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 Wysłany: Sob 23:59, 07 Maj 2011 Temat postu: ed hardy bikinit Piezoelectric Vibration Control o |
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Vibration control of piezoelectric smart beam spline wavelet decomposition
3147 weeks again,[link widoczny dla zalogowanych], 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,[link widoczny dla zalogowanych], 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, 730000) AbstractBasedontheLagrange'sdynamicequations, anewmethodforactivevibrationcontrolofpiezoelectricsmartbeamsisdevelopedusingsplinewaveletdecompositioninthispaper. Firstly, thedeflectionofthebeamisdecomposedintocompo-nentsindifferentfrequencybandswithsplinewaveletdecomposition. Neglectinghighorderfrequencycomponentsthediffer-entialequationsoftheclosed - loopsystemarederived. Then, theobserveddeflectionofthebeamistransformedthroughscalingfunction. DuetOthescalingfunctionisalowpasswindowfunction, afterscalingfunctiontransformationthedeflec-tiondoesn'tincludehighorderfrequencycomponents. Itcaneliminateobservationspillover, whichusuallymakestheclosed-loopsystemunstable. Finally, 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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