche,IT) (KAIST,KR)
Matter,M. Stubbs,N.
(EPFLausanne,CH) (TexasA&MUniversity,US)
Montalvão,D. Thomas,M.
(InstitutoPolitécnicodeSetúbal,PT) (UniversitéduQuébec,CA)
Neubauer,M. Trollé,A.
(LeibnizUniversitätHannover,DE) (UniversitédeLyon,FR)
Oudjene,M. Tronchin,L.
(ENSTIB,FR) (UniversitàdiBologna,IT)
Ouisse,M. Varoto,P.S.
(UniversityofFranche-Comté,FR) (UniversityofSãoPaulo,BR)
Pérez,M.A. Woodhouse,J.
(Univ.PolitècnicadeCatalunya,ES) (CambridgeUniversity,UK)
Pierro,E. Zhou,S.
(PolitecnicodiBari,IT) (NortheasternUniversity,CN)
Qiao,P. Zhu,Q.
(WashingtonStateUniversity,US) (OyamaNat.CollegeofTechnology,JP)
For helping putting forward this book, special thanks are also addressed to the
PublishingEditor,NathalieJacobs,fortheenthusiasmandsupportgiventotheedi-
torsinanearlystageofthebookplanningandpreparation.
Last but not least, we wish also to express our gratitude to the IRF’2009 con-
ferenceco-chairs,J.F.SilvaGomesandShakerA.Meguid,fortheconsiderationof
a special symposium on Vibration and Structural Acoustics Analysis in IRF’2009
conference,fromwherethepaperswereselected.
Contents
1 The Dynamic Analysis of Thin Structures Using a Radial
InterpolatorMeshlessMethod . . . . . . . . . . . . . . . . . . . . . . 1
L.M.J.S.Dinis,R.M.NatalJorge,andJ.Belinha
1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.2 OverviewoftheStateoftheArt . . . . . . . . . . . . . . . . . . . 2
1.3 TheNaturalNeighbourRadialPointInterpolationMethod . . . . . 3
1.4 DynamicDiscreteSystemofEquations . . . . . . . . . . . . . . . 6
1.5 DynamicExamples . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.5.1 CantileverBeam . . . . . . . . . . . . . . . . . . . . . . . 9
1.5.2 VariableCrossSectionBeams . . . . . . . . . . . . . . . . 11
1.5.3 Shear-Wall . . . . . . . . . . . . . . . . . . . . . . . . . . 12
1.5.4 SquarePlates. . . . . . . . . . . . . . . . . . . . . . . . . 13
1.5.5 ShallowShell . . . . . . . . . . . . . . . . . . . . . . . . 14
1.6 ProspectsfortheFuture . . . . . . . . . . . . . . . . . . . . . . . 17
1.7 Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
1.8 SelectedBibliography . . . . . . . . . . . . . . . . . . . . . . . . 17
References . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2 VibrationTestingfortheEvaluationoftheEffectsofMoisture
ContentontheIn-PlaneElasticConstantsofWoodUsedinMusical
Instruments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
M.A.PérezMartínez,P.Poletti,andL.GilEspert
2.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
2.2 OverviewoftheStateoftheArt . . . . . . . . . . . . . . . . . . . 23
2.3 OrthotropicNatureofWoodProperties . . . . . . . . . . . . . . . 25
2.4 InfluenceofMoistureChangesonWood . . . . . . . . . . . . . . 28
2.5 ExperimentalModalAnalysisofWoodenSpecimens. . . . . . . . 32
2.6 NumericalModelofWoodenPlate . . . . . . . . . . . . . . . . . 36
2.6.1 TheFiniteElementMethod . . . . . . . . . . . . . . . . . 37
2.6.2 FreeVibrationsofKirchhoffPlates . . . . . . . . . . . . . 39
2.6.3 PerturbationoftheEquationofMotion . . . . . . . . . . . 43
ix