用擴(kuò)散波譜研究電流變液顆粒間的相互作用.pdf

1、復(fù)旦大學(xué)碩士學(xué)位論文用擴(kuò)散波譜研究電流變液顆粒間的相互作用姓名：張莉菲申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：凝聚態(tài)物理指導(dǎo)教師：周魯衛(wèi)20030520AbstractAnowmethodofdiffusingwavespectroscopy(DWS)hasbeenappliedtostudytheinteractionsandmotionsofelectrorheological(ER)fluidsbybothexperimentalmeasurem

2、entandmoleculardynamicssimulationTheexperimentalsetupisbasedonhighspeedCCDtoinvestigatethestructureandthedynamicsofnonergodicandconcentratedsystemsuchaselectrorheological(ER)fluidsunderhighelectricfieldTheDWSresultsfromt

3、heCCDmethodandtheIraditionalmethodusingasinglemodeo砸calfiberagreewitheachotherwellforurgodiosystemThestructureresponsetimeisobtainedbymeasuringthetransmittanceofcarbondopedTie2underdifferentelectricfieldAlsothetemporalin

4、tensityautocorrelationfanetionofdiffusingwavespectroscopy(DWS)inelecⅡorheoIogical(ER)fluidsisobminedwiththemoleculardynamics(MD)simulationmethodThestructureformationisobminedusingtheelectrostaticpolarizationmodeldipolein

5、teractionThephotonsareintroducedtothepaRemoftemporalmicrostructureandthehghtscatteringprocedureisregardedasMiescatteringThefluctuationsofthelightintensityofdifferentphotonpathsarecalculatedfromthephasechangesgeneratedbyt

6、hemotionoftheparticlesThemultipolareffectisconsideredtogotmoreacearateresultsThestructuresandtheaotoeorrelationsgotfromsinglepointdipolemodelandthemu憾polemodelarecomparedThelargeinfluenceofmultipolareffectprovesthatitisi

7、mportantfactorwhenconsideringtheelectrostaticinteractionsbetweenERparticlesThefullinformationofparticleinteractionandstructurestabilityofERfluidswilldogreathelptofmdthepracticalERmaterialsKeywords：electrorheologicalfluid