全纏繞復(fù)合氣瓶預(yù)緊壓力和纏繞層厚度的優(yōu)化.pdf

1、大連理工大學(xué)碩士學(xué)位論文全纏繞復(fù)合氣瓶預(yù)緊壓力和纏繞層厚度的優(yōu)化姓名：古海波申請學(xué)位級別：碩士專業(yè)：化工過程機(jī)械指導(dǎo)教師：劉東學(xué)20061201全纏繞復(fù)合氣瓶預(yù)緊壓力和纏繞層厚度的優(yōu)化TheOptimizationsoftheAutofrettagePressureandtheFiberThicknessoftheFullywrappedCompositeGasCylinderAbstractAsthewidelyapplication

2、ofthecompositegascylinderthescientificanalysisandprecisecalculationtothecompositegascylinderbecomemoreandmoreimportantWithANSYSsoRwareandfiniteelementmethod，amodelofcompositegascylinderispresentedinthispaperTheelementsel

3、ectiontheelementdensitytherealconstantandtheboundaryconditionarealsodiscussedandtheAPDLprogramiSwroteThestressdistributioUSineachprocessofthemanufacture，usingexperimentandburstareobtained，Andthefatiguefailurepositionisdi

4、scussedBytakinga2LfullywrappedcompositegascylinderasanexampletheautoffettagepressureinfluencestothestressdistributioniSdiscussedThestressesrelativetodifferentautofrettagepressureareobtainedfromANSYScalculationAnditiSshow

5、nthatanautofrettagepressureCanreducethestresslevelonworkpressureandcanchangetheloaddistributionbetweenthelinerandthefiber1ayeronwerkpressureIntheendtheoptimizationoftheautofrettagepressureisachievedInadditionthehoopfiber

6、thicknessinfluencestothestressdistributioniSdiscussedtooChangingthehoopfiberthicknesswiththefinerandthelongitudefiberfixed，differentmodelswithdifferenthoopfiberthicknessareobtainedThenthestressesarecaleulatedAndtheresult

7、sshownthatwiththeincreaseofthehoopfiberthickness，theautofrettagepressuremustincreasetogetthesameautofrettageeffectandthatthestressofthelinerandthefiberarereducedonbothworkpressureandminimumburstpressureIntheend，theoptimi