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 Wysłany: Sob 23:47, 07 Maj 2011 Temat postu: christian louboutin shoes Piezoelectric Vibration |
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Vibration control of piezoelectric smart beam spline wavelet decomposition
3147 weeks again, and, by the king in mind. Based on wavelet analysis of piezoelectric cantilever plate power control mode. Mechanics, 1998; 30 (6) :719-7278ZhouYouHe, WangJizeng, ZhengXiaoJing, eta1. Vi-brationcontrolofvariablethicknessplateswithpiezo-electricsensorandactuatorbasedonwavelettheory. JournalofSoundandVibration, 2000; 237 (3) :395-4109 ZHOU and,abercrombie uk, Zheng X. Temperature environment, circular plate of piezoelectric active control of the frequency. Mechanics, 199 830 (1) :58-6410 weeks again, and, Zheng X. Structural Mechanics of electromagnetic solids. Beijing: Science Press,Franklin and Marshall uk, 199 911 Cuijin Tai [U.S.] a,mac cosmetics discount, Wavelets translation. Introduction to wavelet analysis. Xi'an: Xi'an Jiaotong University Press, 199512 Shen Pengcheng. Multivariable spline finite element. Beijing: Science Press, 19978642O2468OOOOOOOO284 Vibration Engineering Volume 15 SplineWaveletDecompositionMethodforVibrationControlofPiez0electricSmartBearnsWangdieZhouYouhP (DepartmentofMechanics, LanzhouUniversityLanzhou,christian louboutin shoes, 730000) AbstractBasedontheLagrange'sdynamicequations, anewmethodforactivevibrationcontrolofpiezoelectricsmartbeamsisdevelopedusingsplinewaveletdecompositioninthispaper. Firstly, thedeflectionofthebeamisdecomposedintocompo-nentsindifferentfrequencybandswithsplinewaveletdecomposition. Neglectinghighorderfrequencycomponentsthediffer-entialequationsoftheclosed - loopsystemarederived. Then, theobserveddeflectionofthebeamistransformedthroughscalingfunction. DuetOthescalingfunctionisalowpasswindowfunction, afterscalingfunctiontransformationthedeflec-tiondoesn'tincludehighorderfrequencycomponents. Itcaneliminateobservationspillover, whichusuallymakestheclosed-loopsystemunstable. Finally,abercrombie günstig, anumericalsimulationexampleshowsthatthemethodsuggestedinthispaperiseffectiveandsimplerthanconventionalmethod. Keywords: smartstructures; vibrationcontrol; splinefunction; waveletdecompositioniobservationspillover the first of the men and Wang Jie, MA, April 1975, 1O students. Tel: (0931) 8912447; E-mail: wjs2000 @ sina. com
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