20MN鍛造液壓機動態(tài)性能仿真研究.pdf

1、華中科技大學碩士學位論文20MN鍛造液壓機動態(tài)性能仿真研究姓名：李小慶申請學位級別：碩士專業(yè)：材料加工工程指導教師：陳柏金20050429IIIAbstractBasedontheanalyzing20MNfginghydraulicpressusingofSimulinktoolboxintheMatlabsoftwarethedissertationsimulatesthemaincontrolspoolvalvethatdistr

2、ibutesthehydraulicoilinthehydraulicsystemtheprocessofthedecompressioninthebackhaul.Firstlythehydraulicsystemwkprincipleeveryvalvehowtowkinthefgingprocessareintroducedespeciallythemailcontrolspoolvalveonthebasisofcomposeo

3、fthefginghydraulicpress.Secondlyhowtogetthehydraulicsystem’sdynamicperfmanceisdiscussed.Basedontheanalyzingthemodelingmethodthesimulationsoftwarethreestepsareadopted.Onthebasisofthemechanicalequationfluxbalanceequationth

4、emathematicsequationofhydraulicsystemisestablished.Aftertheanalysisthemathematicsequationthetransferfunctionthepanefigureisgottenthemathematicsmodelingissetup.ThesimulationcurveisexptedbyusingdisposalfigurefunctionintheM

5、atlabsoftware.Thirdlyusingthreestepsthemaincontrolspoolvalveissimulatedgetsthesimulationcurveonthedifferentcondition.Theresultsofcomparingthesimulationcurvethesamplecurveprovethatthemainvalvedynamicperfmancecansatisfythe

6、factualneeds.Themaincontrolspoolvalveisn’tstardspoolvalve.Thesimulationresultsprovidethereferencefthecontrolsystem.Finallybyusingthemathwayproptionalvalve’smathematicequationisestablishedafteranalyzingtheseequationsthema

7、thematicmodelingthesimulationmodelaresetup.TheproptionalvalvethemaincontrolspoolvalveencapsulatesinglemoduleintheSimulinktoolbox.Thenusingthesemodulessimulationmodelingofdecompressioninthebackhauliseasytosetup.Thesimulat