圓盤(pán)式旋流紡紗輸送管道結(jié)構(gòu)的研究.pdf

1、江南大學(xué)博士學(xué)位論文圓盤(pán)式旋流紡紗輸送管道結(jié)構(gòu)的研究姓名：顧聞彥申請(qǐng)學(xué)位級(jí)別：博士專業(yè)：紡織工程指導(dǎo)教師：葛明橋20080601Abs仃actAbstractDiscs、加rlspiIⅡlingisanewspi加ingmethod，w11ichmakesuseofjetairtoprocessy鋤t0resolvethema：ttersinairjetspinningnSubstitutesrollerdraRingsyStemwit

2、hcombillgrollerd讎ingsyStem，wllichensuresthatthedra銜ngsystemofdiscswirlspi肌ingh嬲Ⅱleadvalltagesofhi曲dra硝ngspeed’hi曲draRinge瓶ciency，aIldlittlewe耐ngFiberconVeyorisakeycomponentofdiscswirlspinningframeItcanstraighten，parallel

3、，andunifomfibersi11itby仃ansporteffectofajrItsstmcturewillaffectthecontrolleVelof肋ersduringdiscswi訂spi皿ingHence，t11estructureof6berconVeyorwillaf鳧cttheyamqualitygreatlyThenmnericalsimulationmethodisadoptedtoa11alyZethestr

4、uctureoffibreconVeyor，、砌chisakeycomponentofdiscswirlspiIlIlingfi砌eThestructllreofdiscswirlyamis鋤alyzedThequestioIlSandmekeyc伽=lponentofdiscswirlsp岫ingfamearediscussedThespi疵ngortllogonaltestSaremadet0detemlinethepossible

5、goodleVelcombinationoftIlestmcturep猢etersof舶erconVeyorofdisc剛rlspinIlingon啪eVe衄essofthesliVer，tenaCi夠鋤dpeeling—ofrresist鋤ce，whichareinletlengtllai30mm，bottomlengthb543mm，outletlen酵hc=24mm，outletwidthd=9mm，inlet州dthe=22mm

6、，theanglebetweentllebottom趾dt11einletQ=300，tlleaIlglebet、veenthetopaIldtheinletD=1480Theflowfieldcontrolequationsoffiberconveyoraresetup，andthesecond—orderdiscreteupwindSchemeundertheconditionof3Dstaggeredgridisgotwithth

7、emethodofFVMThefiberconVeyoraremeshedbytriangle／tetrahedroncellsandsquaremexahedroncellrespectiVely，andthecalculationresultsofthesetwokindsofmeshesarecompared，whichindicatethatsq眥emexahedroncellissuitablefornumericalsimu

8、lationofflow6eldofdiscswirlspin越ng6berconVeyornledifferentialnowfieldcontrolequationsofdiscswirlSpinning6berconveyoraregot，雒dtIleflowfieldinfiberconVeyorsareinvestigatedbyCFD，e玎ortests鋤dspiIlllingtestsResultsshowtIlerule

9、sthatt11edi矗、erents仃ucnlreparametersoffiberconveyor世ectonmef10wfield，whichareinletlen舒h，bottomlen酉h，outletlengtlloutletwidt：IliIllet、vidttl，theanglebet、veenthebottomandtheinlet，tIleanglebetweentlletopandⅡleiIlletWitllthe

10、aidofthenumericalsimulationaIldanalysis，anewdesignofthestnlctureoftIlefiberconveyorisproposed，whichisprovedt0beeffectivetaisetllediscswirlSpi肺ingqual時(shí)byn啪ericalsimulation，e玎0rtestsandspinningtestsTheresearChresultswillpr

11、0Videimportantexperimentalandt11eor)，baSisfortheresearchofdiscswirlspimling，whichwillresultinthemodi6cationofdiscswirlspiIulingmachineandenhancingyamqualityKeywords：discswirlSpimling，fiberconVeyor’structuIepammeterFVM，n啪