巨型液壓機被動同步平衡控制系統(tǒng)的控制策略與實驗研究.pdf

1、中南大學碩士學位論文巨型液壓機被動同步平衡控制系統(tǒng)的控制策略與實驗研究姓名：段俊申請學位級別：碩士專業(yè)：機械電子工程指導教師：黃明輝20100101中南大學碩士學位論文摘要ABSTRACTIntheloadingprocessofgianthydraulicpress，duetothedifferenceofforging’Sgeometryandtemperature，etc，aswellasleakageandfriction，ca

2、usesthedeformationresistancedeviatefromthecenterofthehydraulicpress，resultingineccentrictorque，SOthatthedynamicbeamwastilting，thusaffectingtheforgingparts’formingprecision，andevenaffectthesecurityofhydraulicbodyanddie，SO

3、thebeam’SsynchronizedbalancingcontrolisofgreatsignificanceGianthydraulicmachinewithanon—linear，strongcoupling，suchastimevaryingandtimedelaycharacteristics，itisdifficulttoestablishanaccuratemathematicalmodel，thetraditiona

4、lPIDcontrollerisdifficulttoachievethedesiredeffect，withadjustmentforalongtime，parameterinstallationdifficulty，theovershootbigandSOondisadvantagesInviewofthesystemcharacteristic，selectshumanintelligencesimulatingcontrol(H

5、SIC)，itisweaktodependonthemathematicalmodel，robust，adapttothecontrolofnonlineartime—varyingsystemsThisarticletakesartificialimitationsasguidingprinciple，andtakessomegianthydraulicpress，whichinstallsfourcylinderstocorrect

6、error，astheobjectofstudy，usingtheoreticalanalysis，valuesimulationandexperimentalconfirmationmethod，tesearchmovesdynamicbeamsmathematicalmodel，thepassivesynchronizedbalancedsystem’Sdesignandtheexperiment，theconcreteworkis

7、asfollows(1)Carriesonthepreliminarydesignandtheanalysistohydrauliccircuitofthegianthydraulicpress’Spassivesynchronizedbalancedsystem，anddeterminedthatsystem’Smainparameterandthetechnologicalrequirement，carriesondynamicsa

8、nalysistoofmovebeambasingonthesework，consideringliquorelasticitycoefficient，viscous—dampingcoefficient，revelationcoefficientinfluencesandSOonfactors，establishessystem’Smathematicalmodel(2)Onthebasisofdynamicbeam’Smathema