基于amesim的轴向柱塞泵范例.pdf

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1、ModelofafixeddisplacementaxialpistonpumpwithswashplatedesignPurposeTheaimofthisdemoisthemodellingofanaxialpistonpumpwithswashplatedesignhavingafixeddisplacement.Thisdemoincludesaspecificsubmodelforcalculationofforcesandtorquesactingonthefixedswashplate.Openthisdemo$AME/demo/Solution

2、s/Fluids/SwashPlatePump/OneDOF.ameDescriptionFigure1ashowsasimplifiedviewofanaxialpistonpumpwithfixedswashplate.Thispumphas5pistons.ACartesiancoordinatesystemisused,asshowninthepicture.Figure1a:FixeddisplacementaxialpistonpumpoftheswashplatedesignFigure1bshowsthefrontviewofthepump,w

3、here"R"istheradiusofthepitchcirclewhileanarrowindicatesthenumberingofthepistons.Theangularpositionofthefirstpiston("fi1")isalsoshowninthesamepicture.Figure1b:FixeddisplacementaxialpistonpumpwithswashplatedesignFigure1cshowsthesideviewofthepump,wheretheswashplateangleisdepicted.Figu

4、re1c:FixeddisplacementaxialpistonpumpoftheswashplatedesignFigure2showsthecompletepumpmodelincludingthreespecificcomponentsmarkedwithlabels.Figure2:ModeloffixeddisplacementaxialpistonpumpoftheswashplatedesignFigure3showsasupercomponentforthecalculationofvolumetricflowratebetweenthepu

5、mpingcylinders,theinletportandtheoutletport.Thisisthevalveplatefunctioning.Dependingontheangularpositionofthepumpingcylinder,thereisaconnectioneitherwiththeinletorwiththeoutletport.Thereisanangularphasebetweenthepumpingcylinders.Theflowareaisalook-uptablefunctionofthepiston'sangular

6、position.Figure3:SupercomponentforthevalveplateFigure4showsaspecificsubmodelSWASH_ACT_MECH701.Thissubmodelrepresentsasinglepumpingpiston-cylinderblock-swashplatemechanism.Thisisamechanismwith2degreesoffreedom(2DOF),wherethefirstDOFisthecylinderblockrotationwhilethesecondDOFistheswas

7、hplaterotation.Figure4:Submodelforthepumpingpiston-cylinderblock-swashplatemechanismFormoredetailsrefertothesubmodeldocumentation.Figure5showsaspecificsubmodelSPL_2DOF701fortheevaluationoftheswashplateloads,inparticular:forces,torquesandtrajectoriesofforces.Thisisadynamicsubmodel,wh

8、ichcanbeusedforpump