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 Wysłany: Sob 23:47, 07 Maj 2011 Temat postu: abercrombie günstig The mechanical impedance of t |
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The mechanical impedance of the piezoelectric element and application of passive control
5): 69O a 6972HagoodNW, Flotow. Dampingofstructuralvi-brationswithpiezoelectricmaterialsandpassiveelectri-calnetworks. JournalofSoundandVibration, 1991; 146 (2) :243-2683HollkampJJ. Multimodal, passivevibrationsuppres-sionwithpiezoelectricmaterialsandresonantshunts. JournalofIntelligentMaterialSystemsandStructures. 1994; 5:49-574 Takashi Fujita,abercrombie günstig, officials and so on. Nan made off 7 l of a second bundle of soil allow for the flexibility to support Mount l soil I) 7, the eve of the / f of micro- vibration damping . She lost She offspring Yokohama, Japan Collection ,jordan shoes, 1999; 65-630 . C :493-4985 He Xinzong and so on. VII ,Abercrombie France, L, 7 July , / , / Xi has accounted for overnight l l b soil I),, a system f7IJ Buzhen Qin Yu . She broke it across Taiwan Japan Collection , 2000; 66-645 . C: 1537 ~ 1543MechanicalImpedanceofPiezoelectricElementandItsApplicationtoPassiveVibrationControlPanGongyu (SchoolofAutomobileandTrafficEngineeringJiangsuUniversityZhenjiang, 212O13) PanQiuhua (DepartmentofMathematicsandPhysics.EastChinaShipbulidingInstituteZhenjiang,christian louboutin shoes, 212003) AbstractBased0nmechamcalimpedance. therelationshipbetweenthemechanicalimpedanceandelectricimpedanceofpiezoelectricelementswithexternalcircuitisanalyzed. Thetransmissibilityofmainsystemwithpiezoelectricpassiveabsorberisobtainedonthebasisofmechanicalimpedance. OptimalvaluesofLRexternalcircuitwithmaximumabsorbingeffectarestudiedwithamethodsimilartooptimumsolutionofdynamicvibrationabsorber. Absorbingeffectofpiezoelectricelementswithexternalcircuitisconfirmedinexperiment. Theresultsshowthatwhenapiezoelectricpassiveabsorberwithoptimalval-uesofLRexternalcircuitisusedinthebeamvibrationcontrol, thepeakoftransmissibilitydecreasey19dB. Keywords: piezoelectricelement; mechanicalimpedance; passivevibrationcontrol Pangong Yu male first author . Ph.D.,mbt shoes sale, Associate Professor , January 1965 students. Tel : (0511) 8791727; E-mail: pangongyu @ hotma / l · tomi-ll -r wine
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