裝車樓二次稱重電液控制系統(tǒng)的理論與應(yīng)用研究.pdf

1、燕山大學(xué)碩士學(xué)位論文裝車樓二次稱重電液控制系統(tǒng)的理論與應(yīng)用研究姓名：李順興申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：機(jī)械電子工程指導(dǎo)教師：孔祥東20070401燕山大學(xué)T學(xué)碩士學(xué)位論文AbstractThispaperisfromaproject，namedas‘‘theresearchofreweightinghydrauliccontroloftheoreloadingsystem”，exploitedbyYanshanUniversityandQi

2、nhuangdaoPortGroupCorporationAlongwiththedemandofdevelopmentrailwaybulkfrtight，itneedsmoreandmorerequirementforrailwayvehicleloadingsystemTheloadingsystemisaneotypeandspecializedloadingmachinery，widelyusedinmanytradesesp

3、eciallyintheports，andlaysweightonthebulkfrtightsuchasoreandcoalWeighingsystemisthehardcoreoftheloadingsystem，anditdirectlyinfluencesonprecisionandautomaticityofloadingWherefore，therearemanyimportanttheoryandpracticesense

4、sforthisresearchInthispagerthedevelopmentsoftheOreloadingsystembothhereandablroadaresummarized，andthemainstructuresandfunctionoftheoreloadoutsystemareintroducedandaschemeofthereweightingsystem，inwhichelectro—hydraulicpro

5、portionalpositionsystemisdesignedtocontrolunloadstrobeofweightingbin，isproposedfortheproblemsanddefectsoftheweightingcontrolsystem，inordertorealizetheaccuracycontroloftheloadingmaterialsInthispageradoptingthemeansofmodel

6、lingbymechanism，non—linearmathematicalmodelofthereweighingelectro—hydrauliccontrolsystemisestablished，andbasedonit，modularizedandnonlinearsimulationmodeliscarriedOUt，inMATLAB／SimulinkenvironmentandStateflowmoduleInsimula

7、tionresearch，themeansofsubsectionPIDcontrolisadopted，andPIDparameterscanbeoptimizedbytheNonlinearControlDesignmodule烈CD)Inaddition，thenon—linearityfactorseffectingoncontrolaccuracyofdischargegatessuchasdeadbandsaturation