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 Posted: Sat 23:53, 07 May 2011 Post subject: ed hardy bikini Piezoelectric Vibration Control of |
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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, Zheng X. Temperature environment, circular plate of piezoelectric active control of the frequency. Mechanics, 199 830 (1) :58-6410 weeks again, and,[link widoczny dla zalogowanych], Zheng X. Structural Mechanics of electromagnetic solids. Beijing: Science Press, 199 911 Cuijin Tai [U.S.] a, Wavelets translation. Introduction to wavelet analysis. Xi'an: Xi'an Jiaotong University Press,[link widoczny dla zalogowanych], 199512 Shen Pengcheng. Multivariable spline finite element. Beijing: Science Press, 19978642O2468OOOOOOOO284 Vibration Engineering Volume 15 SplineWaveletDecompositionMethodforVibrationControlofPiez0electricSmartBearnsWangdieZhouYouhP (DepartmentofMechanics, LanzhouUniversityLanzhou, 730000) AbstractBasedontheLagrange'sdynamicequations, anewmethodforactivevibrationcontrolofpiezoelectricsmartbeamsisdevelopedusingsplinewaveletdecompositioninthispaper. Firstly, thedeflectionofthebeamisdecomposedintocompo-nentsindifferentfrequencybandswithsplinewaveletdecomposition. Neglectinghighorderfrequencycomponentsthediffer-entialequationsoftheclosed - loopsystemarederived. Then, theobserveddeflectionofthebeamistransformedthroughscalingfunction. DuetOthescalingfunctionisalowpasswindowfunction, afterscalingfunctiontransformationthedeflec-tiondoesn'tincludehighorderfrequencycomponents. Itcaneliminateobservationspillover,[link widoczny dla zalogowanych], whichusuallymakestheclosed-loopsystemunstable. Finally,[link widoczny dla zalogowanych], anumericalsimulationexampleshowsthatthemethodsuggestedinthispaperiseffectiveandsimplerthanconventionalmethod. Keywords: smartstructures; vibrationcontrol; splinefunction; waveletdecompositioniobservationspillover the first of the men and Wang Jie, MA, April 1975,[link widoczny dla zalogowanych], 1O students. Tel: (0931) 8912447; E-mail: wjs2000 @ sina. com
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