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Piezoelectric material impact load spectrum inversion

eterminingloadsandstructuralresponseofaerospacevehicles. In: Proceed-ingofthe3rdInter-workshoponStructuralHeahhMonitoring,[link widoczny dla zalogowanych], Stanford: CRCPress, 2001; 336-34313 King calligraphy, Wu Yue-Qin, Li billiards. Smart structure load identification method for finite element method. Mechanics and Practice, 2000; (5) :17 -1914 good as the beginning. Project structure and dynamic stability of the dynamic load identification problem: [Dissertation]. Dalian: Dalian University of Technology, 199315 Zhong Xie. Structural dynamics of the precise time integration method. Dalian University of Technology, 1994; 32 (2): 13I - 13616 Rong Wen Xiang,[link widoczny dla zalogowanych], Chih-hao,[link widoczny dla zalogowanych], Sun Shouguang. Structural dynamic load identification precision direct integration. Engineering Mechanics, 2001; 18 (4) :117 -12,217 and Wang, Yan were up to. Intelligent sensing and control panel mode numerical analysis. Journal of Computational Mechanics,[link widoczny dla zalogowanych], 2001; 18 ( Cool

:273-277InverseMethodofIdentifyingImpactLoadSpectrumsonPiezoelectricSmartStructuresZhouWanlin 'WangXinweiHuZili (TheAeronauticalScienceKeyLabforSmartMaterialsandStructures, NanjingUniversityofAeronauticsandAstronautics, Nanjing, 210016, China) (. BasicScienceDepartment, YanchengInstituteofTechnology, Yanchengr224003, China) Abstract: Basedonmodalanalysisofpiezoelectricsmartlaminatedplates, anFEMbasedinversealgorithmofthetimehistoryofimpactloadypiezoelectricmodalrespondenceispresented. Theprincipleofpiezoelectricmodalsensorisintroducedandtheformulasofcalculatingmodalrespondencebymeasuredpiezoelectricoutputsaregained. Thehighlyprecisedirectintegra-tionschemeisusedforsolvingmodaldynamicdifferentialequationofthestructureandadynamicloadidentificationmethodbythemodalrespondenceisproposed. Themethodissimple, credibleandhashighprecisionandrapidcalculationconvergen-cy. Anexampleofidentifyingimpactloadsshowsthatthemethodiseffective. Keywords: smartlaminatedplate; loadidentification; piezoelectricmodalanalysis; directintegrationscheme; inverse first author: Lin week late, male, associate professor of Health in January 1964. Tel: (0515) 8317515,13601413719; E-mail: ZHOUwANLIN88 @ SOHU. COM

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