Shock & Vibration, Aircraft/Aerospace, Energy Harvesting, Acoustics & Optics, Volume 9: Proceedings of the 34th IMAC, A Conference and Exposition on Structural Dynamics 2016

210 Pages·2016·16.16 MB·English

by  Anders Brandt

Conference Proceedings of the Society for Experimental Mechanics Series
Anders Brandt · Raj Singhal Editors
Shock & Vibration, Aircraft/
Aerospace, Energy
Harvesting, Acoustics &
Optics, Volume 9
Proceedings of the 34th IMAC, A Conference and Exposition
on Structural Dynamics 2016
Conference Proceedings of the Society for Experimental Mechanics Series
Series Editor
Kristin B. Zimmerman, Ph.D.
Society for Experimental Mechanics
Bethel,CT,USA
More information about this series at http://www.springer.com/series/8922

Anders Brandt (cid:129) Raj Singhal
Editors
Shock & Vibration, Aircraft/Aerospace,
Energy Harvesting, Acoustics & Optics,
Volume 9
Proceedings of the 34th IMAC, A Conference and Exposition
on Structural Dynamics 2016
Editors
AndersBrandt RajSinghal
DepartmentofTechnologyandInnovation CanadianSpaceAgency
UniversityofSouthernDenmark Montreal,Canada
Copenhagen,Denmark
ISSN2191-5644 ISSN2191-5652 (electronic)
ConferenceProceedingsoftheSocietyforExperimentalMechanicsSeries
ISBN978-3-319-30086-3 ISBN978-3-319-30087-0 (eBook)
DOI10.1007/978-3-319-30087-0
LibraryofCongressControlNumber:2016935715
#TheSocietyforExperimentalMechanics,Inc.2016
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Preface
Shock&Vibration,Aircraft/Aerospace,EnergyHarvesting,Acoustics&Opticsrepresentoneoftenvolumesoftechnical
papers presented at the 34th IMAC: Conference & Exposition on Structural Dynamics, organized by the Society for
Experimental Mechanics and held in Orlando, Florida, January 25–28, 2016. The full proceedings also include volumes
onnonlineardynamics;dynamicsofcivilstructures;modelvalidationanduncertaintyquantification;dynamicsofcoupled
structures;sensorsandinstrumentation;specialtopicsinstructuraldynamics;structuralhealthmonitoring,damagedetection
and mechatronics; rotating machinery, hybrid test methods, vibro-acoustics and laser vibrometry; and topics in modal
analysisandtesting.
Eachcollectionpresentsearlyfindingsfromexperimentalandcomputationalinvestigationsonanimportantareawithin
structural dynamics. The topics represent papers on practical issues improving energy harvesting measurements, shock
calibrationandshockenvironmentsynthesis,andapplicationsforaircraft/aerospacestructures.
Theorganizerswouldliketothanktheauthors,presenters,sessionorganizers,andsessionchairsfortheirparticipationin
thistrack.
Copenhagen,Denmark AndersBrandt
Montreal,QC,Canada RajSinghal
v

Contents
1 ImprovedCuttingForceMeasurementsinMillingUsingInverseFiltering. . . . . . .. . . . . . .. . . . . . . . 1
MartinMagnevallandTomasBeno
2 UseofaDepthCameraasaContactlessDisplacementFieldSensor. . . . . . . . . . . . . . . . . . . . . . . . . . . 13
JeanMichelFranco,JohannioMarulanda,andPeterThomson
3 UncertaintyofDigitalImageCorrelationwithVibratingDeformableTargets. . . . . . . . . . . . . . . . . . . 21
AlfredoCigada,NavidHasheminejad,andEmanueleZappa
4 PhysicalVibrationSimulationofanAcousticEnvironmentwithSixShakers
onanIndustrialStructure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
RandallL.MayesandDanielP.Rohe
5 DevelopingConservativeMechanicalShockSpecifications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
MatthewBaker,KelseyNeal,KatrinaSweetland,GarrisonStevens,
DustinHarvey,andStuartTaylor
6 ForceLimitedVibrationUsingtheApparentMassMethod. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
PaulMarchand,RajSinghal,andMarkO’Grady
7 HarmonicForceExcitationAnalysisofaSmall-BodyAsteroid/SatelliteSystem. . . . . . . . . . . . . . . . . . 67
JoshuaJohnson,WilliamH.Semke,ShankarNagRamaseriChandra,andRonaldFevig
8 AStudyontheDynamicInteractionofShockResponseFixturesandTestPayload. . . . . . . . . . . . . . . 77
JesusM.ReyesandPeterAvitabile
9 ModalAnalysesandExperimentalVerificationsofJoined-WingConfigurations. . . . . . . . . . . . . . . . . 87
BerkanAlanbay,MelinS¸ahin,andGu¨venc¸ Canbalog˘lu
10 ModalTestingofJamesWebbSpaceTelescope(JWST)OpticalTelescopeElement(OTE). . . . . . . . . 103
DouglasJ.Osterholt,DavidCloutier,TimothyMarinone,andReemHejal
11 QuantificationofDynamicDifferencesBetweenBoundaryConditions
forEnvironmentSpecificationImprovement. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
JulieM.HarvieandRandyMayes
12 ModalUpdatingofTailofaMilitaryHelicopter. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
Kurtulus¸ Ersoy,MertAtasoy,andCemGenc¸
13 ModelingofHighFrequencyShockTests. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 145
WashingtonJ.DeLima,MelanieN.Ambrose,andRichardJones
14 ANovelMethodtoCorrelateaRocketLauncherFiniteElementModel
UsingExperimentalModalTestMeasurementsandIdentificationAlgorithms. . . . . . . . . . . . . . . . . . . 153
RonaldN.Couch,EliottJ.Radcliffe,andRickeyA.Caldwell
vii
viii Contents
15 NumericalStudiesontheReducedOrderModelingofFrictionless
JointContactInterfaces. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
M.BreitfussandH.J.Holl
16 StructuralDesignwithJointsforMaximumDissipation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179
M.Stender,A.Papangelo,M.Allen,M.Brake,C.Schwingshackl,andM.Tiedemann
17 AHybridPiezoelectricandElectrostaticVibrationEnergyHarvester. . . . . . . . . . . . . . . . . . . . . . . . . 189
H.Madinei,H.HaddadKhodaparast,S.Adhikari,andM.I.Friswell
18 DesignofScaled-DownCompositeI-BeamsforDynamicCharacterization
inSubcomponentTestingofaWindTurbineBlade. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197
MohamadEydaniAsl,ChristopherNiezrecki,JamesSherwood,andPeterAvitabile
Chapter 1
Improved Cutting Force Measurements in Milling Using Inverse
Filtering
MartinMagnevallandTomasBeno
Abstract Accurateestimatesofcuttingforcesinmetalcuttingareimportantintheevaluationofe.g.differentcuttingtool
geometries and concepts. However, dynamic influences from the measurement system affect the measurement result and
maymaketheobtainedcuttingforcedataerroneousandmisleading.Thispaperpresentsamethodtoconstructaninverse
filterwhichcompensatesforthedynamicinfluencesfromthemeasurementsystem.Usingthesuggestedapproach,unwanted
dynamic effects from the measurement system can be counteracted. By applying the inverse filter it is possible to retain
informationrelatedtothecuttingforcesathigherfrequenciesthanpossiblewithunfiltereddata.Theadvantageofusingthe
proposedmethodisillustratedbycomparingsimulated,inverse-andlow-passfilteredcuttingforcestounfilteredforcesat
different cutting speeds. The results indicate that inverse filtering can increase the usable frequency range of the force
dynamometer and thereby provide more accurate and reliable results compared to both low-pass and unfiltered force
measurements.
Keywords Metalcutting•Cuttingforce•Dynamometer•Inversefilter•Deconvolution
1.1 Introduction
Cuttingforcesareoneofthemostimportantquantityinthemetalmachiningprocess.Thecuttingforcesgovernpowerand
torquerequirementsinthemachinetoolanddriveheatgenerationwhichcatalyzestoolwearanddeterminesthemagnitude
and direction of residual stresses in the machined component. Cutting forces also cause deflection of the cutting tool,
machinetoolandworkpieceandmayhaveanegativeinfluenceonthemachinedcomponentsquality.Thecuttingforcesare
therefore important parameters in the evaluation of different cutting tool geometries and concepts. However, dynamic
influences from the measurement system affect the result and make it difficult to obtain accurate cutting force data. A
commonly used method to remove unwanted dynamic effects from the measured cutting forces is low-pass filtering.
Low-pass filtering removes all information above a specified cut-off frequency and may therefore also remove important
informationrelatedtothetruecuttingforcescontainedinfrequenciesabovethecut-offfrequency.Thisisespeciallyevident
inmillingwithtransientcuttingconditionswhentherisetimesareshortandthecuttingforcestherebyhavehighfrequency
content. Therefore, it is difficult to get reliable estimates of the amplitudes and rise times by low-pass filtering transient
cuttingforces,especiallyathighcuttingspeeds.
Accurateestimatesofbothrisetimesandforceamplitudesareimportant,e.g.,whenevaluatingandcomparingdifferent
tools and insert geometries. An alternative approach, to low-pass filtering, that improves the cutting force estimates,
i.e.increasestheeffectivefrequencyrangeoftheforcedynamometer,isthereforeofgreatinterest.
Forexample,Tlustyetal.usedaccelerometerstocompensatefortheinertiaandstructuraldampingofthedynamometer,
thereby increasing the effective frequency range [1]. This method has been proven to work under certain conditions, but
encounters difficulties around resonance frequencies when the system inertia or damping is large. The method also has
problemshandlingsystemswithmorethanonedominatingmode[2].ParkandAltintasusedaKalmanfilteringtechniqueto
compensate for unwanted dynamics and process and measurement noise of a spindle integrated force sensor, [3, 4]. The
samemethodhasalsobeenappliedtocuttingforcemeasurementsinmicroendmilling,[5].Jensenetal.,[2],developeda
M.Magnevall(*)
ABSandvikCoromant,SE-81181Sandviken,Sweden
e-mail:[email protected]
T.Beno
UniversityWest,SE-46186Trollh€attan,Sweden
e-mail:[email protected]
#TheSocietyforExperimentalMechanics,Inc.2016 1
A.Brandt,R.Singhal(eds.),Shock&Vibration,Aircraft/Aerospace,EnergyHarvesting,Acoustics&Optics,Volume9,
ConferenceProceedingsoftheSocietyforExperimentalMechanicsSeries,DOI10.1007/978-3-319-30087-0_1