新型压电高速开关阀仿真研究

2008年第53卷第14期:1737~1741SCIENCEINCHINAPRESS,,,,310027E-mail:[e-mail]2008-02-22,2008-05-14(:2007CB714004)(:2007R10024),,.PZT;,PZT,;PZT20MPa10L/min,200Hz.(),/.,,,[1]..,.,,,[1].,,,.,,.,,[1].,.200Hz20MPa10L/min.,;,[2].(smartmaterial)(),,[3].(PZT),,(GHz)(kN)(mA).,,[4,5].,0.1%,,;,,.[6].,;,,,,.1期,1.,();,,,2.3.::1,3kN2FPZT1,,;:23kN,,p1,.,,1mm.,,,12.2[7]1.2.1,1,PZT1,PZT11212,fSSrFFFFFFFmx−+−+−+=(1)F1p1,221π()411Fddp=−;F2p2,22π42Fdp=;Ff,,2cosfvFqvρα=,v;FSi,SiF=0(Siii),Kxx+Δi=1,2;Fr,12,rrrFFF=−+111()(0)rhh,Fkhxrxxh−+≤≤22()rFkhxrx=−+=(x≤2),hFPZT11[8]1,maxT11111,max1,maxPZT111,max(),0()LKUxxLUFxL⎧⎛⎞Δ−Δ⎪⎜⎟⎜⎟=⎨⎝⎠⎪Δ⎩≤KT1,ΔL1,max,U1,U1,max1.2201,1,21ππ,44vveVddqqxxpβ−+−=(2)qv,2PZT,,2122()vdqCAppρ=−,A,πsin1sin22xAdxdαα⎛⎞=−⎜⎟⎝⎠1,2,32vveVqqpβ−=,(3)qv,3,,3L2t;vqKpp=−pt,pt=0.1MPa;KL;,1,0,vvvqqqr=−;qv,0;qv,r;1,110(),().cvrmcppqcKpppp⎧⎪=⎨−⎪⎩≤pc.17382.2,12,,[9]PZT21212,fSSFFFFFFmx+−+−+=−(4)FPZT22,2,maxT22222,max2,maxPZT222,max(),0().LKUxxLUFxL⎧⎛⎞Δ−Δ⎪⎜⎟⎜⎟=⎨⎝⎠⎪Δ⎩≤KT2,ΔL2,max,U2U2,max2..3,;,3[10].,,,,PZT,[9].,PZT,4.31,0;2,25;3,50;4,754PI,1.122ms120V,2.4(a);(b)PI1PZT[10]PZTA×B×L/mm/μm/N/N·μm−1/kHz17×7×363218505040210×10×36323800100402d/mm3p1/MPa20βe/MPa1440Ks1/N·mm−130α/(°)55Ks2/N·mm−164.1αPZT5PZT,α.,PZT5ms.5(a),α45°65°,PZT,p2;PZT,α=55°.5(b),α45°65°,PZT,qv,2;PZT,α=55°.α=55°.4.2dPZT,d,6.,d4mm,PZTp1=20MPa,PZT1,p1.d=3mm3.5mm,p2qv,217392008年7月第53卷第14期5αPZT(a)p2;(b)qv,2.1,45°;2,55°;3,65°6dPZT(a)p2;(b)qv,2.1,d=3mm;2,d=3.5mm;3,d=4mm,d=3.5mm,p2p1,qv,2;d=3.5mmPZT.4.3p1PZT,p1,7.,p1,PZT;p2qv,2p1,p1,,7p1PZT(a)p2;(b)qv,2;(c)x.1,p1=10MPa,2,p1=15MPa,3,p1=20MPa1740,T=5ms,(7(c)),p2qv,2p1.7(b),qv,2p1,p1.4.4PZTp1=20MPa8p1=20MPa.:p1,20MPa,p2=0;,p1,p20;,p1p2,();,p120MPa,p20.8PZT/1,p1;2,p29PZT.:x=0,qv,1=qv,2=0;x=1.0mm,qv,1=qv,2=11L/min;x01mm,qv,1qv,2,qv,1qv,2;x1mm0,qv,1qv,211L/min0,qv,2qv,1.,1mm,qv,1qv,2.91,x;2,qv,1;3,qv,25,,;.,,:200Hz()20MPa()11L/min().,.1张秀英,王晓华.数字阀的开发与应用.液压与气动,2001,(3):32—332BauerF,MurrenhoffH.Piezoactuators-thefutureforhighdynamicallydrivenservo-valves.In:FluidPowerTransmissionandCon-trol,ICFP2005,2005April5—8.Hangzhou:InternationalAcademicPublisher,2005.62—683LindlerJE,AndersoneH.Piezoelectricdirectdriveservovalve.In:ProceedingofSPIE2002onIndustrialandCommercialApplica-tionsofSmartStructuresTechnologies.SanDiego:SPIEPress,2002.488—4964ReichertM,MurrenhoffH.NewconceptsanddesignofhighresponsehydraulicvalvesusingPiezo-technology.Powertransmissionandmotioncontrol.Bath:UniversityofBath,2006.401—4145WongAP,BulloughWA,ChinSB,etal.Performanceofthepiezo-poppetvalve,Part1.In:ProceedingsoftheInstitutionofMe-chanicalEngineers,PartI.JSystConEng,2006,220:439—4516郑伟智,辛洪兵,赵罘.压电驱动微位移放大机构的设计.机械科学与技术,2003,22(6):966—9677FitchEC,HongIT.Hydrauliccomponentdesignandselection.Book1oftheComputerizedFluidPowerDesignSeries.Stilwater:BarDyneInc,20018NasserKM.Developmentandanalysisofthelumpedparametermodelofapiezohydraulicactuator.Masterthesis.Blacksburg:Vir-giniaPolytechnicInstituteandStateUniversity,20009JanochaH,KuhnenK.Real-timecompensationofhysteresisandcreepinpiezoelectricactuators.SenActuA,2000,79(1):83—89[DOI]10PhysikInstrumenteGmbH&CoKG.HighperformancePiezoActuatorsforOEM,IndustryandResearch,2005September1741